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Force C standard to gnu99 in cmake builds.

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The Makefiles forces gnu99 since ages. Additionally gcc15 started to
default to C23 and our code doesn't (yet) build with it. Reported in
issue #20.
This commit is contained in:
Yamagi 2025-02-22 11:29:42 +01:00
parent 0a7e3c9c78
commit 869b18c329
1 changed files with 2 additions and 1 deletions
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3
CMakeLists.txt
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@ -13,10 +13,11 @@ project(yquake2-ctf)
# Enforce compiler flags (GCC / Clang compatible, yquake2
# won't build with another compiler anyways)
# -std=gnu99 -> Force same C standard as in the Makefile
# -Wall -> More warnings
# -fno-strict-aliasing -> Quake 2 is far away from strict aliasing
# -fwrapv -> Make signed integer overflows defined
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -fno-strict-aliasing -fwrapv")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -Wall -fno-strict-aliasing -fwrapv")
# Use -O2 as maximum optimization level. -O3 has it's problems with yquake2.
string(REPLACE "-O3" "-O2" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}")