From patchwork Tue Aug 21 01:54:26 2012
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Subject: [V2,1/2] qwt: fix link error when linking with ld-gold.
Date: Tue, 21 Aug 2012 01:54:26 -0000
From: Marc Reilly <marc@cpdesign.com.au>
X-Patchwork-Id: 34999
Message-Id: <1345514067-16394-2-git-send-email-marc@cpdesign.com.au>
To: openembedded-devel@lists.openembedded.org

ld-gold doesn't implicitly link with librt, this fixes an unresolved
symbol error when compiling qwt examples.

Signed-off-by: Marc Reilly <marc@cpdesign.com.au>

---
.../qwt/files/qwt6-fix-linking-with-ld-gold.patch  |   34 ++++++++++++++++++++
 meta-oe/recipes-qt/qwt/qwt.inc                     |    4 +-
 2 files changed, 36 insertions(+), 2 deletions(-)
 create mode 100644 meta-oe/recipes-qt/qwt/files/qwt6-fix-linking-with-ld-gold.patch

diff --git a/meta-oe/recipes-qt/qwt/files/qwt6-fix-linking-with-ld-gold.patch b/meta-oe/recipes-qt/qwt/files/qwt6-fix-linking-with-ld-gold.patch
new file mode 100644
index 0000000..1fdd9cf
--- /dev/null
+++ b/meta-oe/recipes-qt/qwt/files/qwt6-fix-linking-with-ld-gold.patch
@@ -0,0 +1,34 @@
+Upstream-Status: Pending
+
+diff -urpN qwt-6.0.1_orig/qwtbuild.pri qwt-6.0.1/qwtbuild.pri
+--- qwt-6.0.1_orig/qwtbuild.pri	2011-08-02 00:33:53.000000000 +1000
++++ qwt-6.0.1/qwtbuild.pri	2012-08-21 10:27:30.721990849 +1000
+@@ -67,3 +67,13 @@ unix {
+         error( "local build will conflict with $${QMAKE_LIBDIR_QT}/libqwt.*" )
+     }
+ }
++
++######################################################################
++# libs for building qwt
++######################################################################
++
++unix {
++    # Some linkers require explicit linking with librt (eg ld.gold)
++    LIBS += -lrt
++}
++
+diff -urpN qwt-6.0.1_orig/qwt.prf qwt-6.0.1/qwt.prf
+--- qwt-6.0.1_orig/qwt.prf	2011-08-02 00:33:51.000000000 +1000
++++ qwt-6.0.1/qwt.prf	2012-08-21 11:19:49.435240439 +1000
+@@ -9,6 +9,11 @@
+ 
+ include ( ./qwtconfig.pri )
+ 
++unix {
++
++	LIBS += -lrt
++}
++
+ contains(QWT_CONFIG, QwtDll) {
+ 
+     DEFINES *= QWT_DLL
diff --git a/meta-oe/recipes-qt/qwt/qwt.inc b/meta-oe/recipes-qt/qwt/qwt.inc
index a299ac8..a9289f7 100644
--- a/meta-oe/recipes-qt/qwt/qwt.inc
+++ b/meta-oe/recipes-qt/qwt/qwt.inc
@@ -6,8 +6,8 @@ LICENSE = "QWTv1.0"
 LIC_FILES_CHKSUM = "file://COPYING;md5=dac2743472b0462ff3cfb4af42051c88"
 
 SRC_URI = "${SOURCEFORGE_MIRROR}/qwt/qwt-${PV}.tar.bz2;name=qwt \
-	file://qwt6.patch \
-	"
+           file://qwt6.patch \
+           file://qwt6-fix-linking-with-ld-gold.patch"
 
 S = "${WORKDIR}/qwt-${PV}"