Support the gentoo crossdev mingw environment for the mingw cross
builder:
- For the cmake toolchains, add /usr/<arch>/usr to root paths, as this
is the mingw root for crossdev.
- -Wno-error=all no longer works with gcc 8.2, instead remove all
-Werror flags in dist_post_configure().
- Also remove all -I/usr/include flags in dist_post_configure().
- Don't prepend ROOT/host/bin to the PATH globally, only in
set_host_env(). This way the target config scripts are correctly found
in PATH.
- Bump openssl 1.0.2o -> 1.0.2p, cmake 3.10.3 -> 3.13.0-rc1, gd 2.2.4 ->
2.2.5 and glib 2.57.2 -> 2.58.1.
- Add libicu unicode handling library, needed by some deps. Put into the
list of dists that must be built for both the host and the target. Use
a whole bunch of patches from MSys2 for it.
- Make openssl build in parallel by using a sed script to prepend a + to
the appropriate make rules.
- Replace fontconfig EXTRA_LIBS with MAKE_ARGS: LIBS="-lintl -liconv"
because these libs were being stripped out from LIBS and LDFLAGS.
- Add V=1 VERBOSE=1 to all make invocations for extra verbosity (to see
compile/link invocations.)
- As a consequence, use dist_ninja_args() for ninja, it will still take
options in DIST_MAKE_ARGS.
- Add CONFIGURE_TYPE "cmakeninja" which is like the "cmake" type except
with -G Ninja to use the ninja generator and built with ninja. Nothing
uses this yet.
- Fix dist_patch() output for already applied patches.
- Add -L/usr/<arch>/usr/lib64 to CFLAGS/CXXFLAGS/OBJCXXFLAGS/LDFLAGS,
because crossdev libpthreads.a is in that directory and it's not in
gcc search paths. It cannot go into CPPFLAGS because those are used
for windres invocations, and windres errors out with non-cpp flags.
- Add -DMINGW_HAS_SECURE_API to all flags to fix a problem with the
mingw headers in crossdev.
- Add -lpthread to a default LIBS env var so that it's often linked last
against any libraries that may need it, at least for autoconf.
- Set the PKG_CONFIG env var to the path of the built pkg-config binary,
not exactly sure why this was necessary.
- Overhaul environment variable saving/restoring for set_host_env() so
that more variables are covered and have good host defaults.
- Add the dlfcn-win32 for mingw for dependencies that need -ldl.
- Add some MSys2 patches for fontconfig.
- Use a sed script to fix the native tools compilation when cross
compiling openal.
- Replace the fedora glib patches for mingw with MSys2 ones for the
newer glib.
- Add --with-threads=posix --disable-libelf to glib DIST_ARGS.
ed8c928adb