intel oneapi needs C linker_language

Author: scivision

src/bool/CMakeLists.txt

@@ -4,6 +4,7 @@ add_library(bool_fortran OBJECT lib.f90)
 
 add_executable(c_fortran_bool main.c)
 target_link_libraries(c_fortran_bool PRIVATE bool_fortran)
+set_target_properties(c_fortran_bool PROPERTIES LINKER_LANGUAGE C)
 add_test(NAME C_Fortran_bool COMMAND c_fortran_bool)
 
 add_executable(cxx_fortran_bool main.cpp)

src/opaque/CMakeLists.txt

@@ -3,6 +3,7 @@ set_directory_properties(PROPERTIES LABELS opaque)
 add_library(opaque_fortran OBJECT lib.f90)
 
 add_executable(c_opaque main.c)
+set_target_properties(c_opaque PROPERTIES LINKER_LANGUAGE C)
 target_link_libraries(c_opaque PRIVATE opaque_fortran)
 add_test(NAME C_Fortran_opaque COMMAND c_opaque)
 

src/pointer/CMakeLists.txt

@@ -3,6 +3,7 @@ set_directory_properties(PROPERTIES LABELS pointer)
 add_library(pointer_fortran OBJECT lib.f90)
 
 add_executable(c_fortran_pointer main.c)
+set_target_properties(c_fortran_pointer PROPERTIES LINKER_LANGUAGE C)
 target_link_libraries(c_fortran_pointer PRIVATE pointer_fortran)
 add_test(NAME C_Fortran_pointer COMMAND c_fortran_pointer)
 

src/poly_type/CMakeLists.txt

@@ -3,6 +3,7 @@ set_directory_properties(PROPERTIES LABELS poly_type)
 add_library(poly_type_lib OBJECT lib.f90)
 
 add_executable(c_poly_type main.c)
+set_target_properties(c_poly_type PROPERTIES LINKER_LANGUAGE C)
 target_link_libraries(c_poly_type PRIVATE poly_type_lib)
 add_test(NAME C_Fortran_poly_type COMMAND c_poly_type)