The GNU Fortran Compiler: Option Index

Option Index

gfortran’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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	Index Entry	Section

A
	`A-predicate=answer`:	Preprocessing Options
	`Apredicate=answer`:	Preprocessing Options

B
	`backslash`:	Fortran Dialect Options

C
	`C`:	Preprocessing Options
	`CC`:	Preprocessing Options
	`cpp`:	Preprocessing Options

D
	`dD`:	Preprocessing Options
	`dI`:	Preprocessing Options
	`dM`:	Preprocessing Options
	`dN`:	Preprocessing Options
	`Dname`:	Preprocessing Options
	`Dname=definition`:	Preprocessing Options
	`dU`:	Preprocessing Options

F
	`faggressive-function-elimination`:	Code Gen Options
	`falign-commons`:	Code Gen Options
	`fall-intrinsics`:	Fortran Dialect Options
	`fblas-matmul-limit`:	Code Gen Options
	`fbounds-check`:	Code Gen Options
	`fcheck`:	Code Gen Options
	`fcheck-array-temporaries`:	Code Gen Options
	`fcoarray`:	Code Gen Options
	`fconvert=conversion`:	Runtime Options
	`fcray-pointer`:	Fortran Dialect Options
	`fd-lines-as-code`:	Fortran Dialect Options
	`fd-lines-as-comments`:	Fortran Dialect Options
	`fdec`:	Fortran Dialect Options
	`fdec-intrinsic-ints`:	Fortran Dialect Options
	`fdec-math`:	Fortran Dialect Options
	`fdec-static`:	Fortran Dialect Options
	`fdec-structure`:	Fortran Dialect Options
	`fdefault-double-8`:	Fortran Dialect Options
	`fdefault-integer-8`:	Fortran Dialect Options
	`fdefault-real-8`:	Fortran Dialect Options
	`fdollar-ok`:	Fortran Dialect Options
	`fdump-fortran-optimized`:	Debugging Options
	`fdump-fortran-original`:	Debugging Options
	`fdump-parse-tree`:	Debugging Options
	`fexternal-blas`:	Code Gen Options
	`ff2c`:	Code Gen Options
	`ffixed-form`:	Fortran Dialect Options
	`ffixed-line-length-n`:	Fortran Dialect Options
	`ffpe-summary=list`:	Debugging Options
	`ffpe-trap=list`:	Debugging Options
	`ffree-form`:	Fortran Dialect Options
	`ffree-line-length-n`:	Fortran Dialect Options
	`fimplicit-none`:	Fortran Dialect Options
	`finit-character`:	Code Gen Options
	`finit-derived`:	Code Gen Options
	`finit-integer`:	Code Gen Options
	`finit-local-zero`:	Code Gen Options
	`finit-logical`:	Code Gen Options
	`finit-real`:	Code Gen Options
	`finline-matmul-limit`:	Code Gen Options
	`finteger-4-integer-8`:	Fortran Dialect Options
	`fintrinsic-modules-path dir`:	Directory Options
	`fmax-array-constructor`:	Code Gen Options
	`fmax-errors=n`:	Error and Warning Options
	`fmax-identifier-length=n`:	Fortran Dialect Options
	`fmax-stack-var-size`:	Code Gen Options
	`fmax-subrecord-length=length`:	Runtime Options
	`fmodule-private`:	Fortran Dialect Options
	`fno-automatic`:	Code Gen Options
	`fno-backtrace`:	Debugging Options
	`fno-protect-parens`:	Code Gen Options
	`fno-underscoring`:	Code Gen Options
	`fopenacc`:	Fortran Dialect Options
	`fopenmp`:	Fortran Dialect Options
	`fpack-derived`:	Code Gen Options
	`fpp`:	Preprocessing Options
	`frange-check`:	Fortran Dialect Options
	`freal-4-real-10`:	Fortran Dialect Options
	`freal-4-real-16`:	Fortran Dialect Options
	`freal-4-real-8`:	Fortran Dialect Options
	`freal-8-real-10`:	Fortran Dialect Options
	`freal-8-real-16`:	Fortran Dialect Options
	`freal-8-real-4`:	Fortran Dialect Options
	`frealloc-lhs`:	Code Gen Options
	`frecord-marker=length`:	Runtime Options
	`frecursive`:	Code Gen Options
	`frepack-arrays`:	Code Gen Options
	`frontend-optimize`:	Code Gen Options
	`fsecond-underscore`:	Code Gen Options
	`fshort-enums`:	Code Gen Options
	`fshort-enums`:	Fortran 2003 status
	`fsign-zero`:	Runtime Options
	`fstack-arrays`:	Code Gen Options
	`fsyntax-only`:	Error and Warning Options
	`ftest-forall-temp`:	Fortran Dialect Options
	`fworking-directory`:	Preprocessing Options

H
	`H`:	Preprocessing Options

I
	`Idir`:	Directory Options
	`idirafter dir`:	Preprocessing Options
	`imultilib dir`:	Preprocessing Options
	`iprefix prefix`:	Preprocessing Options
	`iquote dir`:	Preprocessing Options
	`isysroot dir`:	Preprocessing Options
	`isystem dir`:	Preprocessing Options

J
	`Jdir`:	Directory Options

M
	`Mdir`:	Directory Options

N
	`nostdinc`:	Preprocessing Options

P
	`P`:	Preprocessing Options
	`pedantic`:	Error and Warning Options
	`pedantic-errors`:	Error and Warning Options

S
	`static-libgfortran`:	Link Options
	`std=std option`:	Fortran Dialect Options

U
	`Uname`:	Preprocessing Options
	`undef`:	Preprocessing Options

W
	`Waliasing`:	Error and Warning Options
	`Walign-commons`:	Error and Warning Options
	`Wall`:	Error and Warning Options
	`Wampersand`:	Error and Warning Options
	`Wargument-mismatch`:	Error and Warning Options
	`Warray-temporaries`:	Error and Warning Options
	`Wc-binding-type`:	Error and Warning Options
	`Wcharacter-truncation`:	Error and Warning Options
	`Wcompare-reals`:	Error and Warning Options
	`Wconversion`:	Error and Warning Options
	`Wconversion-extra`:	Error and Warning Options
	`Werror`:	Error and Warning Options
	`Wextra`:	Error and Warning Options
	`Wfunction-elimination`:	Error and Warning Options
	`Wimplicit-interface`:	Error and Warning Options
	`Wimplicit-procedure`:	Error and Warning Options
	`Winteger-division`:	Error and Warning Options
	`Wintrinsic-shadow`:	Error and Warning Options
	`Wintrinsics-std`:	Error and Warning Options
	`Wline-truncation`:	Error and Warning Options
	`Wpedantic`:	Error and Warning Options
	`Wreal-q-constant`:	Error and Warning Options
	`Wrealloc-lhs`:	Error and Warning Options
	`Wrealloc-lhs-all`:	Error and Warning Options
	`Wsurprising`:	Error and Warning Options
	`Wtabs`:	Error and Warning Options
	`Wtargt-lifetime`:	Error and Warning Options
	`Wundefined-do-loop`:	Error and Warning Options
	`Wunderflow`:	Error and Warning Options
	`Wunused-dummy-argument`:	Error and Warning Options
	`Wunused-parameter`:	Error and Warning Options
	`Wuse-without-only`:	Error and Warning Options
	`Wzerotrip`:	Error and Warning Options

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