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.

• A-predicate=answer: Preprocessing Options
• Apredicate=answer: Preprocessing Options
• backslash: Fortran Dialect Options
• C: Preprocessing Options
• CC: Preprocessing Options
• cpp: Preprocessing Options
• dD: Preprocessing Options
• dI: Preprocessing Options
• dM: Preprocessing Options
• dN: Preprocessing Options
• Dname: Preprocessing Options
• Dname=definition: Preprocessing Options
• dU: Preprocessing Options
• 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-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-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: Fortran 2003 status
• fshort-enums: Code Gen Options
• fsign-zero: Runtime Options
• fstack-arrays: Code Gen Options
• fsyntax-only: Error and Warning Options
• fworking-directory: Preprocessing Options
• H: Preprocessing Options
• 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
• Jdir: Directory Options
• Mdir: Directory Options
• nostdinc: Preprocessing Options
• P: Preprocessing Options
• pedantic: Error and Warning Options
• pedantic-errors: Error and Warning Options
• static-libgfortran: Link Options
• std=std option: Fortran Dialect Options
• Uname: Preprocessing Options
• undef: Preprocessing Options
• Waliasing: Error and Warning Options
• Walign-commons: Error and Warning Options
• Wall: Error and Warning Options
• Wampersand: 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
• 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
• 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