Commit 95ced654cbc976901896f502cbb9b49b5ec88e93
2014-08-17T13:15:45
cmake: add -Wl,--no-undefined to GCC linker flags This way unresolved symbols will be detected when linking the shared library version.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index fcf7c18..8f408c7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -340,6 +340,12 @@ if(USE_GCC OR USE_CLANG)
if(HAVE_GCC_WSHADOW)
list(APPEND EXTRA_CFLAGS "-Wshadow")
endif()
+
+ set(CMAKE_REQUIRED_FLAGS "-Wl,--no-undefined")
+ check_c_compiler_flag("" HAVE_NO_UNDEFINED)
+ if(HAVE_NO_UNDEFINED)
+ list(APPEND EXTRA_LDFLAGS "-Wl,--no-undefined")
+ endif()
endif()
if(ASSEMBLY)