]> oss.titaniummirror.com Git - msp430-gcc.git/blobdiff - gcc/doc/gcc.info-22
Imported gcc-4.4.3
[msp430-gcc.git] / gcc / doc / gcc.info-22
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-This is doc/gcc.info, produced by makeinfo version 4.5 from
-doc/gcc.texi.
-
-INFO-DIR-SECTION Programming
-START-INFO-DIR-ENTRY
-* gcc: (gcc).                  The GNU Compiler Collection.
-END-INFO-DIR-ENTRY
-   This file documents the use of the GNU compilers.
-
-   Published by the Free Software Foundation
-59 Temple Place - Suite 330
-Boston, MA 02111-1307 USA
-
-   Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-
-   Permission is granted to copy, distribute and/or modify this document
-under the terms of the GNU Free Documentation License, Version 1.1 or
-any later version published by the Free Software Foundation; with the
-Invariant Sections being "GNU General Public License" and "Funding Free
-Software", the Front-Cover texts being (a) (see below), and with the
-Back-Cover Texts being (b) (see below).  A copy of the license is
-included in the section entitled "GNU Free Documentation License".
-
-   (a) The FSF's Front-Cover Text is:
-
-   A GNU Manual
-
-   (b) The FSF's Back-Cover Text is:
-
-   You have freedom to copy and modify this GNU Manual, like GNU
-software.  Copies published by the Free Software Foundation raise
-funds for GNU development.
-
-\1f
-File: gcc.info,  Node: Option Index,  Next: Index,  Prev: Contributors,  Up: Top
-
-Option Index
-************
-
-   GCC's command line options are indexed here without any initial `-'
-or `--'.  Where an option has both positive and negative forms (such as
-`-fOPTION' and `-fno-OPTION'), relevant entries in the manual are
-indexed under the most appropriate form; it may sometimes be useful to
-look up both forms.
-
-* Menu:
-
-* ###:                                   Overall Options.
-* $:                                     Preprocessor Options.
-* A:                                     Preprocessor Options.
-* A-:                                    Preprocessor Options.
-* ansi <1>:                              Non-bugs.
-* ansi <2>:                              Other Builtins.
-* ansi <3>:                              Preprocessor Options.
-* ansi <4>:                              C Dialect Options.
-* ansi:                                  Standards.
-* aux-info:                              C Dialect Options.
-* b:                                     Target Options.
-* B:                                     Directory Options.
-* bcopy-builtin:                         PDP-11 Options.
-* c:                                     Link Options.
-* C:                                     Preprocessor Options.
-* c:                                     Overall Options.
-* D:                                     Preprocessor Options.
-* d:                                     Debugging Options.
-* da:                                    Debugging Options.
-* dA:                                    Debugging Options.
-* dB:                                    Debugging Options.
-* db:                                    Debugging Options.
-* dC:                                    Debugging Options.
-* dc:                                    Debugging Options.
-* dD <1>:                                Preprocessor Options.
-* dD:                                    Debugging Options.
-* dd:                                    Debugging Options.
-* dE:                                    Debugging Options.
-* de:                                    Debugging Options.
-* dF:                                    Debugging Options.
-* df:                                    Debugging Options.
-* dG:                                    Debugging Options.
-* dg:                                    Debugging Options.
-* dh:                                    Debugging Options.
-* dI:                                    Preprocessor Options.
-* di:                                    Debugging Options.
-* dj:                                    Debugging Options.
-* dk:                                    Debugging Options.
-* dL:                                    Debugging Options.
-* dl:                                    Debugging Options.
-* dM:                                    Preprocessor Options.
-* dm:                                    Debugging Options.
-* dM:                                    Debugging Options.
-* dN <1>:                                Preprocessor Options.
-* dN:                                    Debugging Options.
-* dn:                                    Debugging Options.
-* do:                                    Debugging Options.
-* dP:                                    Debugging Options.
-* dp:                                    Debugging Options.
-* dR:                                    Debugging Options.
-* dr:                                    Debugging Options.
-* dS:                                    Debugging Options.
-* ds:                                    Debugging Options.
-* dt:                                    Debugging Options.
-* dumpmachine:                           Debugging Options.
-* dumpspecs:                             Debugging Options.
-* dumpversion:                           Debugging Options.
-* dv:                                    Debugging Options.
-* dw:                                    Debugging Options.
-* dx:                                    Debugging Options.
-* dX:                                    Debugging Options.
-* dy:                                    Debugging Options.
-* dz:                                    Debugging Options.
-* E <1>:                                 Link Options.
-* E:                                     Overall Options.
-* EB <1>:                                ARC Options.
-* EB:                                    MIPS Options.
-* EL <1>:                                ARC Options.
-* EL:                                    MIPS Options.
-* falign-functions:                      Optimize Options.
-* falign-jumps:                          Optimize Options.
-* falign-labels:                         Optimize Options.
-* falign-loops:                          Optimize Options.
-* fallow-single-precision:               C Dialect Options.
-* falt-external-templates <1>:           Template Instantiation.
-* falt-external-templates:               C++ Dialect Options.
-* fargument-alias:                       Code Gen Options.
-* fargument-noalias:                     Code Gen Options.
-* fargument-noalias-global:              Code Gen Options.
-* fbounds-check:                         Optimize Options.
-* fbranch-probabilities:                 Optimize Options.
-* fcall-saved <1>:                       Interoperation.
-* fcall-saved:                           Code Gen Options.
-* fcall-used:                            Code Gen Options.
-* fcaller-saves:                         Optimize Options.
-* fcheck-new:                            C++ Dialect Options.
-* fcond-mismatch:                        C Dialect Options.
-* fconserve-space:                       C++ Dialect Options.
-* fconstant-string-class:                Objective-C Dialect Options.
-* fcse-follow-jumps:                     Optimize Options.
-* fcse-skip-blocks:                      Optimize Options.
-* fdata-sections:                        Optimize Options.
-* fdelayed-branch:                       Optimize Options.
-* fdelete-null-pointer-checks:           Optimize Options.
-* fdiagnostics-show-location:            Language Independent Options.
-* fdollars-in-identifiers <1>:           Interoperation.
-* fdollars-in-identifiers:               C++ Dialect Options.
-* fdump-class-hierarchy:                 Debugging Options.
-* fdump-translation-unit:                Debugging Options.
-* fdump-tree:                            Debugging Options.
-* fdump-unnumbered:                      Debugging Options.
-* fexceptions:                           Code Gen Options.
-* fexpensive-optimizations:              Optimize Options.
-* fexternal-templates <1>:               Template Instantiation.
-* fexternal-templates:                   C++ Dialect Options.
-* ffast-math:                            Optimize Options.
-* ffixed:                                Code Gen Options.
-* ffloat-store <1>:                      Disappointments.
-* ffloat-store:                          Optimize Options.
-* ffor-scope:                            C++ Dialect Options.
-* fforce-addr:                           Optimize Options.
-* fforce-mem:                            Optimize Options.
-* ffreestanding <1>:                     Function Attributes.
-* ffreestanding <2>:                     C Dialect Options.
-* ffreestanding:                         Standards.
-* ffunction-sections:                    Optimize Options.
-* fgcse:                                 Optimize Options.
-* fgcse-lm:                              Optimize Options.
-* fgcse-sm:                              Optimize Options.
-* fgnu-runtime:                          Objective-C Dialect Options.
-* fhosted:                               C Dialect Options.
-* finhibit-size-directive:               Code Gen Options.
-* finline-functions:                     Optimize Options.
-* finline-limit:                         Optimize Options.
-* finstrument-functions <1>:             Function Attributes.
-* finstrument-functions:                 Code Gen Options.
-* fkeep-inline-functions <1>:            Inline.
-* fkeep-inline-functions:                Optimize Options.
-* fkeep-static-consts:                   Optimize Options.
-* fleading-underscore:                   Code Gen Options.
-* fmem-report:                           Debugging Options.
-* fmessage-length:                       Language Independent Options.
-* fmove-all-movables:                    Optimize Options.
-* fms-extensions:                        C++ Dialect Options.
-* fnext-runtime:                         Objective-C Dialect Options.
-* fno-access-control:                    C++ Dialect Options.
-* fno-asm:                               C Dialect Options.
-* fno-branch-count-reg:                  Optimize Options.
-* fno-builtin <1>:                       Other Builtins.
-* fno-builtin:                           C Dialect Options.
-* fno-common <1>:                        Variable Attributes.
-* fno-common:                            Code Gen Options.
-* fno-const-strings:                     C++ Dialect Options.
-* fno-cprop-registers:                   Optimize Options.
-* fno-default-inline <1>:                Inline.
-* fno-default-inline <2>:                Optimize Options.
-* fno-default-inline:                    C++ Dialect Options.
-* fno-defer-pop:                         Optimize Options.
-* fno-elide-constructors:                C++ Dialect Options.
-* fno-enforce-eh-specs:                  C++ Dialect Options.
-* fno-for-scope:                         C++ Dialect Options.
-* fno-function-cse:                      Optimize Options.
-* fno-gnu-keywords:                      C++ Dialect Options.
-* fno-gnu-linker:                        Code Gen Options.
-* fno-guess-branch-probability:          Optimize Options.
-* fno-ident:                             Code Gen Options.
-* fno-implement-inlines <1>:             C++ Interface.
-* fno-implement-inlines:                 C++ Dialect Options.
-* fno-implicit-inline-templates:         C++ Dialect Options.
-* fno-implicit-templates <1>:            Template Instantiation.
-* fno-implicit-templates:                C++ Dialect Options.
-* fno-inline:                            Optimize Options.
-* fno-math-errno:                        Optimize Options.
-* fno-nonansi-builtins:                  C++ Dialect Options.
-* fno-operator-names:                    C++ Dialect Options.
-* fno-optional-diags:                    C++ Dialect Options.
-* fno-peephole:                          Optimize Options.
-* fno-peephole2:                         Optimize Options.
-* fno-rtti:                              C++ Dialect Options.
-* fno-sched-interblock:                  Optimize Options.
-* fno-sched-spec:                        Optimize Options.
-* fno-show-column:                       Preprocessor Options.
-* fno-signed-bitfields:                  C Dialect Options.
-* fno-stack-limit:                       Code Gen Options.
-* fno-trapping-math:                     Optimize Options.
-* fno-unsigned-bitfields:                C Dialect Options.
-* fno-weak:                              C++ Dialect Options.
-* fnon-call-exceptions:                  Code Gen Options.
-* fomit-frame-pointer:                   Optimize Options.
-* foptimize-register-move:               Optimize Options.
-* foptimize-sibling-calls:               Optimize Options.
-* fpack-struct:                          Code Gen Options.
-* fpcc-struct-return <1>:                Incompatibilities.
-* fpcc-struct-return:                    Code Gen Options.
-* fpermissive:                           C++ Dialect Options.
-* fPIC:                                  Code Gen Options.
-* fpic:                                  Code Gen Options.
-* fprefetch-loop-arrays:                 Optimize Options.
-* fpreprocessed:                         Preprocessor Options.
-* fpretend-float:                        Debugging Options.
-* fprofile-arcs <1>:                     Other Builtins.
-* fprofile-arcs:                         Debugging Options.
-* freduce-all-givs:                      Optimize Options.
-* freg-struct-return:                    Code Gen Options.
-* fregmove:                              Optimize Options.
-* frename-registers:                     Optimize Options.
-* frepo <1>:                             Template Instantiation.
-* frepo:                                 C++ Dialect Options.
-* frerun-cse-after-loop:                 Optimize Options.
-* frerun-loop-opt:                       Optimize Options.
-* fsched-spec-load:                      Optimize Options.
-* fsched-spec-load-dangerous:            Optimize Options.
-* fsched-verbose:                        Debugging Options.
-* fschedule-insns:                       Optimize Options.
-* fschedule-insns2:                      Optimize Options.
-* fshared-data:                          Code Gen Options.
-* fshort-double:                         Code Gen Options.
-* fshort-enums <1>:                      Non-bugs.
-* fshort-enums <2>:                      Type Attributes.
-* fshort-enums:                          Code Gen Options.
-* fshort-wchar:                          Code Gen Options.
-* fsigned-bitfields <1>:                 Non-bugs.
-* fsigned-bitfields:                     C Dialect Options.
-* fsigned-char:                          C Dialect Options.
-* fsingle-precision-constant:            Optimize Options.
-* fssa:                                  Optimize Options.
-* fssa-ccp:                              Optimize Options.
-* fssa-dce:                              Optimize Options.
-* fstack-check:                          Code Gen Options.
-* fstack-limit-register:                 Code Gen Options.
-* fstack-limit-symbol:                   Code Gen Options.
-* fstats:                                C++ Dialect Options.
-* fstrength-reduce:                      Optimize Options.
-* fstrict-aliasing:                      Optimize Options.
-* fsyntax-only:                          Warning Options.
-* ftabstop:                              Preprocessor Options.
-* ftemplate-depth:                       C++ Dialect Options.
-* ftest-coverage:                        Debugging Options.
-* fthread-jumps:                         Optimize Options.
-* ftime-report:                          Debugging Options.
-* ftrapv:                                Optimize Options.
-* funroll-all-loops:                     Optimize Options.
-* funroll-loops <1>:                     Non-bugs.
-* funroll-loops:                         Optimize Options.
-* funsafe-math-optimizations:            Optimize Options.
-* funsigned-bitfields <1>:               Non-bugs.
-* funsigned-bitfields:                   C Dialect Options.
-* funsigned-char:                        C Dialect Options.
-* funwind-tables:                        Code Gen Options.
-* fuse-cxa-atexit:                       C++ Dialect Options.
-* fverbose-asm:                          Code Gen Options.
-* fvolatile:                             Code Gen Options.
-* fvolatile-global:                      Code Gen Options.
-* fvolatile-static:                      Code Gen Options.
-* fvtable-gc:                            C++ Dialect Options.
-* fwritable-strings <1>:                 Incompatibilities.
-* fwritable-strings:                     C Dialect Options.
-* G <1>:                                 System V Options.
-* G <2>:                                 MIPS Options.
-* G <3>:                                 RS/6000 and PowerPC Options.
-* G:                                     M32R/D Options.
-* g:                                     Debugging Options.
-* gcc:                                   Preprocessor Options.
-* gcoff:                                 Debugging Options.
-* gdwarf:                                Debugging Options.
-* gdwarf+:                               Debugging Options.
-* gdwarf-2:                              Debugging Options.
-* gen-decls:                             Objective-C Dialect Options.
-* ggdb:                                  Debugging Options.
-* gstabs:                                Debugging Options.
-* gstabs+:                               Debugging Options.
-* gvms:                                  Debugging Options.
-* gxcoff:                                Debugging Options.
-* gxcoff+:                               Debugging Options.
-* H:                                     Preprocessor Options.
-* h:                                     Preprocessor Options.
-* help <1>:                              Preprocessor Options.
-* help:                                  Overall Options.
-* I <1>:                                 Directory Options.
-* I:                                     Preprocessor Options.
-* I- <1>:                                Directory Options.
-* I-:                                    Preprocessor Options.
-* idirafter:                             Preprocessor Options.
-* imacros:                               Preprocessor Options.
-* include:                               Preprocessor Options.
-* iprefix:                               Preprocessor Options.
-* isystem:                               Preprocessor Options.
-* iwithprefix:                           Preprocessor Options.
-* iwithprefixbefore:                     Preprocessor Options.
-* L:                                     Directory Options.
-* l:                                     Link Options.
-* lobjc:                                 Link Options.
-* M:                                     Preprocessor Options.
-* m1:                                    SH Options.
-* m10:                                   PDP-11 Options.
-* m128bit-long-double:                   i386 and x86-64 Options.
-* m16-bit:                               CRIS Options.
-* m2:                                    SH Options.
-* m210:                                  MCore Options.
-* m29000:                                AMD29K Options.
-* m29050:                                AMD29K Options.
-* m3:                                    SH Options.
-* m31:                                   S/390 and zSeries Options.
-* m32 <1>:                               i386 and x86-64 Options.
-* m32:                                   SPARC Options.
-* m32-bit:                               CRIS Options.
-* m32032:                                NS32K Options.
-* m32081:                                NS32K Options.
-* m32332:                                NS32K Options.
-* m32381:                                NS32K Options.
-* m32532:                                NS32K Options.
-* m32r:                                  M32R/D Options.
-* m32rx:                                 M32R/D Options.
-* m340:                                  MCore Options.
-* m386:                                  i386 and x86-64 Options.
-* m3dnow:                                i386 and x86-64 Options.
-* m3e:                                   SH Options.
-* m4:                                    SH Options.
-* m4-nofpu:                              SH Options.
-* m4-single:                             SH Options.
-* m4-single-only:                        SH Options.
-* m40:                                   PDP-11 Options.
-* m45:                                   PDP-11 Options.
-* m4650:                                 MIPS Options.
-* m486:                                  i386 and x86-64 Options.
-* m4byte-functions:                      MCore Options.
-* m5200:                                 M680x0 Options.
-* m64 <1>:                               S/390 and zSeries Options.
-* m64 <2>:                               i386 and x86-64 Options.
-* m64:                                   SPARC Options.
-* m68000:                                M680x0 Options.
-* m68020:                                M680x0 Options.
-* m68020-40:                             M680x0 Options.
-* m68020-60:                             M680x0 Options.
-* m68030:                                M680x0 Options.
-* m68040:                                M680x0 Options.
-* m68060:                                M680x0 Options.
-* m6811:                                 M68hc1x Options.
-* m6812:                                 M68hc1x Options.
-* m68881:                                M680x0 Options.
-* m68hc11:                               M68hc1x Options.
-* m68hc12:                               M68hc1x Options.
-* m8-bit:                                CRIS Options.
-* m88000:                                M88K Options.
-* m88100:                                M88K Options.
-* m88110:                                M88K Options.
-* m96bit-long-double:                    i386 and x86-64 Options.
-* mabi-mmixware:                         MMIX Options.
-* mabi=32:                               MIPS Options.
-* mabi=64:                               MIPS Options.
-* mabi=altivec:                          RS/6000 and PowerPC Options.
-* mabi=eabi:                             MIPS Options.
-* mabi=gnu:                              MMIX Options.
-* mabi=n32:                              MIPS Options.
-* mabi=no-altivec:                       RS/6000 and PowerPC Options.
-* mabi=o64:                              MIPS Options.
-* mabicalls:                             MIPS Options.
-* mabort-on-noreturn:                    ARM Options.
-* mabshi:                                PDP-11 Options.
-* mac0:                                  PDP-11 Options.
-* maccumulate-outgoing-args:             i386 and x86-64 Options.
-* mads:                                  RS/6000 and PowerPC Options.
-* maix-struct-return:                    RS/6000 and PowerPC Options.
-* maix32:                                RS/6000 and PowerPC Options.
-* maix64:                                RS/6000 and PowerPC Options.
-* malign-300:                            H8/300 Options.
-* malign-double:                         i386 and x86-64 Options.
-* malign-int:                            M680x0 Options.
-* malignment-traps:                      ARM Options.
-* malpha-as:                             DEC Alpha Options.
-* maltivec:                              RS/6000 and PowerPC Options.
-* mam33:                                 MN10300 Options.
-* maout:                                 CRIS Options.
-* mapcs:                                 ARM Options.
-* mapcs-26:                              ARM Options.
-* mapcs-32:                              ARM Options.
-* mapcs-frame:                           ARM Options.
-* mapp-regs:                             SPARC Options.
-* march <1>:                             CRIS Options.
-* march <2>:                             HPPA Options.
-* march <3>:                             i386 and x86-64 Options.
-* march <4>:                             MIPS Options.
-* march:                                 ARM Options.
-* margcount:                             Convex Options.
-* masm-compat:                           Intel 960 Options.
-* masm-optimize:                         D30V Options.
-* masm=DIALECT:                          i386 and x86-64 Options.
-* mauto-incdec:                          M68hc1x Options.
-* mauto-pic:                             IA-64 Options.
-* mb:                                    SH Options.
-* mb-step:                               IA-64 Options.
-* mbackchain:                            S/390 and zSeries Options.
-* mbase-addresses:                       MMIX Options.
-* mbcopy:                                PDP-11 Options.
-* mbig <1>:                              TMS320C3x/C4x Options.
-* mbig:                                  RS/6000 and PowerPC Options.
-* mbig-endian <1>:                       Xtensa Options.
-* mbig-endian <2>:                       IA-64 Options.
-* mbig-endian <3>:                       MCore Options.
-* mbig-endian <4>:                       RS/6000 and PowerPC Options.
-* mbig-endian:                           ARM Options.
-* mbig-memory:                           TMS320C3x/C4x Options.
-* mbig-pic:                              M88K Options.
-* mbig-switch <1>:                       V850 Options.
-* mbig-switch:                           HPPA Options.
-* mbigtable:                             SH Options.
-* mbit-align:                            RS/6000 and PowerPC Options.
-* mbitfield <1>:                         NS32K Options.
-* mbitfield:                             M680x0 Options.
-* mbk:                                   TMS320C3x/C4x Options.
-* mbooleans:                             Xtensa Options.
-* mbranch-cheap:                         PDP-11 Options.
-* mbranch-cost:                          D30V Options.
-* mbranch-expensive:                     PDP-11 Options.
-* mbranch-predict:                       MMIX Options.
-* mbroken-saverestore:                   SPARC Options.
-* mbsd:                                  ARM Options.
-* mbuild-constants:                      DEC Alpha Options.
-* mbw:                                   AMD29K Options.
-* mbwx:                                  DEC Alpha Options.
-* mc1:                                   Convex Options.
-* mc2:                                   Convex Options.
-* mc300:                                 Clipper Options.
-* mc32:                                  Convex Options.
-* mc34:                                  Convex Options.
-* mc38:                                  Convex Options.
-* mc400:                                 Clipper Options.
-* mc68000:                               M680x0 Options.
-* mc68020:                               M680x0 Options.
-* mca:                                   Intel 960 Options.
-* mcall-aix:                             RS/6000 and PowerPC Options.
-* mcall-gnu:                             RS/6000 and PowerPC Options.
-* mcall-lib-mul:                         RT Options.
-* mcall-linux:                           RS/6000 and PowerPC Options.
-* mcall-netbsd:                          RS/6000 and PowerPC Options.
-* mcall-prologues:                       AVR Options.
-* mcall-solaris:                         RS/6000 and PowerPC Options.
-* mcall-sysv:                            RS/6000 and PowerPC Options.
-* mcall-sysv-eabi:                       RS/6000 and PowerPC Options.
-* mcall-sysv-noeabi:                     RS/6000 and PowerPC Options.
-* mcallee-super-interworking:            ARM Options.
-* mcaller-super-interworking:            ARM Options.
-* mcallgraph-data:                       MCore Options.
-* mcc-init:                              CRIS Options.
-* mcf:                                   Intel 960 Options.
-* mcheck-zero-division:                  M88K Options.
-* mcix:                                  DEC Alpha Options.
-* mcmodel=embmedany:                     SPARC Options.
-* mcmodel=kernel:                        i386 and x86-64 Options.
-* mcmodel=large:                         i386 and x86-64 Options.
-* mcmodel=medany:                        SPARC Options.
-* mcmodel=medium:                        i386 and x86-64 Options.
-* mcmodel=medlow:                        SPARC Options.
-* mcmodel=medmid:                        SPARC Options.
-* mcmodel=small:                         i386 and x86-64 Options.
-* mcode-align:                           Intel 960 Options.
-* mcode-model=large:                     M32R/D Options.
-* mcode-model=medium:                    M32R/D Options.
-* mcode-model=small:                     M32R/D Options.
-* mcomplex-addr:                         Intel 960 Options.
-* mcond-exec:                            D30V Options.
-* mconst-align:                          CRIS Options.
-* mconstant-gp:                          IA-64 Options.
-* mcpu <1>:                              CRIS Options.
-* mcpu <2>:                              ARC Options.
-* mcpu <3>:                              TMS320C3x/C4x Options.
-* mcpu <4>:                              DEC Alpha Options.
-* mcpu <5>:                              i386 and x86-64 Options.
-* mcpu <6>:                              MIPS Options.
-* mcpu <7>:                              RS/6000 and PowerPC Options.
-* mcpu <8>:                              ARM Options.
-* mcpu:                                  SPARC Options.
-* mcpu32:                                M680x0 Options.
-* mcypress:                              SPARC Options.
-* MD:                                    Preprocessor Options.
-* mdalign:                               SH Options.
-* mdata:                                 ARC Options.
-* mdata-align:                           CRIS Options.
-* mdb:                                   TMS320C3x/C4x Options.
-* mdebug:                                S/390 and zSeries Options.
-* mdec-asm:                              PDP-11 Options.
-* mdensity:                              Xtensa Options.
-* mdisable-fpregs:                       HPPA Options.
-* mdisable-indexing:                     HPPA Options.
-* mdiv:                                  MCore Options.
-* mdouble-float:                         MIPS Options.
-* mdp-isr-reload:                        TMS320C3x/C4x Options.
-* mdw:                                   AMD29K Options.
-* mdwarf2-asm:                           IA-64 Options.
-* meabi:                                 RS/6000 and PowerPC Options.
-* melf <1>:                              MMIX Options.
-* melf:                                  CRIS Options.
-* melinux:                               CRIS Options.
-* melinux-stacksize:                     CRIS Options.
-* memb:                                  RS/6000 and PowerPC Options.
-* membedded-data:                        MIPS Options.
-* membedded-pic:                         MIPS Options.
-* mentry:                                MIPS Options.
-* mep:                                   V850 Options.
-* mepsilon:                              MMIX Options.
-* metrax100:                             CRIS Options.
-* metrax4:                               CRIS Options.
-* mexplicit-relocs:                      DEC Alpha Options.
-* mextmem:                               D30V Options.
-* mextmemory:                            D30V Options.
-* MF:                                    Preprocessor Options.
-* mfast-fix:                             TMS320C3x/C4x Options.
-* mfast-indirect-calls:                  HPPA Options.
-* mfaster-structs:                       SPARC Options.
-* mfix:                                  DEC Alpha Options.
-* mfix7000:                              MIPS Options.
-* mfixed-range:                          IA-64 Options.
-* mflat:                                 SPARC Options.
-* mfloat-ieee:                           DEC Alpha Options.
-* mfloat-vax:                            DEC Alpha Options.
-* mfloat32:                              PDP-11 Options.
-* mfloat64:                              PDP-11 Options.
-* mflush-func:                           MIPS Options.
-* mfmovd:                                SH Options.
-* mfp:                                   ARM Options.
-* mfp-arg-in-fpregs:                     RT Options.
-* mfp-arg-in-gregs:                      RT Options.
-* mfp-reg:                               DEC Alpha Options.
-* mfp-rounding-mode:                     DEC Alpha Options.
-* mfp-trap-mode:                         DEC Alpha Options.
-* mfp32:                                 MIPS Options.
-* mfp64:                                 MIPS Options.
-* mfpa:                                  M680x0 Options.
-* mfpe:                                  ARM Options.
-* mfpu <1>:                              PDP-11 Options.
-* mfpu:                                  SPARC Options.
-* mfull-fp-blocks:                       RT Options.
-* mfull-toc:                             RS/6000 and PowerPC Options.
-* mfused-madd <1>:                       Xtensa Options.
-* mfused-madd <2>:                       MIPS Options.
-* mfused-madd:                           RS/6000 and PowerPC Options.
-* mg:                                    VAX Options.
-* MG:                                    Preprocessor Options.
-* mgas <1>:                              DEC Alpha Options.
-* mgas <2>:                              HPPA Options.
-* mgas:                                  MIPS Options.
-* mgnu:                                  VAX Options.
-* mgnu-as:                               IA-64 Options.
-* mgnu-ld:                               IA-64 Options.
-* mgotplt:                               CRIS Options.
-* mgp32:                                 MIPS Options.
-* mgp64:                                 MIPS Options.
-* mgpopt:                                MIPS Options.
-* mh:                                    H8/300 Options.
-* mhalf-pic:                             MIPS Options.
-* mhandle-large-shift:                   M88K Options.
-* mhard-float <1>:                       Xtensa Options.
-* mhard-float <2>:                       S/390 and zSeries Options.
-* mhard-float <3>:                       MIPS Options.
-* mhard-float <4>:                       RS/6000 and PowerPC Options.
-* mhard-float <5>:                       ARM Options.
-* mhard-float:                           SPARC Options.
-* mhard-quad-float:                      SPARC Options.
-* mhardlit:                              MCore Options.
-* mhc-struct-return <1>:                 Interoperation.
-* mhc-struct-return:                     RT Options.
-* mhimem:                                NS32K Options.
-* mhitachi:                              SH Options.
-* mic-compat:                            Intel 960 Options.
-* mic2.0-compat:                         Intel 960 Options.
-* mic3.0-compat:                         Intel 960 Options.
-* midentify-revision:                    M88K Options.
-* mieee <1>:                             SH Options.
-* mieee:                                 DEC Alpha Options.
-* mieee-conformant:                      DEC Alpha Options.
-* mieee-fp:                              i386 and x86-64 Options.
-* mieee-with-inexact:                    DEC Alpha Options.
-* mimpure-text:                          AMD29K Options.
-* min-line-mul:                          RT Options.
-* minit-stack:                           AVR Options.
-* minline-all-stringops:                 i386 and x86-64 Options.
-* minline-divide-max-throughput:         IA-64 Options.
-* minline-divide-min-latency:            IA-64 Options.
-* mint16:                                PDP-11 Options.
-* mint32 <1>:                            PDP-11 Options.
-* mint32:                                H8/300 Options.
-* mint64:                                MIPS Options.
-* mintel-asm:                            Intel 960 Options.
-* mips1:                                 MIPS Options.
-* mips16:                                MIPS Options.
-* mips2:                                 MIPS Options.
-* mips3:                                 MIPS Options.
-* mips4:                                 MIPS Options.
-* misize:                                SH Options.
-* mjump-in-delay:                        HPPA Options.
-* mka:                                   Intel 960 Options.
-* mkb:                                   Intel 960 Options.
-* mkernel-registers:                     AMD29K Options.
-* mknuthdiv:                             MMIX Options.
-* ml:                                    SH Options.
-* mlarge:                                AMD29K Options.
-* mlarge-data:                           DEC Alpha Options.
-* mleaf-procedures:                      Intel 960 Options.
-* mlibfuncs:                             MMIX Options.
-* mlinker-opt:                           HPPA Options.
-* mlinux:                                CRIS Options.
-* mlittle:                               RS/6000 and PowerPC Options.
-* mlittle-endian <1>:                    Xtensa Options.
-* mlittle-endian <2>:                    IA-64 Options.
-* mlittle-endian <3>:                    MCore Options.
-* mlittle-endian <4>:                    RS/6000 and PowerPC Options.
-* mlittle-endian <5>:                    ARM Options.
-* mlittle-endian:                        SPARC Options.
-* mlive-g0:                              SPARC Options.
-* mlong-calls <1>:                       V850 Options.
-* mlong-calls <2>:                       MIPS Options.
-* mlong-calls:                           ARM Options.
-* mlong-double-64:                       Intel 960 Options.
-* mlong-load-store:                      HPPA Options.
-* mlong32 <1>:                           MIPS Options.
-* mlong32:                               Convex Options.
-* mlong64 <1>:                           MIPS Options.
-* mlong64:                               Convex Options.
-* mlongcalls:                            Xtensa Options.
-* mloop-unsigned:                        TMS320C3x/C4x Options.
-* MM:                                    Preprocessor Options.
-* mmac16:                                Xtensa Options.
-* mmad:                                  MIPS Options.
-* mmangle-cpu:                           ARC Options.
-* mmax:                                  DEC Alpha Options.
-* mmax-stack-frame:                      CRIS Options.
-* mmc:                                   Intel 960 Options.
-* mmcu:                                  AVR Options.
-* MMD:                                   Preprocessor Options.
-* mmemcpy:                               MIPS Options.
-* mmemory-latency:                       DEC Alpha Options.
-* mmemparm:                              TMS320C3x/C4x Options.
-* mminimal-toc:                          RS/6000 and PowerPC Options.
-* mminimum-fp-blocks:                    RT Options.
-* mminmax:                               Xtensa Options.
-* mmips-as:                              MIPS Options.
-* mmips-tfile:                           MIPS Options.
-* mmmx:                                  i386 and x86-64 Options.
-* mmpyi:                                 TMS320C3x/C4x Options.
-* mmul16:                                Xtensa Options.
-* mmul32:                                Xtensa Options.
-* mmult-bug:                             MN10300 Options.
-* mmulti-add:                            NS32K Options.
-* mmultiple:                             RS/6000 and PowerPC Options.
-* mmvcle:                                S/390 and zSeries Options.
-* mmvme:                                 RS/6000 and PowerPC Options.
-* mnbw:                                  AMD29K Options.
-* mndw:                                  AMD29K Options.
-* mnew-mnemonics:                        RS/6000 and PowerPC Options.
-* mno-3dnow:                             i386 and x86-64 Options.
-* mno-4byte-functions:                   MCore Options.
-* mno-abicalls:                          MIPS Options.
-* mno-abshi:                             PDP-11 Options.
-* mno-ac0:                               PDP-11 Options.
-* mno-align-double:                      i386 and x86-64 Options.
-* mno-align-int:                         M680x0 Options.
-* mno-align-stringops:                   i386 and x86-64 Options.
-* mno-alignment-traps:                   ARM Options.
-* mno-altivec:                           RS/6000 and PowerPC Options.
-* mno-am33:                              MN10300 Options.
-* mno-app-regs:                          SPARC Options.
-* mno-asm-optimize:                      D30V Options.
-* mno-backchain:                         S/390 and zSeries Options.
-* mno-base-addresses:                    MMIX Options.
-* mno-bit-align:                         RS/6000 and PowerPC Options.
-* mno-bk:                                TMS320C3x/C4x Options.
-* mno-booleans:                          Xtensa Options.
-* mno-branch-predict:                    MMIX Options.
-* mno-bwx:                               DEC Alpha Options.
-* mno-callgraph-data:                    MCore Options.
-* mno-check-zero-division:               M88K Options.
-* mno-cix:                               DEC Alpha Options.
-* mno-code-align:                        Intel 960 Options.
-* mno-complex-addr:                      Intel 960 Options.
-* mno-const-align:                       CRIS Options.
-* mno-crt0:                              MN10300 Options.
-* mno-data-align:                        CRIS Options.
-* mno-db:                                TMS320C3x/C4x Options.
-* mno-debug:                             S/390 and zSeries Options.
-* mno-density:                           Xtensa Options.
-* mno-div:                               MCore Options.
-* mno-dwarf2-asm:                        IA-64 Options.
-* mno-eabi:                              RS/6000 and PowerPC Options.
-* mno-embedded-data:                     MIPS Options.
-* mno-embedded-pic:                      MIPS Options.
-* mno-ep:                                V850 Options.
-* mno-epsilon:                           MMIX Options.
-* mno-explicit-relocs:                   DEC Alpha Options.
-* mno-fancy-math-387:                    i386 and x86-64 Options.
-* mno-fast-fix:                          TMS320C3x/C4x Options.
-* mno-faster-structs:                    SPARC Options.
-* mno-fix:                               DEC Alpha Options.
-* mno-flat:                              SPARC Options.
-* mno-float32:                           PDP-11 Options.
-* mno-float64:                           PDP-11 Options.
-* mno-fp-in-toc:                         RS/6000 and PowerPC Options.
-* mno-fp-regs:                           DEC Alpha Options.
-* mno-fp-ret-in-387:                     i386 and x86-64 Options.
-* mno-fpu:                               SPARC Options.
-* mno-fused-madd <1>:                    Xtensa Options.
-* mno-fused-madd <2>:                    MIPS Options.
-* mno-fused-madd:                        RS/6000 and PowerPC Options.
-* mno-gnu-as:                            IA-64 Options.
-* mno-gnu-ld:                            IA-64 Options.
-* mno-gotplt:                            CRIS Options.
-* mno-gpopt:                             MIPS Options.
-* mno-half-pic:                          MIPS Options.
-* mno-hardlit:                           MCore Options.
-* mno-ieee-fp:                           i386 and x86-64 Options.
-* mno-impure-text:                       AMD29K Options.
-* mno-int16:                             PDP-11 Options.
-* mno-int32:                             PDP-11 Options.
-* mno-interrupts:                        AVR Options.
-* mno-knuthdiv:                          MMIX Options.
-* mno-leaf-procedures:                   Intel 960 Options.
-* mno-libfuncs:                          MMIX Options.
-* mno-long-calls <1>:                    V850 Options.
-* mno-long-calls <2>:                    MIPS Options.
-* mno-long-calls:                        ARM Options.
-* mno-longcalls:                         Xtensa Options.
-* mno-loop-unsigned:                     TMS320C3x/C4x Options.
-* mno-mac16:                             Xtensa Options.
-* mno-mad:                               MIPS Options.
-* mno-max:                               DEC Alpha Options.
-* mno-memcpy:                            MIPS Options.
-* mno-minmax:                            Xtensa Options.
-* mno-mips-tfile:                        MIPS Options.
-* mno-mips16:                            MIPS Options.
-* mno-mmx:                               i386 and x86-64 Options.
-* mno-mpyi:                              TMS320C3x/C4x Options.
-* mno-mul16:                             Xtensa Options.
-* mno-mul32:                             Xtensa Options.
-* mno-mult-bug:                          MN10300 Options.
-* mno-multiple:                          RS/6000 and PowerPC Options.
-* mno-multm:                             AMD29K Options.
-* mno-mvcle:                             S/390 and zSeries Options.
-* mno-nsa:                               Xtensa Options.
-* mno-ocs-debug-info:                    M88K Options.
-* mno-ocs-frame-position:                M88K Options.
-* mno-optimize-arg-area:                 M88K Options.
-* mno-parallel-insns:                    TMS320C3x/C4x Options.
-* mno-parallel-mpy:                      TMS320C3x/C4x Options.
-* mno-pic:                               IA-64 Options.
-* mno-power:                             RS/6000 and PowerPC Options.
-* mno-power2:                            RS/6000 and PowerPC Options.
-* mno-powerpc:                           RS/6000 and PowerPC Options.
-* mno-powerpc-gfxopt:                    RS/6000 and PowerPC Options.
-* mno-powerpc-gpopt:                     RS/6000 and PowerPC Options.
-* mno-powerpc64:                         RS/6000 and PowerPC Options.
-* mno-prolog-function:                   V850 Options.
-* mno-prologue-epilogue:                 CRIS Options.
-* mno-prototype:                         RS/6000 and PowerPC Options.
-* mno-push-args:                         i386 and x86-64 Options.
-* mno-register-names:                    IA-64 Options.
-* mno-regnames:                          RS/6000 and PowerPC Options.
-* mno-relax-immediate:                   MCore Options.
-* mno-relocatable:                       RS/6000 and PowerPC Options.
-* mno-relocatable-lib:                   RS/6000 and PowerPC Options.
-* mno-reuse-arg-regs:                    AMD29K Options.
-* mno-rnames:                            MIPS Options.
-* mno-rptb:                              TMS320C3x/C4x Options.
-* mno-rpts:                              TMS320C3x/C4x Options.
-* mno-sched-prolog:                      ARM Options.
-* mno-sdata <1>:                         IA-64 Options.
-* mno-sdata:                             RS/6000 and PowerPC Options.
-* mno-serialize-volatile <1>:            Interoperation.
-* mno-serialize-volatile <2>:            Xtensa Options.
-* mno-serialize-volatile:                M88K Options.
-* mno-sext:                              Xtensa Options.
-* mno-short-load-bytes:                  ARM Options.
-* mno-short-load-words:                  ARM Options.
-* mno-side-effects:                      CRIS Options.
-* mno-slow-bytes:                        MCore Options.
-* mno-small-exec:                        S/390 and zSeries Options.
-* mno-soft-float:                        DEC Alpha Options.
-* mno-space-regs:                        HPPA Options.
-* mno-split:                             PDP-11 Options.
-* mno-split-addresses:                   MIPS Options.
-* mno-sse:                               i386 and x86-64 Options.
-* mno-stack-align:                       CRIS Options.
-* mno-stack-bias:                        SPARC Options.
-* mno-stack-check:                       AMD29K Options.
-* mno-stats:                             MIPS Options.
-* mno-storem-bug:                        AMD29K Options.
-* mno-strict-align <1>:                  Intel 960 Options.
-* mno-strict-align <2>:                  RS/6000 and PowerPC Options.
-* mno-strict-align:                      M680x0 Options.
-* mno-string:                            RS/6000 and PowerPC Options.
-* mno-sum-in-toc:                        RS/6000 and PowerPC Options.
-* mno-svr3-shlib:                        i386 and x86-64 Options.
-* mno-symrename:                         ARM Options.
-* mno-tablejump:                         AVR Options.
-* mno-tail-call:                         Intel 960 Options.
-* mno-target-align:                      Xtensa Options.
-* mno-text-section-literals:             Xtensa Options.
-* mno-toc:                               RS/6000 and PowerPC Options.
-* mno-toplevel-symbols:                  MMIX Options.
-* mno-unaligned-doubles:                 SPARC Options.
-* mno-underscores:                       M88K Options.
-* mno-uninit-const-in-rodata:            MIPS Options.
-* mno-update:                            RS/6000 and PowerPC Options.
-* mno-volatile-asm-stop:                 IA-64 Options.
-* mno-wide-bitfields:                    MCore Options.
-* mno-xl-call:                           RS/6000 and PowerPC Options.
-* mno-zero-extend:                       MMIX Options.
-* mnoargcount:                           Convex Options.
-* mnobitfield <1>:                       NS32K Options.
-* mnobitfield:                           M680x0 Options.
-* mnohc-struct-return:                   RT Options.
-* mnohimem:                              NS32K Options.
-* mnomacsave:                            SH Options.
-* mnomulti-add:                          NS32K Options.
-* mnop-fun-dllimport:                    ARM Options.
-* mnoregparam:                           NS32K Options.
-* mnormal:                               AMD29K Options.
-* mnosb:                                 NS32K Options.
-* mnsa:                                  Xtensa Options.
-* mnumerics:                             Intel 960 Options.
-* mocs-debug-info:                       M88K Options.
-* mocs-frame-position:                   M88K Options.
-* mold-align:                            Intel 960 Options.
-* mold-mnemonics:                        RS/6000 and PowerPC Options.
-* momit-leaf-frame-pointer:              i386 and x86-64 Options.
-* monchip:                               D30V Options.
-* moptimize-arg-area:                    M88K Options.
-* MP:                                    Preprocessor Options.
-* mpa-risc-1-0:                          HPPA Options.
-* mpa-risc-1-1:                          HPPA Options.
-* mpa-risc-2-0:                          HPPA Options.
-* mpadstruct:                            SH Options.
-* mparallel-insns:                       TMS320C3x/C4x Options.
-* mparallel-mpy:                         TMS320C3x/C4x Options.
-* mparanoid:                             TMS320C3x/C4x Options.
-* mpcrel:                                M680x0 Options.
-* mpdebug:                               CRIS Options.
-* mpe:                                   RS/6000 and PowerPC Options.
-* mpentium:                              i386 and x86-64 Options.
-* mpentiumpro:                           i386 and x86-64 Options.
-* mpic-register:                         ARM Options.
-* mpoke-function-name:                   ARM Options.
-* mportable-runtime:                     HPPA Options.
-* mpower:                                RS/6000 and PowerPC Options.
-* mpower2:                               RS/6000 and PowerPC Options.
-* mpowerpc:                              RS/6000 and PowerPC Options.
-* mpowerpc-gfxopt:                       RS/6000 and PowerPC Options.
-* mpowerpc-gpopt:                        RS/6000 and PowerPC Options.
-* mpowerpc64:                            RS/6000 and PowerPC Options.
-* mprefergot:                            SH Options.
-* mpreferred-stack-boundary:             i386 and x86-64 Options.
-* mprolog-function:                      V850 Options.
-* mprologue-epilogue:                    CRIS Options.
-* mprototype:                            RS/6000 and PowerPC Options.
-* mpush-args:                            i386 and x86-64 Options.
-* MQ:                                    Preprocessor Options.
-* mregister-names:                       IA-64 Options.
-* mregnames:                             RS/6000 and PowerPC Options.
-* mregparam:                             NS32K Options.
-* mregparm <1>:                          TMS320C3x/C4x Options.
-* mregparm:                              i386 and x86-64 Options.
-* mrelax <1>:                            SH Options.
-* mrelax <2>:                            H8/300 Options.
-* mrelax <3>:                            MN10300 Options.
-* mrelax:                                MN10200 Options.
-* mrelax-immediate:                      MCore Options.
-* mrelocatable:                          RS/6000 and PowerPC Options.
-* mrelocatable-lib:                      RS/6000 and PowerPC Options.
-* mreuse-arg-regs:                       AMD29K Options.
-* mrnames:                               MIPS Options.
-* mrodata:                               ARC Options.
-* mrptb:                                 TMS320C3x/C4x Options.
-* mrpts:                                 TMS320C3x/C4x Options.
-* mrtd <1>:                              Function Attributes.
-* mrtd <2>:                              NS32K Options.
-* mrtd <3>:                              i386 and x86-64 Options.
-* mrtd:                                  M680x0 Options.
-* ms:                                    H8/300 Options.
-* ms2600:                                H8/300 Options.
-* msa:                                   Intel 960 Options.
-* msb <1>:                               NS32K Options.
-* msb:                                   Intel 960 Options.
-* mschedule:                             HPPA Options.
-* msda:                                  V850 Options.
-* msdata <1>:                            IA-64 Options.
-* msdata:                                RS/6000 and PowerPC Options.
-* msdata-data:                           RS/6000 and PowerPC Options.
-* msdata=default:                        RS/6000 and PowerPC Options.
-* msdata=eabi:                           RS/6000 and PowerPC Options.
-* msdata=none <1>:                       RS/6000 and PowerPC Options.
-* msdata=none:                           M32R/D Options.
-* msdata=sdata:                          M32R/D Options.
-* msdata=sysv:                           RS/6000 and PowerPC Options.
-* msdata=use:                            M32R/D Options.
-* mserialize-volatile <1>:               Xtensa Options.
-* mserialize-volatile:                   M88K Options.
-* msext:                                 Xtensa Options.
-* mshort <1>:                            M68hc1x Options.
-* mshort:                                M680x0 Options.
-* mshort-data:                           M88K Options.
-* mshort-load-bytes:                     ARM Options.
-* mshort-load-words:                     ARM Options.
-* msim <1>:                              Xstormy16 Options.
-* msim:                                  RS/6000 and PowerPC Options.
-* msingle-float:                         MIPS Options.
-* msingle-pic-base:                      ARM Options.
-* msize:                                 AVR Options.
-* mslow-bytes:                           MCore Options.
-* msmall <1>:                            TMS320C3x/C4x Options.
-* msmall:                                AMD29K Options.
-* msmall-data:                           DEC Alpha Options.
-* msmall-exec:                           S/390 and zSeries Options.
-* msmall-memory:                         TMS320C3x/C4x Options.
-* msoft-float <1>:                       Xtensa Options.
-* msoft-float <2>:                       PDP-11 Options.
-* msoft-float <3>:                       S/390 and zSeries Options.
-* msoft-float <4>:                       NS32K Options.
-* msoft-float <5>:                       DEC Alpha Options.
-* msoft-float <6>:                       Intel 960 Options.
-* msoft-float <7>:                       HPPA Options.
-* msoft-float <8>:                       i386 and x86-64 Options.
-* msoft-float <9>:                       MIPS Options.
-* msoft-float <10>:                      RS/6000 and PowerPC Options.
-* msoft-float <11>:                      ARM Options.
-* msoft-float <12>:                      AMD29K Options.
-* msoft-float <13>:                      SPARC Options.
-* msoft-float:                           M680x0 Options.
-* msoft-quad-float:                      SPARC Options.
-* msoft-reg-count:                       M68hc1x Options.
-* mspace <1>:                            V850 Options.
-* mspace:                                SH Options.
-* msparclite:                            SPARC Options.
-* msplit:                                PDP-11 Options.
-* msplit-addresses:                      MIPS Options.
-* msse:                                  i386 and x86-64 Options.
-* mstack-align:                          CRIS Options.
-* mstack-bias:                           SPARC Options.
-* mstack-check:                          AMD29K Options.
-* mstats:                                MIPS Options.
-* mstorem-bug:                           AMD29K Options.
-* mstrict-align <1>:                     Intel 960 Options.
-* mstrict-align <2>:                     RS/6000 and PowerPC Options.
-* mstrict-align:                         M680x0 Options.
-* mstring:                               RS/6000 and PowerPC Options.
-* mstructure-size-boundary:              ARM Options.
-* msupersparc:                           SPARC Options.
-* msvr3:                                 M88K Options.
-* msvr3-shlib:                           i386 and x86-64 Options.
-* msvr4:                                 M88K Options.
-* msvr4-struct-return:                   RS/6000 and PowerPC Options.
-* MT:                                    Preprocessor Options.
-* mtail-call:                            Intel 960 Options.
-* mtarget-align:                         Xtensa Options.
-* mtda:                                  V850 Options.
-* mtext:                                 ARC Options.
-* mtext-section-literals:                Xtensa Options.
-* mthreads:                              i386 and x86-64 Options.
-* mthumb:                                ARM Options.
-* mthumb-interwork:                      ARM Options.
-* mti:                                   TMS320C3x/C4x Options.
-* mtiny-stack:                           AVR Options.
-* mtoc:                                  RS/6000 and PowerPC Options.
-* mtoplevel-symbols:                     MMIX Options.
-* mtpcs-frame:                           ARM Options.
-* mtpcs-leaf-frame:                      ARM Options.
-* mtrap-large-shift:                     M88K Options.
-* mtrap-precision:                       DEC Alpha Options.
-* mtune <1>:                             CRIS Options.
-* mtune <2>:                             DEC Alpha Options.
-* mtune <3>:                             MIPS Options.
-* mtune <4>:                             RS/6000 and PowerPC Options.
-* mtune <5>:                             ARM Options.
-* mtune:                                 SPARC Options.
-* munaligned-doubles:                    SPARC Options.
-* muninit-const-in-rodata:               MIPS Options.
-* munix:                                 VAX Options.
-* munix-asm:                             PDP-11 Options.
-* mupdate:                               RS/6000 and PowerPC Options.
-* muse-div-instruction:                  M88K Options.
-* muser-registers:                       AMD29K Options.
-* musermode:                             SH Options.
-* mv8:                                   SPARC Options.
-* mv850:                                 V850 Options.
-* mversion-03.00:                        M88K Options.
-* mvms-return-codes:                     DEC Alpha/VMS Options.
-* mvolatile-asm-stop:                    IA-64 Options.
-* mvolatile-cache:                       Convex Options.
-* mvolatile-nocache:                     Convex Options.
-* mvxworks:                              RS/6000 and PowerPC Options.
-* mwarn-passed-structs:                  M88K Options.
-* mwide-bitfields:                       MCore Options.
-* mwords-little-endian:                  ARM Options.
-* mxl-call:                              RS/6000 and PowerPC Options.
-* mxopen:                                ARM Options.
-* myellowknife:                          RS/6000 and PowerPC Options.
-* mzda:                                  V850 Options.
-* mzero-extend:                          MMIX Options.
-* no-crt0:                               MIPS Options.
-* no-integrated-cpp:                     C Dialect Options.
-* no-red-zone:                           i386 and x86-64 Options.
-* noasmopt:                              Interoperation.
-* nocpp:                                 MIPS Options.
-* nodefaultlibs:                         Link Options.
-* nostartfiles:                          Link Options.
-* nostdinc:                              Preprocessor Options.
-* nostdinc++ <1>:                        Preprocessor Options.
-* nostdinc++:                            C++ Dialect Options.
-* nostdlib:                              Link Options.
-* o:                                     Preprocessor Options.
-* O:                                     Optimize Options.
-* o:                                     Overall Options.
-* O0:                                    Optimize Options.
-* O1:                                    Optimize Options.
-* O2:                                    Optimize Options.
-* O3:                                    Optimize Options.
-* Os:                                    Optimize Options.
-* P:                                     Preprocessor Options.
-* p:                                     Debugging Options.
-* param:                                 Optimize Options.
-* pass-exit-codes:                       Overall Options.
-* pedantic <1>:                          Warnings and Errors.
-* pedantic <2>:                          Alternate Keywords.
-* pedantic <3>:                          C Extensions.
-* pedantic <4>:                          Preprocessor Options.
-* pedantic <5>:                          Warning Options.
-* pedantic:                              Standards.
-* pedantic-errors <1>:                   Warnings and Errors.
-* pedantic-errors <2>:                   Non-bugs.
-* pedantic-errors <3>:                   Actual Bugs.
-* pedantic-errors <4>:                   Preprocessor Options.
-* pedantic-errors <5>:                   Warning Options.
-* pedantic-errors:                       Standards.
-* pg:                                    Debugging Options.
-* pipe:                                  Overall Options.
-* print-file-name:                       Debugging Options.
-* print-libgcc-file-name:                Debugging Options.
-* print-multi-directory:                 Debugging Options.
-* print-multi-lib:                       Debugging Options.
-* print-prog-name:                       Debugging Options.
-* print-search-dirs:                     Debugging Options.
-* pthread:                               RS/6000 and PowerPC Options.
-* Q:                                     Debugging Options.
-* Qn:                                    System V Options.
-* Qy:                                    System V Options.
-* remap:                                 Preprocessor Options.
-* s:                                     Link Options.
-* S <1>:                                 Link Options.
-* S:                                     Overall Options.
-* save-temps:                            Debugging Options.
-* shared:                                Link Options.
-* shared-libgcc:                         Link Options.
-* sim:                                   CRIS Options.
-* sim2:                                  CRIS Options.
-* specs:                                 Directory Options.
-* static:                                Link Options.
-* static-libgcc:                         Link Options.
-* std <1>:                               Non-bugs.
-* std <2>:                               Other Builtins.
-* std <3>:                               C Dialect Options.
-* std:                                   Standards.
-* std=:                                  Preprocessor Options.
-* symbolic:                              Link Options.
-* target-help <1>:                       Preprocessor Options.
-* target-help:                           Overall Options.
-* time:                                  Debugging Options.
-* traditional <1>:                       Non-bugs.
-* traditional <2>:                       Incompatibilities.
-* traditional <3>:                       Preprocessor Options.
-* traditional <4>:                       C Dialect Options.
-* traditional:                           Standards.
-* traditional-cpp:                       C Dialect Options.
-* trigraphs <1>:                         Preprocessor Options.
-* trigraphs:                             C Dialect Options.
-* u:                                     Link Options.
-* U:                                     Preprocessor Options.
-* undef:                                 Preprocessor Options.
-* V:                                     Target Options.
-* v <1>:                                 Preprocessor Options.
-* v:                                     Overall Options.
-* version <1>:                           Preprocessor Options.
-* version:                               Overall Options.
-* W:                                     Incompatibilities.
-* w:                                     Preprocessor Options.
-* W:                                     Warning Options.
-* w:                                     Warning Options.
-* Wa:                                    Assembler Options.
-* Wabi:                                  C++ Dialect Options.
-* Waggregate-return:                     Warning Options.
-* Wall <1>:                              Standard Libraries.
-* Wall <2>:                              Preprocessor Options.
-* Wall:                                  Warning Options.
-* Wbad-function-cast:                    Warning Options.
-* Wcast-align:                           Warning Options.
-* Wcast-qual:                            Warning Options.
-* Wchar-subscripts:                      Warning Options.
-* Wcomment <1>:                          Preprocessor Options.
-* Wcomment:                              Warning Options.
-* Wcomments:                             Preprocessor Options.
-* Wconversion <1>:                       Protoize Caveats.
-* Wconversion:                           Warning Options.
-* Wctor-dtor-privacy:                    C++ Dialect Options.
-* Wdisabled-optimization:                Warning Options.
-* Wdiv-by-zero:                          Warning Options.
-* Weffc++:                               C++ Dialect Options.
-* Werror <1>:                            Preprocessor Options.
-* Werror:                                Warning Options.
-* Werror-implicit-function-declaration:  Warning Options.
-* Wfloat-equal:                          Warning Options.
-* Wformat <1>:                           Function Attributes.
-* Wformat:                               Warning Options.
-* Wformat-nonliteral <1>:                Function Attributes.
-* Wformat-nonliteral:                    Warning Options.
-* Wformat-security:                      Warning Options.
-* Wformat=2:                             Warning Options.
-* Wimplicit:                             Warning Options.
-* Wimplicit-function-declaration:        Warning Options.
-* Wimplicit-int:                         Warning Options.
-* Wimport:                               Preprocessor Options.
-* Winline <1>:                           Inline.
-* Winline:                               Warning Options.
-* Wl:                                    Link Options.
-* Wlarger-than:                          Warning Options.
-* Wlong-long:                            Warning Options.
-* Wmain:                                 Warning Options.
-* Wmissing-braces:                       Warning Options.
-* Wmissing-declarations:                 Warning Options.
-* Wmissing-format-attribute:             Warning Options.
-* Wmissing-noreturn:                     Warning Options.
-* Wmissing-prototypes:                   Warning Options.
-* Wmultichar:                            Warning Options.
-* Wnested-externs:                       Warning Options.
-* Wno-deprecated:                        C++ Dialect Options.
-* Wno-deprecated-declarations:           Warning Options.
-* Wno-div-by-zero:                       Warning Options.
-* Wno-format-extra-args:                 Warning Options.
-* Wno-format-y2k:                        Warning Options.
-* Wno-import:                            Warning Options.
-* Wno-long-long:                         Warning Options.
-* Wno-multichar:                         Warning Options.
-* Wno-non-template-friend:               C++ Dialect Options.
-* Wno-pmf-conversions <1>:               Bound member functions.
-* Wno-pmf-conversions:                   C++ Dialect Options.
-* Wno-protocol:                          Objective-C Dialect Options.
-* Wnon-virtual-dtor:                     C++ Dialect Options.
-* Wold-style-cast:                       C++ Dialect Options.
-* Woverloaded-virtual:                   C++ Dialect Options.
-* Wp:                                    Preprocessor Options.
-* Wpacked:                               Warning Options.
-* Wpadded:                               Warning Options.
-* Wparentheses:                          Warning Options.
-* Wpointer-arith <1>:                    Pointer Arith.
-* Wpointer-arith:                        Warning Options.
-* Wredundant-decls:                      Warning Options.
-* Wreorder <1>:                          Warning Options.
-* Wreorder:                              C++ Dialect Options.
-* Wreturn-type:                          Warning Options.
-* Wselector:                             Objective-C Dialect Options.
-* Wsequence-point:                       Warning Options.
-* Wshadow:                               Warning Options.
-* Wsign-compare:                         Warning Options.
-* Wsign-promo:                           C++ Dialect Options.
-* Wstrict-prototypes:                    Warning Options.
-* Wswitch:                               Warning Options.
-* Wsynth:                                C++ Dialect Options.
-* Wsystem-headers <1>:                   Preprocessor Options.
-* Wsystem-headers:                       Warning Options.
-* Wtraditional <1>:                      Preprocessor Options.
-* Wtraditional:                          Warning Options.
-* Wtrigraphs <1>:                        Preprocessor Options.
-* Wtrigraphs:                            Warning Options.
-* Wundef <1>:                            Preprocessor Options.
-* Wundef:                                Warning Options.
-* Wuninitialized:                        Warning Options.
-* Wunknown-pragmas:                      Warning Options.
-* Wunreachable-code:                     Warning Options.
-* Wunused:                               Warning Options.
-* Wunused-function:                      Warning Options.
-* Wunused-label:                         Warning Options.
-* Wunused-parameter:                     Warning Options.
-* Wunused-value:                         Warning Options.
-* Wunused-variable:                      Warning Options.
-* Wwrite-strings:                        Warning Options.
-* x <1>:                                 Preprocessor Options.
-* x:                                     Overall Options.
-* Xlinker:                               Link Options.
-* Ym:                                    System V Options.
-* YP:                                    System V Options.
-