* travis: Enable building qt for linux.
* qb: Set QT_SELECT for moc and qtchooser.
This should have no effect on systems where qtchooser is not used.
Fixes https://github.com/libretro/RetroArch/issues/8028
* qb: Actually disable c++ features if there is no c++ compiler.
Now this warning actually does something.
Warning: A working C++ compiler was not found, C++ features will be disabled.
This fixes a few subtle problems with passing CFLAGS and CXXFLAGS as
environment variables for configure.
First it will now only add these variables to config.mk when they are
actually set. If they are unset then the default optimizations in the
Makefile are set. This avoids passing more than one conflicting
optimization level to the compiler.
Next all CFLAGS are added to CXXFLAGS to avoid issues with forgetting to
set both CFLAGS and CXXFLAGS. This results in the cxx compiler getting
passed several redundant optimization levels when both the CFLAGS and
CXXFLAGS environment variabls are used. Now these uses of CFLAGS in
Makefile.common are set to DEF_FLAGS. This allows adding $(DEF_FLAGS)
to the CXXFLAGS variable without adding redundant flags from CFLAGS.
v2: Update other build files.
Currently RetroArch will install assets for xmb, materialui and ozone
unconditionally.
This change will now only install assets when RetroArch is compiled
with support for the relevant menu driver. This also exposes assets
from the nuklear and zarch menu drivers which are still disabled by
default.
This does the following.
1. Fixes checking if the CXX compiler works on platforms other than windows.
2. Turns the error when the CXX compiler is missing or doesn't work into a warning.
3. Adds HAVE_CC and HAVE_CXX.
4. Only adds CC and CXX to config.mk when HAVE_CC or HAVE_CXX are true.
5. Disables Qt companion, Vulkan, CXX_BUILD and NEED_CXX_LINKER if HAVE_CXX is false.
6. Explicitly errors when the CXX compiler is broken or missing and Qt or vulkan support is enabled.
7. No longer explicitly links with the CXX compiler on windows since this should no longer be needed.
This also adds the function `check_enabled` to `qb/qb.lib.sh` which
can be used to dynamically disable any libraries that require C++
support.
By default 'make install' will now install the following 2-3 files
to $(DESTDIR)$(SHARE_DIR)/doc/retroarch which by default is
/usr/local/share/doc/retroarch.
COPYING
README.md
and if media/assets exists it will install:
media/assets/COPYING to COPYING.assets
Users will be able to configure this install path with.
./configure --docdir=PATH
For example:
./configure --docdir=/usr/doc/RetroArch-1.7.0
This allows a user to use --datarootdir=PATH to configure the
share directory used for pixmaps, desktop files, man pages and assets.
By default this will be '/usr/local/share'. Assets and man page install
paths can still be configured with:
--with-man_dir=PATH
and
--with-assets_dir=PATH
Some operating systems like Haiku use unconventional install paths
and this should allow them to configure their build correctly.
