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cmake: get rid of the duplicated _USE_MATH_DEFINES

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- define _USE_MATH_DEFINES in SDL_stdinc.h only
- define _USE_MATH_DEFINES if not defined already
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pionere 2022-11-22 10:48:23 +01:00 • committed by Sam Lantinga
parent ed8637f437
commit 68b30d24e0
2 changed files with 1 additions and 2 deletions
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1
CMakeLists.txt
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@ -999,7 +999,6 @@ if(SDL_LIBC)
endforeach() endforeach()
set(HAVE_ALLOCA 1) set(HAVE_ALLOCA 1)
check_symbol_exists(M_PI math.h HAVE_M_PI) check_symbol_exists(M_PI math.h HAVE_M_PI)
target_compile_definitions(sdl-build-options INTERFACE "-D_USE_MATH_DEFINES") # needed for M_PI
set(STDC_HEADERS 1) set(STDC_HEADERS 1)
else() else()
set(HAVE_LIBC TRUE) set(HAVE_LIBC TRUE)

2
include/SDL_stdinc.h
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@ -80,7 +80,7 @@
# include <ctype.h> # include <ctype.h>
#endif #endif
#ifdef HAVE_MATH_H #ifdef HAVE_MATH_H
# if defined(_MSC_VER) # if defined(_MSC_VER) && !defined(_USE_MATH_DEFINES)
/* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on /* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on
Visual Studio. See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx Visual Studio. See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx
for more information. for more information.