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Don't define memcpy(), memset() when using static VC runtime.

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The linker will complain about duplicated symbols otherwise
(see #3662, #5156).
This commit is contained in:
Frank Richter 2022-05-07 14:52:35 +02:00 committed by Sam Lantinga
parent 8cd908e0b9
commit 0e63b514d5
1 changed files with 4 additions and 3 deletions
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7
src/stdlib/SDL_stdlib.c
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@ -549,8 +549,9 @@ int SDL_isblank(int x) { return ((x) == ' ') || ((x) == '\t'); }
__declspec(selectany) int _fltused = 1; __declspec(selectany) int _fltused = 1;
#endif #endif
/* The optimizer on Visual Studio 2005 and later generates memcpy() and memset() calls */ /* The optimizer on Visual Studio 2005 and later generates memcpy() and memset() calls.
#if _MSC_VER >= 1400 Always provide it for the SDL2 DLL, but skip it when building static lib w/ static runtime. */
#if (_MSC_VER >= 1400) && (!defined(_MT) || defined(DLL_EXPORT))
extern void *memcpy(void* dst, const void* src, size_t len); extern void *memcpy(void* dst, const void* src, size_t len);
#pragma intrinsic(memcpy) #pragma intrinsic(memcpy)
@ -570,7 +571,7 @@ memset(void *dst, int c, size_t len)
{ {
return SDL_memset(dst, c, len); return SDL_memset(dst, c, len);
} }
#endif /* _MSC_VER >= 1400 */ #endif /* (_MSC_VER >= 1400) && (!defined(_MT) || defined(DLL_EXPORT)) */
#ifdef _M_IX86 #ifdef _M_IX86