CheckFortranSourceCompiles¶
Added in version 3.1.
Check once if Fortran source code can be built.
- check_fortran_source_compiles¶
check_fortran_source_compiles(<code> <resultVar> [FAIL_REGEX <regex>...] [SRC_EXT <extension>] )
Check once that the source supplied in
<code>can be built. The result is stored in the internal cache variable specified by<resultVar>, with booleantruefor success and booleanfalsefor failure.If
FAIL_REGEXis provided, then failure is determined by checking if anything in the compiler output matches any of the specified regular expressions.By default, the test source file will be given a
.Ffile extension. TheSRC_EXToption can be used to override this with.<extension>instead--.F90is a typical choice.See also
check_source_compiles()for a more general command syntax.See also
check_source_runs()to run compiled source.Internally,
try_compile()is used to compile the source. IfCMAKE_TRY_COMPILE_TARGET_TYPEis set toEXECUTABLE(default), the source is compiled and linked as an executable program. If set toSTATIC_LIBRARY, the source is compiled but not linked. In any case, all functions must be declared as usual.The compile and link commands can be influenced by setting any of the following variables prior to calling
check_fortran_source_compiles():
CMAKE_REQUIRED_FLAGSString of additional flags to pass to the compiler. The string must be space-delimited--a ;-list will not work. The contents of
CMAKE_<LANG>_FLAGSand its associated configuration-specific variable are automatically added to the compiler command before the contents ofCMAKE_REQUIRED_FLAGS.
CMAKE_REQUIRED_DEFINITIONSA ;-list of compiler definitions of the form
-DFOOor-DFOO=bar. A definition for the name specified by<resultVar>will also be added automatically.
CMAKE_REQUIRED_INCLUDESA ;-list of header search paths to pass to the compiler. These will be the only header search paths used--the contents of the
INCLUDE_DIRECTORIESdirectory property will be ignored.
CMAKE_REQUIRED_LINK_OPTIONSAdded in version 3.14.
A ;-list of options to add to the link command (see
try_compile()for further details).
CMAKE_REQUIRED_LIBRARIESA ;-list of libraries to add to the link command. These can be the name of system libraries or they can be Imported Targets (see
try_compile()for further details).
CMAKE_REQUIRED_LINK_DIRECTORIESAdded in version 3.31.
A ;-list of libraries search paths to pass to the linker (see
try_compile()for further details).
CMAKE_REQUIRED_QUIETAdded in version 3.1.
If this variable evaluates to a boolean true value, all status messages associated with the check will be suppressed.