cmake: Refactor all convenience library generation into a function.

1 files changed, 19 insertions, 0 deletions

diff --git a/cmake/ConvenienceLibrary.cmake b/cmake/ConvenienceLibrary.cmake
new file mode 100644
index 00000000..bf18b381
--- /dev/null
+++ b/cmake/ConvenienceLibrary.cmake
@@ -0,0 +1,19 @@
+# Function for convenience libraries, ie., libraries which can be statically
+# linked into shared libraries.
+function (add_convenience_library)
+
+    set (name "${ARGV0}")
+    list (REMOVE_AT ARGV 0)
+
+    add_library ("${name}" STATIC ${ARGV})
+
+    if (NOT "${CMAKE_SHARED_LIBRARY_C_FLAGS}" STREQUAL "${CMAKE_SHARED_LIBRARY_CXX_FLAGS}")
+        message (FATAL_ERROR "CMAKE_SHARED_LIBRARY_C_FLAGS (${CMAKE_SHARED_LIBRARY_C_FLAGS}) != CMAKE_SHARED_LIBRARY_CXX_FLAGS (${CMAKE_SHARED_LIBRARY_CXX_FLAGS})")
+    endif ()
+
+    set_target_properties ("${name}" PROPERTIES
+        # Ensure it can be statically linked in shared libraries
+        COMPILE_FLAGS "${CMAKE_SHARED_LIBRARY_C_FLAGS}"
+    )
+
+endfunction ()