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OpenTTD-patches/cmake/FindDL.cmake

37 lines
694 B
CMake

include(CheckCXXSourceCompiles)
set(CMAKE_REQUIRED_LIBRARIES "dl")
check_cxx_source_compiles("
#include <dlfcn.h>
int main() {
Dl_info info;
return dladdr(0, &info);
}"
DL_FOUND
)
check_cxx_source_compiles("
#include <dlfcn.h>
#include <link.h>
int main() {
Dl_info info;
struct link_map *lm = nullptr;
return dladdr1(0, &info, (void **)&lm, RTLD_DL_LINKMAP);
}"
DL_FOUND2
)
if (DL_FOUND)
add_compile_options(
-DWITH_DL
)
link_libraries(dl)
if (DL_FOUND2)
add_compile_options(
-DWITH_DL2
)
endif (DL_FOUND2)
endif (DL_FOUND)
set(CMAKE_REQUIRED_LIBRARIES "")