glibc: use -mno-tls-direct-seg-refs on i686, to avoid performance issues

with Xen.

--HG--
extra : convert_revision : 43faf4e611d5d6b402db5394d77429f6ca7d31cb

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"