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Forgot to add patch along with the fix

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kmos
2026-03-28 21:56:53 +00:00
parent 669a18496d
commit a578463d6f
1 changed files with 42 additions and 0 deletions
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multimedia/vvenc/patches/patch-thirdparty_simde_simde-math_h
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@@ -0,0 +1,42 @@
math: guard __builtin_roundeven against non-glibc platforms
Index: thirdparty/simde/simde-math.h
--- thirdparty/simde/simde-math.h.orig
+++ thirdparty/simde/simde-math.h
@@ -1265,9 +1265,17 @@ simde_math_fpclass(double v, const int imm8) {
#endif
#if !defined(simde_math_roundeven)
+ /* GCC 10+ lowers __builtin_roundeven to a libm roundeven() call when
+ * the target has no native instruction. roundeven() is C23 and only
+ * available in glibc >= 2.25; other platforms (musl, OpenBSD, MinGW,
+ * etc.) lack the symbol and produce a link error. Clang lowers the
+ * builtin to an llvm.roundeven.* intrinsic which is always emitted
+ * inline (no libm dependency), so the GCC guard is not needed there. */
#if \
- ((!defined(HEDLEY_EMSCRIPTEN_VERSION) || HEDLEY_EMSCRIPTEN_VERSION_CHECK(3, 1, 43)) && HEDLEY_HAS_BUILTIN(__builtin_roundeven)) || \
- HEDLEY_GCC_VERSION_CHECK(10,0,0)
+ ((!defined(HEDLEY_EMSCRIPTEN_VERSION) || HEDLEY_EMSCRIPTEN_VERSION_CHECK(3, 1, 43)) && \
+ HEDLEY_HAS_BUILTIN(__builtin_roundeven) && \
+ (!HEDLEY_GCC_VERSION_CHECK(10,0,0) || \
+ (defined(__GLIBC__) && ((__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 25)))))
#define simde_math_roundeven(v) __builtin_roundeven(v)
#elif defined(simde_math_round) && defined(simde_math_fabs)
static HEDLEY_INLINE
@@ -1285,9 +1293,14 @@ simde_math_fpclass(double v, const int imm8) {
#endif
#if !defined(simde_math_roundevenf)
+ /* Same rationale as simde_math_roundeven above; applies to the float
+ * variant. GCC 10+ requires glibc >= 2.25 for roundevenf(); Clang
+ * is always safe via llvm.roundeven.f32 inline expansion. */
#if \
- ((!defined(HEDLEY_EMSCRIPTEN_VERSION) || HEDLEY_EMSCRIPTEN_VERSION_CHECK(3, 1, 43)) && HEDLEY_HAS_BUILTIN(__builtin_roundevenf)) || \
- HEDLEY_GCC_VERSION_CHECK(10,0,0)
+ ((!defined(HEDLEY_EMSCRIPTEN_VERSION) || HEDLEY_EMSCRIPTEN_VERSION_CHECK(3, 1, 43)) && \
+ HEDLEY_HAS_BUILTIN(__builtin_roundevenf) && \
+ (!HEDLEY_GCC_VERSION_CHECK(10,0,0) || \
+ (defined(__GLIBC__) && ((__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 25)))))
#define simde_math_roundevenf(v) __builtin_roundevenf(v)
#elif defined(simde_math_roundf) && defined(simde_math_fabsf)
static HEDLEY_INLINE