{ stdenv }: with stdenv.lib; let # Sanitizers are not supported on Darwin. # Sanitizer headers aren't available in older libc++ stdenvs due to a bug sanitizersWorking = (stdenv.cc.isClang && versionAtLeast (getVersion stdenv.cc.name) "5.0.0") || (stdenv.cc.isGNU && stdenv.isLinux); in stdenv.mkDerivation { name = "cc-wrapper-test"; buildCommand = '' NIX_DEBUG=1 $CC -v NIX_DEBUG=1 $CXX -v printf "checking whether compiler builds valid C binaries... " >&2 $CC -o cc-check ${./cc-main.c} ./cc-check printf "checking whether compiler builds valid C++ binaries... " >&2 $CXX -o cxx-check ${./cxx-main.cc} ./cxx-check ${optionalString (stdenv.isDarwin && stdenv.cc.isClang) '' printf "checking whether compiler can build with CoreFoundation.framework... " >&2 mkdir -p foo/lib $CC -framework CoreFoundation -o core-foundation-check ${./core-foundation-main.c} ./core-foundation-check ''} printf "checking whether compiler uses NIX_CFLAGS_COMPILE... " >&2 mkdir -p foo/include cp ${./foo.c} foo/include/foo.h NIX_CFLAGS_COMPILE="-Ifoo/include -DVALUE=42" $CC -o cflags-check ${./cflags-main.c} ./cflags-check printf "checking whether compiler uses NIX_LDFLAGS... " >&2 mkdir -p foo/lib $CC -shared \ ${optionalString stdenv.isDarwin "-Wl,-install_name,@rpath/libfoo.dylib"} \ -DVALUE=42 \ -o foo/lib/libfoo${stdenv.hostPlatform.extensions.sharedLibrary} \ ${./foo.c} NIX_LDFLAGS="-L$NIX_BUILD_TOP/foo/lib -rpath $NIX_BUILD_TOP/foo/lib" $CC -lfoo -o ldflags-check ${./ldflags-main.c} ./ldflags-check ${optionalString sanitizersWorking '' printf "checking whether sanitizers are fully functional... ">&2 $CC -o sanitizers -fsanitize=address,undefined ${./sanitizers.c} ./sanitizers ''} touch $out ''; meta.platforms = platforms.all; }