bitcoin/depends/hosts/mingw32.mk
fanquake 2d1b1c7dae
build: remove --enable-lto
This has outlived its usefulness, doesn't gel well with
newer compilers & `-flto` related options, i.e thin vs full, or `=auto`,
and having `-flto` as the only option means that sometimes this just
needs to be worked around, i.e in oss-fuzz:
https://github.com/google/oss-fuzz/blob/master/projects/bitcoin-core/build.sh.

While it was convenient when `-flto` was newer, support for `-flto` is now
in all compilers we use, and there's also no-longer any real need
for us to treat `-flto` different to any other optimization option.

Remove it, to remove build complexity, and so there's no need
to port a similar option to CMake.

Note that the LTO option remains in depends, because we still a way to
build packages that have LTO specific patches/options.

If we decide to merge this, I'll follow up downstream in oss-fuzz first,
to make sure we don't break the build.
2024-01-05 15:17:50 +00:00

22 lines
588 B
Makefile

ifneq ($(shell $(SHELL) $(.SHELLFLAGS) "command -v $(host)-g++-posix"),)
mingw32_CXX := $(host)-g++-posix
endif
mingw32_CFLAGS=-pipe -std=$(C_STANDARD)
mingw32_CXXFLAGS=-pipe -std=$(CXX_STANDARD)
ifneq ($(LTO),)
mingw32_AR = $(host_toolchain)gcc-ar
mingw32_NM = $(host_toolchain)gcc-nm
mingw32_RANLIB = $(host_toolchain)gcc-ranlib
endif
mingw32_release_CFLAGS=-O2
mingw32_release_CXXFLAGS=$(mingw32_release_CFLAGS)
mingw32_debug_CFLAGS=-O1
mingw32_debug_CXXFLAGS=$(mingw32_debug_CFLAGS)
mingw32_debug_CPPFLAGS=-D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC
mingw32_cmake_system=Windows