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games/eureka: fix build on powerpc64 head

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clang can't build this code:
In file included from src/e_basis.cc:27:
In file included from src/main.h:86:
src/sys_endian.h:66:58: error: unsupported inline asm: input with type 'int' matching output with type 'u16_t' (aka 'unsigned short')
  __asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (x >> 8), "r" (x));

Approved by:	tier 2 blanket
This commit is contained in:
Piotr Kubaj 2020-12-18 15:09:10 +00:00
parent 19cb0dd149
commit 7fe4635b7c
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=558381
1 changed files with 11 additions and 0 deletions
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games/eureka/files/patch-src_sys__endian.h Normal file
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@ -0,0 +1,11 @@
--- src/sys_endian.h.orig 2020-12-18 15:02:12 UTC
+++ src/sys_endian.h
@@ -58,7 +58,7 @@ static inline u16_t UT_Swap16(u16_t x)
__asm__("xchgb %b0,%h0" : "=Q" (x) : "0" (x));
return x;
}
-#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
+#elif defined(__GNUC__) && !defined(__clang__) && (defined(__powerpc__) || defined(__ppc__))
static inline u16_t UT_Swap16(u16_t x)
{
u16_t result;