diff --git a/srcpkgs/glibc/template b/srcpkgs/glibc/template
index 6bffb908e8b..8251cec4086 100644
--- a/srcpkgs/glibc/template
+++ b/srcpkgs/glibc/template
@@ -22,6 +22,12 @@ long_desc="
  as C++ and Objective C; the runtime facilities of other programming
  languages use the C library to access the underlying operating system."
 
+# Build with -mno-tls-direct-seg-refs to avoid performance problems
+# with Xen on x86 32bit.
+if [ "${xbps_machine}" = "i686" ]; then
+	CFLAGS="-mno-tls-direct-seg-refs"
+fi
+
 # Don't check for deps here
 ignore_vdeps_dir="/usr/lib/gconv"