CheckSourceRuns¶
Added in version 3.19.
Check if given source compiles and links into an executable and can subsequently be run.
- check_source_runs¶
- check_source_runs(<lang> <code> <resultVar> [SRC_EXT <extension>]) - Check once that the - <lang>source supplied in- <code>can be built, linked as an executable, and then run. The- <code>must contain at least a- main()function, or in Fortran a- program.- The result is stored in the internal cache variable specified by - <resultVar>. If the code builds and runs with exit code- 0, success is indicated by boolean- true. Failure to build or run is indicated by boolean- false, such as an empty string or an error message.- By default, the test source file will be given a file extension that matches the requested language. The - SRC_EXToption can be used to override this with- .<extension>instead.- The - <code>must contain a valid main program. For example:- check_source_runs(C "#include <stdlib.h> #include <stdnoreturn.h> noreturn void f(){ exit(0); } int main(void) { f(); return 1; }" HAVE_NORETURN) check_source_runs(Fortran "program test real :: x[*] call co_sum(x) end program" HAVE_COARRAY) - The compile and link commands can be influenced by setting any of the following variables prior to calling - check_source_runs()
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>_FLAGSand 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
-DFOOor-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_DIRECTORIESdirectory property will be ignored.
CMAKE_REQUIRED_LINK_OPTIONS
Added 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_LINK_DIRECTORIES
Added in version 3.31.
A ;-list of libraries search paths to pass to the linker (see
try_compile()for further details).
CMAKE_REQUIRED_QUIET
Added in version 3.1.
If this variable evaluates to a boolean true value, all status messages associated with the check will be suppressed.
