bitcoin/depends/hosts/linux.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

38 lines
960 B
Makefile

linux_CFLAGS=-pipe -std=$(C_STANDARD)
linux_CXXFLAGS=-pipe -std=$(CXX_STANDARD)
ifneq ($(LTO),)
linux_AR = $(host_toolchain)gcc-ar
linux_NM = $(host_toolchain)gcc-nm
linux_RANLIB = $(host_toolchain)gcc-ranlib
endif
linux_release_CFLAGS=-O2
linux_release_CXXFLAGS=$(linux_release_CFLAGS)
linux_debug_CFLAGS=-O1
linux_debug_CXXFLAGS=$(linux_debug_CFLAGS)
linux_debug_CPPFLAGS=-D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC -D_LIBCPP_ENABLE_DEBUG_MODE=1
ifeq (86,$(findstring 86,$(build_arch)))
i686_linux_CC=gcc -m32
i686_linux_CXX=g++ -m32
i686_linux_AR=ar
i686_linux_RANLIB=ranlib
i686_linux_NM=nm
i686_linux_STRIP=strip
x86_64_linux_CC=gcc -m64
x86_64_linux_CXX=g++ -m64
x86_64_linux_AR=ar
x86_64_linux_RANLIB=ranlib
x86_64_linux_NM=nm
x86_64_linux_STRIP=strip
else
i686_linux_CC=$(default_host_CC) -m32
i686_linux_CXX=$(default_host_CXX) -m32
x86_64_linux_CC=$(default_host_CC) -m64
x86_64_linux_CXX=$(default_host_CXX) -m64
endif
linux_cmake_system=Linux