Do not link to OpenMP if it is not found

Author: tskisner

src/flacarray/CMakeLists.txt

@@ -25,16 +25,17 @@ set(libflcarr_HEADERS
 
 add_library(flcarr OBJECT ${libflcarr_SOURCES})
 
-target_compile_options(flcarr PRIVATE "${OpenMP_C_FLAGS}")
-
 target_include_directories(flcarr BEFORE PUBLIC
     "${CMAKE_CURRENT_SOURCE_DIR}/libflacarray"
 )
 
 target_include_directories(flcarr PUBLIC "${FLAC_INCLUDE_DIRS}")
 target_link_libraries(flcarr PUBLIC "${FLAC_LIBRARIES}")
 
-target_link_libraries(flcarr PUBLIC "${OpenMP_C_LIBRARIES}")
+if(OpenMP_C_Found)
+    target_compile_options(flcarr PRIVATE "${OpenMP_C_FLAGS}")
+    target_link_libraries(flcarr PUBLIC "${OpenMP_C_LIBRARIES}")
+endif()
 
 # Create an shared library, usable by external compiled software
 

src/flacarray/scripts/CMakeLists.txt

@@ -1,7 +1,11 @@
 # Install python files
 
 set(CONF_EXTRA_LIBS "${FLAC_LIBRARIES}")
-set(CONF_EXTRA_FLAGS "${OpenMP_C_FLAGS}")
+if(OpenMP_C_FOUND)
+    set(CONF_EXTRA_FLAGS "${OpenMP_C_FLAGS}")
+else()
+    set(CONF_EXTRA_FLAGS "")
+endif()
 
 configure_file(
     "${CMAKE_CURRENT_SOURCE_DIR}/config.py.in" # Input file path