wpewebkit: Fix build failure on musl (roundeven and roundevenf)

While building WPEWebKit on musl-based systems, errors occur due to
the absence of roundevenf and roundeven functions. These are not
available in musl and other non-glibc platforms.

This patch provides fallback implementations for both functions.

Upstream: https://bugs.webkit.org/show_bug.cgi?id=281216

recipes-browser/wpewebkit/wpewebkit/0001-JSC-Fix-build-failure-on-musl-Add-fallback-for-round.patch

@@ -0,0 +1,59 @@
+From 3c54d2278eba24fe75ff2c04b74807e118ed7562 Mon Sep 17 00:00:00 2001
+From: Pablo Saavedra <[email protected]>
+Date: Thu, 10 Oct 2024 15:11:47 +0200
+Subject: [PATCH] [JSC] Fix build failure on musl: Add fallback for roundeven
+ and roundevenf https://bugs.webkit.org/show_bug.cgi?id=281216
+
+Reviewed by NOBODY (OOPS!).
+
+While building WPEWebKit on musl-based systems, errors occur due to
+the absence of roundevenf and roundeven functions. These are not
+available in musl and other non-glibc platforms.
+
+This patch provides fallback implementations for both functions.
+
+* Source/JavaScriptCore/runtime/MathCommon.cpp:
+(JSC::Math::roundevenf):
+(JSC::Math::roundeven):
+---
+ Source/JavaScriptCore/runtime/MathCommon.cpp | 22 ++++++++++++++++++++
+ 1 file changed, 22 insertions(+)
+
+Upstream-Status: Submitted [https://bugs.webkit.org/show_bug.cgi?id=281216]
+
+diff --git a/Source/JavaScriptCore/runtime/MathCommon.cpp b/Source/JavaScriptCore/runtime/MathCommon.cpp
+index 0cd276b20126..625f9146c1ea 100644
+--- a/Source/JavaScriptCore/runtime/MathCommon.cpp
++++ b/Source/JavaScriptCore/runtime/MathCommon.cpp
+@@ -635,6 +635,28 @@ JSC_DEFINE_NOEXCEPT_JIT_OPERATION(f64_nearest, double, (double operand))
+     return std::nearbyint(operand);
+ }
+
++#if OS(LINUX) && !defined(__GLIBC__)
++static inline float roundevenf(float operand)
++{
++    float rounded = roundf(operand);
++    if (fabsf(operand - rounded) == 0.5f) {
++        if (fmod(rounded, 2.0f) != 0.0f)
++            return rounded - copysignf(1.0f, operand);
++    }
++    return rounded;
++}
++
++static inline double roundeven(double operand)
++{
++    double rounded = round(operand);
++    if (fabs(operand - rounded) == 0.5) {
++        if (fmod(rounded, 2.0) != 0.0)
++            return rounded - copysign(1.0, operand);
++    }
++    return rounded;
++}
++#endif
++
+ JSC_DEFINE_NOEXCEPT_JIT_OPERATION(f32_roundeven, float, (float operand)) { return roundevenf(operand); }
+ JSC_DEFINE_NOEXCEPT_JIT_OPERATION(f64_roundeven, double, (double operand)) { return roundeven(operand); }
+ JSC_DEFINE_NOEXCEPT_JIT_OPERATION(f32_trunc, float, (float operand)) { return std::trunc(operand); }
+-- 
+2.43.0
+

recipes-browser/wpewebkit/wpewebkit_2.46.1.bb

@@ -3,7 +3,9 @@ require conf/include/devupstream.inc
 
 FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
 
-SRC_URI = "https://wpewebkit.org/releases/${BPN}-${PV}.tar.xz;name=tarball"
+SRC_URI = "https://wpewebkit.org/releases/${BPN}-${PV}.tar.xz;name=tarball \
+           file://0001-JSC-Fix-build-failure-on-musl-Add-fallback-for-round.patch \
+          "
 
 SRC_URI[tarball.sha256sum] = "1e0aaf870f36001c42b1ce5a2027b4101bed878746e437cc6d6fed0693afe9ad"