* No need for global CXXFLAGS. The only difference to CFLAGS is the
standard selector, use $(subst) to derive them from CFLAGS.
* libstd++ must never be manually linked. Doing so only works for the
GNU C++ stack, not for the LLVM stack and anything else. Link with
the C++ frontend instead.
* Force MingW to g++ as CXX.Force MingW to g++ as CXX.
* No need to specify -lm, libm is already part of the global LDFLAGS.
* Windows doesn't need -fPIC.
* The Vulkan renderer doesn't use glad.
This is an enhancement to the previous `yield` work:
* Don't enforce `-march=armv8-a` for aarch64 builds, because it is the
initial ARMv8 revision and compilers will either use that or something
newer.
* Refine preprocessor guards around `asm("yield");` so the code isn't
compiled in if unsupported by the current `-march='.
Submitted by @smcv in #535.
This was requested several times, the last time in pull request #523.
Only the optimization level, warning level and debug stuff may be
overridden. All other options are enforces because they're required.
While here add a new variable to force a debug build: `make DEBUG=1`.
Loading libcurl at runtime instead of linking it at compile time makes
things a lot easier and more reliable on Windows. On other platform
libcurl can be installed as optional dependency instead as an hard one.
This is a very first cut:
* It compiles
* It doesn't crash
What's missing:
* cmake integration
* CURL should be loaded dynamically
* Integration between download code and filesystem
* Likely UTF-8 stuff
* cl_http.c needs cleanup
* Windows support
I've chosen the minimal invasive way for this:
* Import miniz and remove -lz linker flags.
* Create a short header minizconf.h roviding everything we need
originally defined by zconf.h and not provided by miniz.
* Replace zlib.h with miniz.h and minizconf.h.
The input system backend was once used in the client and the renderers,
but for some years now it has been an integral part of the client only.
Move it there.
* CDA was only supported of the client was build with SDL 1.2. Our
Windows binaries had no CDA support for years, I'm pretty sure that
it never worked on Linux and no computer build after 2005 has even
the necessary hardware. So let's just remove it.
* X11GAMMA was a hack to work around SDL 1.2s inability to set the
gamma on newer xorg-server versions. It has been broken for some
time now an is rather ugly. Remove it.
This is the first step in removing SDL 1.2 support.
