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[Qemu-devel] [PATCH] configure: improve multiarch support for pkgconfig


From: John Snow
Subject: [Qemu-devel] [PATCH] configure: improve multiarch support for pkgconfig
Date: Thu, 9 Apr 2015 17:36:12 -0400

This will improve the multi-arch compilation for hosts using gcc.
configurations using clang won't see an improvement, but also won't
see a regression.

Signed-off-by: John Snow <address@hidden>
---
 configure | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/configure b/configure
index 826d6fd..d27729a 100755
--- a/configure
+++ b/configure
@@ -1759,6 +1759,20 @@ if ! has "$pkg_config_exe"; then
 fi
 
 ##########################################
+# pkg-config multi-arch probe
+
+if $cc -print-multiarch >/dev/null 2>&1; then
+    mlibdir=$($cc -print-multiarch $QEMU_CFLAGS)
+fi
+if test -z "${mlibdir}"; then
+    mlibdir=$($cc --print-multi-os-directory $QEMU_CFLAGS)
+fi
+
+if [ -n "${mlibdir}" ] && [ -d "/usr/lib/${mlibdir}/pkgconfig" ]; then
+    export PKG_CONFIG_LIBDIR="/usr/lib/${mlibdir}/pkgconfig"
+fi
+
+##########################################
 # NPTL probe
 
 if test "$linux_user" = "yes"; then
-- 
2.1.0




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