diff --git a/.cirrus.yml b/.cirrus.yml
index 460ae1706..922045239 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -1,6 +1,23 @@
 container:
   image: debian:trixie-slim
 
+task:
+  name: Alpine (musl + GCC + SIMDE_NO_NATIVE)
+  skip: $BRANCH == "master" || ($BRANCH != 'ci/cirrus' && $BRANCH =~ '^ci/.+')
+  container:
+    image: alpine:latest
+  env:
+    CC: gcc
+    CXX: g++
+  install_dependencies_script:
+    - apk add --no-cache build-base meson ninja python3
+  configure_script:
+    - meson setup build -Dc_args="-DSIMDE_NO_NATIVE -Wextra -Werror" -Dcpp_args="-DSIMDE_NO_NATIVE -Wextra -Werror"
+  build_script:
+    - ninja -C build -v -j 3
+  test_script:
+    - ninja -C build -v test
+
 task:
   name: Sanitizers
   skip: $BRANCH == "master" || ($BRANCH != 'ci/cirrus' && $BRANCH =~ '^ci/.+')
diff --git a/simde/simde-math.h b/simde/simde-math.h
index a98384a8d..9685d903d 100644
--- a/simde/simde-math.h
+++ b/simde/simde-math.h
@@ -1266,9 +1266,17 @@ 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
@@ -1286,9 +1294,14 @@ 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