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-rw-r--r--Modules/CheckFortranFunctionExists.cmake34
1 files changed, 25 insertions, 9 deletions
diff --git a/Modules/CheckFortranFunctionExists.cmake b/Modules/CheckFortranFunctionExists.cmake
index dc371aa..7ca205a 100644
--- a/Modules/CheckFortranFunctionExists.cmake
+++ b/Modules/CheckFortranFunctionExists.cmake
@@ -5,24 +5,33 @@
CheckFortranFunctionExists
--------------------------
-:command:`Macro <macro>` which checks if a Fortran function exists.
+Check if a Fortran function exists.
-.. code-block:: cmake
+.. command:: CHECK_FORTRAN_FUNCTION_EXISTS
- CHECK_FORTRAN_FUNCTION_EXISTS(<function> <result>)
+ .. code-block:: cmake
-where
+ CHECK_FORTRAN_FUNCTION_EXISTS(<function> <result>)
-``<function>``
- the name of the Fortran function
-``<result>``
- variable to store the result; will be created as an internal cache variable.
+ where
+
+ ``<function>``
+ the name of the Fortran function
+ ``<result>``
+ variable to store the result; will be created as an internal cache variable.
The following variables may be set before calling this macro to modify
the way the check is run:
+``CMAKE_REQUIRED_LINK_OPTIONS``
+ A :ref:`;-list <CMake Language Lists>` of options to add to the link
+ command (see :command:`try_compile` for further details).
+
``CMAKE_REQUIRED_LIBRARIES``
- list of libraries to link
+ A :ref:`;-list <CMake Language Lists>` of libraries to add to the link
+ command. These can be the name of system libraries or they can be
+ :ref:`Imported Targets <Imported Targets>` (see :command:`try_compile` for
+ further details).
#]=======================================================================]
include_guard(GLOBAL)
@@ -30,6 +39,12 @@ include_guard(GLOBAL)
macro(CHECK_FORTRAN_FUNCTION_EXISTS FUNCTION VARIABLE)
if(NOT DEFINED ${VARIABLE})
message(STATUS "Looking for Fortran ${FUNCTION}")
+ if(CMAKE_REQUIRED_LINK_OPTIONS)
+ set(CHECK_FUNCTION_EXISTS_ADD_LINK_OPTIONS
+ LINK_OPTIONS ${CMAKE_REQUIRED_LINK_OPTIONS})
+ else()
+ set(CHECK_FUNCTION_EXISTS_ADD_LINK_OPTIONS)
+ endif()
if(CMAKE_REQUIRED_LIBRARIES)
set(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
@@ -48,6 +63,7 @@ macro(CHECK_FORTRAN_FUNCTION_EXISTS FUNCTION VARIABLE)
try_compile(${VARIABLE}
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler.f
+ ${CHECK_FUNCTION_EXISTS_ADD_LINK_OPTIONS}
${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}
OUTPUT_VARIABLE OUTPUT
)