Option summary#
Options#
Here is a summary of all the options specific to GNU Fortran, grouped by type. Explanations are in the following sections.
- Fortran Language Options
See Options controlling Fortran dialect.
-fall-intrinsics
-fallow-argument-mismatch
-fallow-invalid-boz
-fbackslash
-fcray-pointer
-fd-lines-as-code
-fd-lines-as-comments
-fdec
-fdec-char-conversions
-fdec-structure
-fdec-intrinsic-ints
-fdec-static
-fdec-math
-fdec-include
-fdec-format-defaults
-fdec-blank-format-item
-fdefault-double-8
-fdefault-integer-8
-fdefault-real-8
-fdefault-real-10
-fdefault-real-16
-fdollar-ok
-ffixed-line-length-n
-ffixed-line-length-none
-fpad-source
-ffree-form
-ffree-line-length-n
-ffree-line-length-none
-fimplicit-none
-finteger-4-integer-8
-fmax-identifier-length
-fmodule-private
-ffixed-form
-fno-range-check
-fopenacc
-fopenmp
-freal-4-real-10
-freal-4-real-16
-freal-4-real-8
-freal-8-real-10
-freal-8-real-16
-freal-8-real-4
-std=std
-ftest-forall-temp
- Preprocessing Options
See Enable and customize preprocessing.
-A-question[=answer]
-Aquestion
=answer
-C
-CC
-Dmacro[=defn]
-H
-P
-Umacro
-cpp
-dD
-dI
-dM
-dN
-dU
-fworking-directory`|gol| :option:
-imultilib`dir
-iprefix
file
-iquote
-isysroot
dir
-isystem
dir
-nocpp
-nostdinc
-undef
- Error and Warning Options
See Options to request or suppress errors and warnings.
-Waliasing
-Wall
-Wampersand
-Warray-bounds
-Wc-binding-type
-Wcharacter-truncation
-Wconversion
-Wdo-subscript
-Wfunction-elimination
-Wimplicit-interface
-Wimplicit-procedure
-Wintrinsic-shadow
-Wuse-without-only
-Wintrinsics-std
-Wline-truncation
-Wno-align-commons
-Wno-overwrite-recursive
-Wno-tabs
-Wreal-q-constant
-Wsurprising
-Wunderflow
-Wunused-parameter
-Wrealloc-lhs
-Wrealloc-lhs-all
-Wfrontend-loop-interchange
-Wtarget-lifetime
-fmax-errors=n
-fsyntax-only
-pedantic
-pedantic-errors
- Debugging Options
See Options for debugging your program or GNU Fortran.
-fbacktrace
-fdump-fortran-optimized
-fdump-fortran-original
-fdebug-aux-vars
-fdump-fortran-global
-fdump-parse-tree
-ffpe-trap=list
-ffpe-summary=list
- Directory Options
- Link Options
- Runtime Options
See Influencing runtime behavior.
-fconvert=conversion
-fmax-subrecord-length=length
-frecord-marker=length
-fsign-zero
- Interoperability Options
- Code Generation Options
See Options for code generation conventions.
-faggressive-function-elimination
-fblas-matmul-limit=n
-fbounds-check
-ftail-call-workaround
-ftail-call-workaround=n
-fcheck-array-temporaries
-fcheck=
-fcoarray=
-fexternal-blas
-ff2c
-ffrontend-loop-interchange
-ffrontend-optimize
-finit-character=n
-finit-integer=n
-finit-local-zero
-finit-derived
-finit-logical=
-finit-real=<zero|inf|-inf|nan|snan>`|gol| :option:
-finline-matmul-limit=n`-finline-arg-packing
-fmax-array-constructor=n
-fmax-stack-var-size=n
-fno-align-commons
-fno-automatic
-fno-protect-parens
-fno-underscoring
-fsecond-underscore
-fpack-derived
-frealloc-lhs
-frecursive
-frepack-arrays
-fshort-enums
-fstack-arrays