CheckFortranSourceCompiles¶
New 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 booleantrue
for success and booleanfalse
for failure.If
FAIL_REGEX
is 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
.F
file extension. TheSRC_EXT
option can be used to override this with.<extension>
instead--.F90
is 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_TYPE
is 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_FLAGS
String of additional flags to pass to the compiler. The string must be space-delimited--a ;-list will not work. The contents of
CMAKE_<LANG>_FLAGS
and its associated configuration-specific variable are automatically added to the compiler command before the contents ofCMAKE_REQUIRED_FLAGS
.
CMAKE_REQUIRED_DEFINITIONS
A ;-list of compiler definitions of the form
-DFOO
or-DFOO=bar
. A definition for the name specified by<resultVar>
will also be added automatically.
CMAKE_REQUIRED_INCLUDES
A ;-list of header search paths to pass to the compiler. These will be the only header search paths used--the contents of the
INCLUDE_DIRECTORIES
directory property will be ignored.
CMAKE_REQUIRED_LINK_OPTIONS
New in version 3.14.
A ;-list of options to add to the link command (see
try_compile()
for further details).
CMAKE_REQUIRED_LIBRARIES
A ;-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_QUIET
New in version 3.1.
If this variable evaluates to a boolean true value, all status messages associated with the check will be suppressed.