mingw32_CFLAGS=-pipe mingw32_CXXFLAGS=$(mingw32_CFLAGS) -isystem $(host_prefix)/include/c++/v1 mingw32_LDFLAGS?=-fuse-ld=lld mingw32_release_CFLAGS=-O3 mingw32_release_CXXFLAGS=$(mingw32_release_CFLAGS) mingw32_debug_CFLAGS=-O0 mingw32_debug_CXXFLAGS=$(mingw32_debug_CFLAGS) mingw32_debug_CPPFLAGS=-D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC