diff --git a/src/buildtools/configure.json b/src/buildtools/configure.json
index 88d1790..ed4c3d4 100644
--- a/src/buildtools/configure.json
+++ b/src/buildtools/configure.json
@@ -270,8 +270,10 @@
             "test": {
                 "include": "features.h",
                 "tail": [
+                    "#if defined(__GLIBC__)",
                     "#if __GLIBC__ < 2 || __GLIBC_MINOR__ < 17",
                     "#error glibc versions below 2.17 are not supported",
+                    "#endif",
                     "#endif"
                 ]
             }
diff --git a/src/core/api/qtbug-61521.cpp b/src/core/api/qtbug-61521.cpp
index 002a1af..01c81ac 100644
--- a/src/core/api/qtbug-61521.cpp
+++ b/src/core/api/qtbug-61521.cpp
@@ -111,7 +111,11 @@ SHIM_HIDDEN void* ShimValloc(size_t size) {
 }
 
 SHIM_HIDDEN void* ShimPvalloc(size_t size) {
+#if defined(__GLIBC__)
     return pvalloc(size);
+#else
+    return valloc((size+4095)&~4095);
+#endif
 }
 
 SHIM_HIDDEN int ShimPosixMemalign(void** r, size_t a, size_t s) {