CrucibleCheckRuntimeCapabilities.cmake
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include_guard(GLOBAL)
include(CheckCXXSourceCompiles)
function(crucible_check_runtime_capabilities)
cmake_parse_arguments(RUNTIME_CAPABILITY "" "PREFIX" "" ${ARGV})
crucible_check_dirent_d_namlen("${RUNTIME_CAPABILITY_PREFIX}")
endfunction()
# Linux has this, but macOS does not, in which case we need to fall back to std::strlen()
function(crucible_check_dirent_d_namlen RUNTIME_CAPABILITY_PREFIX)
check_cxx_source_compiles(
"
#include <dirent.h>
int main() {
struct ::dirent entry;
entry.d_namlen = 0;
return 0;
}
"
"${RUNTIME_CAPABILITY_PREFIX}_DIRENT_D_NAMLEN")
endfunction()