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.

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A B C D E F G H I K L M N O P Q R S T U V W X Y

	Index Entry	Section

#
	`###`	3.2 Options Controlling the Kind of Output

-
	`-mcpu`	3.17.33 RX Options
	`-patch`	3.17.33 RX Options

A
	`A`	3.11 Options Controlling the Preprocessor
	`all_load`	3.17.7 Darwin Options
	`allowable_client`	3.17.7 Darwin Options
	`ansi`	2.1 C language
	`ansi`	3.4 Options Controlling C Dialect
	`ansi`	3.11 Options Controlling the Preprocessor
	`ansi`	6.52 Other built-in functions provided by GCC
	`ansi`	11.9 Certain Changes We Don't Want to Make
	`arch_errors_fatal`	3.17.7 Darwin Options
	`aux-info`	3.4 Options Controlling C Dialect

B
	`b`	3.16 Specifying Target Machine and Compiler Version
	`B`	3.14 Options for Directory Search
	`Bdynamic`	3.17.42 VxWorks Options
	`bind_at_load`	3.17.7 Darwin Options
	`Bstatic`	3.17.42 VxWorks Options
	`bundle`	3.17.7 Darwin Options
	`bundle_loader`	3.17.7 Darwin Options

C
	`C`	3.11 Options Controlling the Preprocessor
	`c`	3.2 Options Controlling the Kind of Output
	`c`	3.13 Options for Linking
	`client_name`	3.17.7 Darwin Options
	`combine`	3.2 Options Controlling the Kind of Output
	`compatibility_version`	3.17.7 Darwin Options
	`coverage`	3.9 Options for Debugging Your Program or GCC
	`current_version`	3.17.7 Darwin Options

D
	`D`	3.11 Options Controlling the Preprocessor
	`d`	3.9 Options for Debugging Your Program or GCC
	`dA`	3.9 Options for Debugging Your Program or GCC
	`dD`	3.9 Options for Debugging Your Program or GCC
	`dD`	3.11 Options Controlling the Preprocessor
	`dead_strip`	3.17.7 Darwin Options
	`dependency-file`	3.17.7 Darwin Options
	`dH`	3.9 Options for Debugging Your Program or GCC
	`dI`	3.11 Options Controlling the Preprocessor
	`dM`	3.11 Options Controlling the Preprocessor
	`dm`	3.9 Options for Debugging Your Program or GCC
	`dN`	3.11 Options Controlling the Preprocessor
	`dP`	3.9 Options for Debugging Your Program or GCC
	`dp`	3.9 Options for Debugging Your Program or GCC
	`dU`	3.11 Options Controlling the Preprocessor
	`dumpmachine`	3.9 Options for Debugging Your Program or GCC
	`dumpspecs`	3.9 Options for Debugging Your Program or GCC
	`dumpversion`	3.9 Options for Debugging Your Program or GCC
	`dv`	3.9 Options for Debugging Your Program or GCC
	`dx`	3.9 Options for Debugging Your Program or GCC
	`dy`	3.9 Options for Debugging Your Program or GCC
	`dylib_file`	3.17.7 Darwin Options
	`dylinker_install_name`	3.17.7 Darwin Options
	`dynamic`	3.17.7 Darwin Options
	`dynamiclib`	3.17.7 Darwin Options

E
	`E`	3.2 Options Controlling the Kind of Output
	`E`	3.13 Options for Linking
	`EB`	3.17.1 ARC Options
	`EB`	3.17.26 MIPS Options
	`EL`	3.17.1 ARC Options
	`EL`	3.17.26 MIPS Options
	`exported_symbols_list`	3.17.7 Darwin Options

F
	`F`	3.17.7 Darwin Options
	`fabi-version`	3.5 Options Controlling C++ Dialect
	`falign-functions`	3.10 Options That Control Optimization
	`falign-jumps`	3.10 Options That Control Optimization
	`falign-labels`	3.10 Options That Control Optimization
	`falign-loops`	3.10 Options That Control Optimization
	`fargument-alias`	3.18 Options for Code Generation Conventions
	`fargument-noalias`	3.18 Options for Code Generation Conventions
	`fargument-noalias-anything`	3.18 Options for Code Generation Conventions
	`fargument-noalias-global`	3.18 Options for Code Generation Conventions
	`fassociative-math`	3.10 Options That Control Optimization
	`fasynchronous-unwind-tables`	3.18 Options for Code Generation Conventions
	`fauto-inc-dec`	3.10 Options That Control Optimization
	`fbounds-check`	3.18 Options for Code Generation Conventions
	`fbranch-probabilities`	3.10 Options That Control Optimization
	`fbranch-target-load-optimize`	3.10 Options That Control Optimization
	`fbranch-target-load-optimize2`	3.10 Options That Control Optimization
	`fbtr-bb-exclusive`	3.10 Options That Control Optimization
	`fcall-saved`	3.18 Options for Code Generation Conventions
	`fcall-used`	3.18 Options for Code Generation Conventions
	`fcaller-saves`	3.10 Options That Control Optimization
	`fcallgraph-info`	3.9 Options for Debugging Your Program or GCC
	`fcheck-data-deps`	3.10 Options That Control Optimization
	`fcheck-new`	3.5 Options Controlling C++ Dialect
	`fcommon`	6.35 Specifying Attributes of Variables
	`fcompare-debug`	3.9 Options for Debugging Your Program or GCC
	`fcompare-debug-second`	3.9 Options for Debugging Your Program or GCC
	`fcond-mismatch`	3.4 Options Controlling C Dialect
	`fconserve-space`	3.5 Options Controlling C++ Dialect
	`fconserve-stack`	3.10 Options That Control Optimization
	`fconstant-string-class`	3.6 Options Controlling Objective-C and Objective-C++ Dialects
	`fcprop-registers`	3.10 Options That Control Optimization
	`fcrossjumping`	3.10 Options That Control Optimization
	`fcse-follow-jumps`	3.10 Options That Control Optimization
	`fcse-skip-blocks`	3.10 Options That Control Optimization
	`fcx-fortran-rules`	3.10 Options That Control Optimization
	`fcx-limited-range`	3.10 Options That Control Optimization
	`fdata-sections`	3.10 Options That Control Optimization
	`fdbg-cnt`	3.9 Options for Debugging Your Program or GCC
	`fdbg-cnt-list`	3.9 Options for Debugging Your Program or GCC
	`fdce`	3.10 Options That Control Optimization
	`fdebug-prefix-map`	3.9 Options for Debugging Your Program or GCC
	`fdelayed-branch`	3.10 Options That Control Optimization
	`fdelete-null-pointer-checks`	3.10 Options That Control Optimization
	`fdiagnostics-show-location`	3.7 Options to Control Diagnostic Messages Formatting
	`fdiagnostics-show-option`	3.7 Options to Control Diagnostic Messages Formatting
	`fdirectives-only`	3.11 Options Controlling the Preprocessor
	`fdollars-in-identifiers`	3.11 Options Controlling the Preprocessor
	`fdollars-in-identifiers`	11.3 Interoperation
	`fdse`	3.10 Options That Control Optimization
	`fdump-class-hierarchy`	3.9 Options for Debugging Your Program or GCC
	`fdump-final-insns`	3.9 Options for Debugging Your Program or GCC
	`fdump-ipa`	3.9 Options for Debugging Your Program or GCC
	`fdump-noaddr`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-alignments`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-all`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-asmcons`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-auto_inc_dec`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-barriers`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-bbpart`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-bbro`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-btl2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-btl2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-bypass`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-ce1`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-ce2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-ce3`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-combine`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-compgotos`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-cprop_hardreg`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-csa`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-cse1`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-cse2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-dbr`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-dce`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-dce1`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-dce2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-dfinish`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-dfinit`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-eh`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-eh_ranges`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-expand`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-fwprop1`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-fwprop2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-gcse1`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-gcse2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-init-regs`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-initvals`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-into_cfglayout`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-ira`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-jump`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-loop2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-mach`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-mode_sw`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-outof_cfglayout`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-peephole2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-postreload`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-pro_and_epilogue`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-regclass`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-regmove`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-rnreg`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-sched1`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-sched2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-see`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-seqabstr`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-shorten`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-sibling`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-sms`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-split1`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-split2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-split3`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-split4`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-split5`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-stack`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-subreg1`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-subreg2`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-subregs_of_mode_finish`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-subregs_of_mode_init`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-unshare`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-vartrack`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-vregs`	3.9 Options for Debugging Your Program or GCC
	`fdump-rtl-web`	3.9 Options for Debugging Your Program or GCC
	`fdump-scos`	3.9 Options for Debugging Your Program or GCC
	`fdump-statistics`	3.9 Options for Debugging Your Program or GCC
	`fdump-translation-unit`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-alias`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-all`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-ccp`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-cfg`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-ch`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-copyprop`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-copyrename`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-dce`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-dom`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-dse`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-forwprop`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-fre`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-gimple`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-mudflap`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-nrv`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-optimized`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-original`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-phiopt`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-pre`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-sink`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-slp`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-sra`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-ssa`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-store_copyprop`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-storeccp`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-vcg`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-vect`	3.9 Options for Debugging Your Program or GCC
	`fdump-tree-vrp`	3.9 Options for Debugging Your Program or GCC
	`fdump-unnumbered`	3.9 Options for Debugging Your Program or GCC
	`fdump-unnumbered-links`	3.9 Options for Debugging Your Program or GCC
	`fdwarf2-cfi-asm`	3.9 Options for Debugging Your Program or GCC
	`fearly-inlining`	3.10 Options That Control Optimization
	`feliminate-dwarf2-dups`	3.9 Options for Debugging Your Program or GCC
	`feliminate-unused-debug-symbols`	3.9 Options for Debugging Your Program or GCC
	`feliminate-unused-debug-types`	3.9 Options for Debugging Your Program or GCC
	`fenable-icf-debug`	3.9 Options for Debugging Your Program or GCC
	`fexceptions`	3.18 Options for Code Generation Conventions
	`fexcess-precision`	3.10 Options That Control Optimization
	`fexec-charset`	3.11 Options Controlling the Preprocessor
	`fexpensive-optimizations`	3.10 Options That Control Optimization
	`fextended-identifiers`	3.11 Options Controlling the Preprocessor
	`ffast-math`	3.10 Options That Control Optimization
	`ffinite-math-only`	3.10 Options That Control Optimization
	`ffix-and-continue`	3.17.7 Darwin Options
	`ffixed`	3.18 Options for Code Generation Conventions
	`ffloat-store`	3.10 Options That Control Optimization
	`ffloat-store`	11.7 Disappointments and Misunderstandings
	`ffor-scope`	3.5 Options Controlling C++ Dialect
	`fforward-propagate`	3.10 Options That Control Optimization
	`ffreestanding`	2.1 C language
	`ffreestanding`	3.4 Options Controlling C Dialect
	`ffreestanding`	3.8 Options to Request or Suppress Warnings
	`ffreestanding`	6.29 Declaring Attributes of Functions
	`ffriend-injection`	3.5 Options Controlling C++ Dialect
	`ffunction-sections`	3.10 Options That Control Optimization
	`fgcse`	3.10 Options That Control Optimization
	`fgcse-after-reload`	3.10 Options That Control Optimization
	`fgcse-las`	3.10 Options That Control Optimization
	`fgcse-lm`	3.10 Options That Control Optimization
	`fgcse-sm`	3.10 Options That Control Optimization
	`fgnu-runtime`	3.6 Options Controlling Objective-C and Objective-C++ Dialects
	`fgnu89-inline`	3.4 Options Controlling C Dialect
	`fgraphite-identity`	3.10 Options That Control Optimization
	`fhosted`	3.4 Options Controlling C Dialect
	`fif-conversion`	3.10 Options That Control Optimization
	`fif-conversion2`	3.10 Options That Control Optimization
	`filelist`	3.17.7 Darwin Options
	`findirect-data`	3.17.7 Darwin Options
	`findirect-inlining`	3.10 Options That Control Optimization
	`finhibit-size-directive`	3.18 Options for Code Generation Conventions
	`finline-functions`	3.10 Options That Control Optimization
	`finline-functions-called-once`	3.10 Options That Control Optimization
	`finline-limit`	3.10 Options That Control Optimization
	`finline-small-functions`	3.10 Options That Control Optimization
	`finput-charset`	3.11 Options Controlling the Preprocessor
	`finstrument-functions`	3.18 Options for Code Generation Conventions
	`finstrument-functions`	6.29 Declaring Attributes of Functions
	`finstrument-functions-exclude-file-list`	3.18 Options for Code Generation Conventions
	`finstrument-functions-exclude-function-list`	3.18 Options for Code Generation Conventions
	`fipa-cp`	3.10 Options That Control Optimization
	`fipa-cp-clone`	3.10 Options That Control Optimization
	`fipa-matrix-reorg`	3.10 Options That Control Optimization
	`fipa-pta`	3.10 Options That Control Optimization
	`fipa-pure-const`	3.10 Options That Control Optimization
	`fipa-reference`	3.10 Options That Control Optimization
	`fipa-sra`	3.10 Options That Control Optimization
	`fipa-struct-reorg`	3.10 Options That Control Optimization
	`fira-coalesce`	3.10 Options That Control Optimization
	`fira-loop-pressure`	3.10 Options That Control Optimization
	`fira-verbose`	3.10 Options That Control Optimization
	`fivopts`	3.10 Options That Control Optimization
	`fkeep-inline-functions`	3.10 Options That Control Optimization
	`fkeep-inline-functions`	6.38 An Inline Function is As Fast As a Macro
	`fkeep-static-consts`	3.10 Options That Control Optimization
	`flat_namespace`	3.17.7 Darwin Options
	`flax-vector-conversions`	3.4 Options Controlling C Dialect
	`fleading-underscore`	3.18 Options for Code Generation Conventions
	`flto`	3.10 Options That Control Optimization
	`fltrans`	3.10 Options That Control Optimization
	`fltrans-output-list`	3.10 Options That Control Optimization
	`fmem-report`	3.9 Options for Debugging Your Program or GCC
	`fmerge-all-constants`	3.10 Options That Control Optimization
	`fmerge-constants`	3.10 Options That Control Optimization
	`fmerge-debug-strings`	3.9 Options for Debugging Your Program or GCC
	`fmessage-length`	3.7 Options to Control Diagnostic Messages Formatting
	`fmodulo-sched`	3.10 Options That Control Optimization
	`fmodulo-sched-allow-regmoves`	3.10 Options That Control Optimization
	`fmove-loop-invariants`	3.10 Options That Control Optimization
	`fms-extensions`	3.4 Options Controlling C Dialect
	`fms-extensions`	3.5 Options Controlling C++ Dialect
	`fms-extensions`	6.56 Unnamed struct/union fields within structs/unions
	`fmudflap`	3.10 Options That Control Optimization
	`fmudflapir`	3.10 Options That Control Optimization
	`fmudflapth`	3.10 Options That Control Optimization
	`fnext-runtime`	3.6 Options Controlling Objective-C and Objective-C++ Dialects
	`fno-access-control`	3.5 Options Controlling C++ Dialect
	`fno-asm`	3.4 Options Controlling C Dialect
	`fno-branch-count-reg`	3.10 Options That Control Optimization
	`fno-builtin`	3.4 Options Controlling C Dialect
	`fno-builtin`	3.8 Options to Request or Suppress Warnings
	`fno-builtin`	6.29 Declaring Attributes of Functions
	`fno-builtin`	6.52 Other built-in functions provided by GCC
	`fno-common`	3.18 Options for Code Generation Conventions
	`fno-common`	6.35 Specifying Attributes of Variables
	`fno-compare-debug`	3.9 Options for Debugging Your Program or GCC
	`fno-deduce-init-list`	3.5 Options Controlling C++ Dialect
	`fno-default-inline`	3.5 Options Controlling C++ Dialect
	`fno-default-inline`	3.10 Options That Control Optimization
	`fno-default-inline`	6.38 An Inline Function is As Fast As a Macro
	`fno-defer-pop`	3.10 Options That Control Optimization
	`fno-dwarf2-cfi-asm`	3.9 Options for Debugging Your Program or GCC
	`fno-elide-constructors`	3.5 Options Controlling C++ Dialect
	`fno-enforce-eh-specs`	3.5 Options Controlling C++ Dialect
	`fno-for-scope`	3.5 Options Controlling C++ Dialect
	`fno-function-cse`	3.10 Options That Control Optimization
	`fno-gnu-keywords`	3.5 Options Controlling C++ Dialect
	`fno-guess-branch-probability`	3.10 Options That Control Optimization
	`fno-ident`	3.18 Options for Code Generation Conventions
	`fno-implement-inlines`	3.5 Options Controlling C++ Dialect
	`fno-implement-inlines`	7.4 #pragma interface and implementation
	`fno-implicit-inline-templates`	3.5 Options Controlling C++ Dialect
	`fno-implicit-templates`	3.5 Options Controlling C++ Dialect
	`fno-implicit-templates`	7.5 Where's the Template?
	`fno-inline`	3.10 Options That Control Optimization
	`fno-ira-share-save-slots`	3.10 Options That Control Optimization
	`fno-ira-share-spill-slots`	3.10 Options That Control Optimization
	`fno-jump-tables`	3.18 Options for Code Generation Conventions
	`fno-math-errno`	3.10 Options That Control Optimization
	`fno-merge-debug-strings`	3.9 Options for Debugging Your Program or GCC
	`fno-nil-receivers`	3.6 Options Controlling Objective-C and Objective-C++ Dialects
	`fno-nonansi-builtins`	3.5 Options Controlling C++ Dialect
	`fno-operator-names`	3.5 Options Controlling C++ Dialect
	`fno-optional-diags`	3.5 Options Controlling C++ Dialect
	`fno-peephole`	3.10 Options That Control Optimization
	`fno-peephole2`	3.10 Options That Control Optimization
	`fno-pretty-templates`	3.5 Options Controlling C++ Dialect
	`fno-rtti`	3.5 Options Controlling C++ Dialect
	`fno-sched-interblock`	3.10 Options That Control Optimization
	`fno-sched-spec`	3.10 Options That Control Optimization
	`fno-set-stack-executable`	3.17.16 i386 and x86-64 Windows Options
	`fno-show-column`	3.11 Options Controlling the Preprocessor
	`fno-signed-bitfields`	3.4 Options Controlling C Dialect
	`fno-signed-zeros`	3.10 Options That Control Optimization
	`fno-stack-limit`	3.18 Options for Code Generation Conventions
	`fno-threadsafe-statics`	3.5 Options Controlling C++ Dialect
	`fno-toplevel-reorder`	3.10 Options That Control Optimization
	`fno-trapping-math`	3.10 Options That Control Optimization
	`fno-unsigned-bitfields`	3.4 Options Controlling C Dialect
	`fno-use-cxa-get-exception-ptr`	3.5 Options Controlling C++ Dialect
	`fno-var-tracking-assignments`	3.9 Options for Debugging Your Program or GCC
	`fno-var-tracking-assignments-toggle`	3.9 Options for Debugging Your Program or GCC
	`fno-weak`	3.5 Options Controlling C++ Dialect
	`fno-working-directory`	3.11 Options Controlling the Preprocessor
	`fno-zero-initialized-in-bss`	3.10 Options That Control Optimization
	`fnon-call-exceptions`	3.18 Options for Code Generation Conventions
	`fobjc-call-cxx-cdtors`	3.6 Options Controlling Objective-C and Objective-C++ Dialects
	`fobjc-direct-dispatch`	3.6 Options Controlling Objective-C and Objective-C++ Dialects
	`fobjc-exceptions`	3.6 Options Controlling Objective-C and Objective-C++ Dialects
	`fobjc-gc`	3.6 Options Controlling Objective-C and Objective-C++ Dialects
	`fomit-frame-pointer`	3.10 Options That Control Optimization
	`fopenmp`	3.4 Options Controlling C Dialect
	`foptimize-register-move`	3.10 Options That Control Optimization
	`foptimize-sibling-calls`	3.10 Options That Control Optimization
	`force_cpusubtype_ALL`	3.17.7 Darwin Options
	`force_flat_namespace`	3.17.7 Darwin Options
	`fpack-struct`	3.18 Options for Code Generation Conventions
	`fpcc-struct-return`	3.18 Options for Code Generation Conventions
	`fpcc-struct-return`	11.4 Incompatibilities of GCC
	`fpch-deps`	3.11 Options Controlling the Preprocessor
	`fpch-preprocess`	3.11 Options Controlling the Preprocessor
	`fpeel-loops`	3.10 Options That Control Optimization
	`fpermissive`	3.5 Options Controlling C++ Dialect
	`fPIC`	3.18 Options for Code Generation Conventions
	`fpic`	3.18 Options for Code Generation Conventions
	`fPIE`	3.18 Options for Code Generation Conventions
	`fpie`	3.18 Options for Code Generation Conventions
	`fpost-ipa-mem-report`	3.9 Options for Debugging Your Program or GCC
	`fpre-ipa-mem-report`	3.9 Options for Debugging Your Program or GCC
	`fpredictive-commoning`	3.10 Options That Control Optimization
	`fprefetch-loop-arrays`	3.10 Options That Control Optimization
	`fpreprocessed`	3.11 Options Controlling the Preprocessor
	`fpreserve-control-flow`	3.10 Options That Control Optimization
	`fprofile-arcs`	3.9 Options for Debugging Your Program or GCC
	`fprofile-arcs`	6.52 Other built-in functions provided by GCC
	`fprofile-correction`	3.10 Options That Control Optimization
	`fprofile-dir`	3.10 Options That Control Optimization
	`fprofile-generate`	3.10 Options That Control Optimization
	`fprofile-use`	3.10 Options That Control Optimization
	`fprofile-values`	3.10 Options That Control Optimization
	`fpu`	3.17.33 RX Options
	`frandom-seed`	3.9 Options for Debugging Your Program or GCC
	`freciprocal-math`	3.10 Options That Control Optimization
	`frecord-gcc-switches`	3.18 Options for Code Generation Conventions
	`freg-struct-return`	3.18 Options for Code Generation Conventions
	`fregmove`	3.10 Options That Control Optimization
	`frename-registers`	3.10 Options That Control Optimization
	`freorder-blocks`	3.10 Options That Control Optimization
	`freorder-blocks-and-partition`	3.10 Options That Control Optimization
	`freorder-functions`	3.10 Options That Control Optimization
	`freplace-objc-classes`	3.6 Options Controlling Objective-C and Objective-C++ Dialects
	`frepo`	3.5 Options Controlling C++ Dialect
	`frepo`	7.5 Where's the Template?
	`frerun-cse-after-loop`	3.10 Options That Control Optimization
	`freschedule-modulo-scheduled-loops`	3.10 Options That Control Optimization
	`frounding-math`	3.10 Options That Control Optimization
	`fsched-critical-path-heuristic`	3.10 Options That Control Optimization
	`fsched-dep-count-heuristic`	3.10 Options That Control Optimization
	`fsched-group-heuristic`	3.10 Options That Control Optimization
	`fsched-last-insn-heuristic`	3.10 Options That Control Optimization
	`fsched-pressure`	3.10 Options That Control Optimization
	`fsched-rank-heuristic`	3.10 Options That Control Optimization
	`fsched-spec-insn-heuristic`	3.10 Options That Control Optimization
	`fsched-spec-load`	3.10 Options That Control Optimization
	`fsched-spec-load-dangerous`	3.10 Options That Control Optimization
	`fsched-stalled-insns`	3.10 Options That Control Optimization
	`fsched-stalled-insns-dep`	3.10 Options That Control Optimization
	`fsched-verbose`	3.9 Options for Debugging Your Program or GCC
	`fsched2-use-superblocks`	3.10 Options That Control Optimization
	`fschedule-insns`	3.10 Options That Control Optimization
	`fschedule-insns2`	3.10 Options That Control Optimization
	`fsection-anchors`	3.10 Options That Control Optimization
	`fsel-sched-pipelining`	3.10 Options That Control Optimization
	`fsel-sched-pipelining-outer-loops`	3.10 Options That Control Optimization
	`fselective-scheduling`	3.10 Options That Control Optimization
	`fselective-scheduling2`	3.10 Options That Control Optimization
	`fshort-double`	3.18 Options for Code Generation Conventions
	`fshort-enums`	3.18 Options for Code Generation Conventions
	`fshort-enums`	4.9 Structures, unions, enumerations, and bit-fields
	`fshort-enums`	6.36 Specifying Attributes of Types
	`fshort-enums`	11.9 Certain Changes We Don't Want to Make
	`fshort-wchar`	3.18 Options for Code Generation Conventions
	`fsignaling-nans`	3.10 Options That Control Optimization
	`fsigned-bitfields`	3.4 Options Controlling C Dialect
	`fsigned-bitfields`	11.9 Certain Changes We Don't Want to Make
	`fsigned-char`	3.4 Options Controlling C Dialect
	`fsigned-char`	4.4 Characters
	`fsingle-precision-constant`	3.10 Options That Control Optimization
	`fsplit-ivs-in-unroller`	3.10 Options That Control Optimization
	`fsplit-wide-types`	3.10 Options That Control Optimization
	`fstack-check`	3.18 Options for Code Generation Conventions
	`fstack-limit-register`	3.18 Options for Code Generation Conventions
	`fstack-limit-symbol`	3.18 Options for Code Generation Conventions
	`fstack-protector`	3.10 Options That Control Optimization
	`fstack-protector-all`	3.10 Options That Control Optimization
	`fstack-usage`	3.9 Options for Debugging Your Program or GCC
	`fstats`	3.5 Options Controlling C++ Dialect
	`fstrict-aliasing`	3.10 Options That Control Optimization
	`fstrict-overflow`	3.10 Options That Control Optimization
	`fsyntax-only`	3.8 Options to Request or Suppress Warnings
	`ftabstop`	3.11 Options Controlling the Preprocessor
	`ftemplate-depth`	3.5 Options Controlling C++ Dialect
	`ftest-coverage`	3.9 Options for Debugging Your Program or GCC
	`fthread-jumps`	3.10 Options That Control Optimization
	`ftime-report`	3.9 Options for Debugging Your Program or GCC
	`ftls-model`	3.18 Options for Code Generation Conventions
	`ftracer`	3.10 Options That Control Optimization
	`ftracer`	3.10 Options That Control Optimization
	`ftrapv`	3.18 Options for Code Generation Conventions
	`ftree-builtin-call-dce`	3.10 Options That Control Optimization
	`ftree-ccp`	3.10 Options That Control Optimization
	`ftree-ch`	3.10 Options That Control Optimization
	`ftree-copy-prop`	3.10 Options That Control Optimization
	`ftree-copyrename`	3.10 Options That Control Optimization
	`ftree-dce`	3.10 Options That Control Optimization
	`ftree-dominator-opts`	3.10 Options That Control Optimization
	`ftree-dse`	3.10 Options That Control Optimization
	`ftree-forwprop`	3.10 Options That Control Optimization
	`ftree-fre`	3.10 Options That Control Optimization
	`ftree-loop-im`	3.10 Options That Control Optimization
	`ftree-loop-ivcanon`	3.10 Options That Control Optimization
	`ftree-loop-linear`	3.10 Options That Control Optimization
	`ftree-loop-optimize`	3.10 Options That Control Optimization
	`ftree-parallelize-loops`	3.10 Options That Control Optimization
	`ftree-phiprop`	3.10 Options That Control Optimization
	`ftree-pre`	3.10 Options That Control Optimization
	`ftree-pta`	3.10 Options That Control Optimization
	`ftree-reassoc`	3.10 Options That Control Optimization
	`ftree-sink`	3.10 Options That Control Optimization
	`ftree-slp-vectorize`	3.10 Options That Control Optimization
	`ftree-sra`	3.10 Options That Control Optimization
	`ftree-ter`	3.10 Options That Control Optimization
	`ftree-vect-loop-version`	3.10 Options That Control Optimization
	`ftree-vectorize`	3.10 Options That Control Optimization
	`ftree-vectorizer-verbose`	3.9 Options for Debugging Your Program or GCC
	`ftree-vrp`	3.10 Options That Control Optimization
	`funit-at-a-time`	3.10 Options That Control Optimization
	`funroll-all-loops`	3.10 Options That Control Optimization
	`funroll-all-loops`	3.10 Options That Control Optimization
	`funroll-loops`	3.10 Options That Control Optimization
	`funroll-loops`	3.10 Options That Control Optimization
	`funsafe-loop-optimizations`	3.10 Options That Control Optimization
	`funsafe-math-optimizations`	3.10 Options That Control Optimization
	`funsigned-bitfields`	3.4 Options Controlling C Dialect
	`funsigned-bitfields`	4.9 Structures, unions, enumerations, and bit-fields
	`funsigned-bitfields`	11.9 Certain Changes We Don't Want to Make
	`funsigned-char`	3.4 Options Controlling C Dialect
	`funsigned-char`	4.4 Characters
	`funswitch-loops`	3.10 Options That Control Optimization
	`funwind-tables`	3.18 Options for Code Generation Conventions
	`fuse-cxa-atexit`	3.5 Options Controlling C++ Dialect
	`fvar-tracking`	3.9 Options for Debugging Your Program or GCC
	`fvar-tracking-assignments`	3.9 Options for Debugging Your Program or GCC
	`fvar-tracking-assignments-toggle`	3.9 Options for Debugging Your Program or GCC
	`fvariable-expansion-in-unroller`	3.10 Options That Control Optimization
	`fvect-cost-model`	3.10 Options That Control Optimization
	`fverbose-asm`	3.18 Options for Code Generation Conventions
	`fvisibility`	3.18 Options for Code Generation Conventions
	`fvisibility-inlines-hidden`	3.5 Options Controlling C++ Dialect
	`fvisibility-ms-compat`	3.5 Options Controlling C++ Dialect
	`fvpt`	3.10 Options That Control Optimization
	`fweb`	3.10 Options That Control Optimization
	`fwhole-program`	3.10 Options That Control Optimization
	`fwhopr`	3.10 Options That Control Optimization
	`fwide-exec-charset`	3.11 Options Controlling the Preprocessor
	`fworking-directory`	3.11 Options Controlling the Preprocessor
	`fwpa`	3.10 Options That Control Optimization
	`fwrapv`	3.18 Options for Code Generation Conventions
	`fzero-link`	3.6 Options Controlling Objective-C and Objective-C++ Dialects

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