libqwt: new package

Patch initially written by Thomas Petazzoni, then reworked and updated
by Laurent Gonzalez, and finally cleaned up by Thomas again.

[Peter: generic-package, deps, download, rename to qwt, move under Qt]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/Config.in

@@ -143,6 +143,7 @@ comment "QT libraries and helper libraries"
 source "package/grantlee/Config.in"
 source "package/qextserialport/Config.in"
 source "package/qtuio/Config.in"
+source "package/qwt/Config.in"
 endif
 
 source "package/x11r7/Config.in"

package/qwt/Config.in

@@ -0,0 +1,22 @@
+config BR2_PACKAGE_QWT
+	bool "qwt"
+	depends on BR2_PACKAGE_QT_GUI_MODULE
+	help
+	  Qwt is a graphics extension to the Qt GUI application
+	  framework. It provides a 2D plotting widget and more.
+
+	  http://http://sourceforge.net/projects/qwt
+
+if BR2_PACKAGE_QWT
+
+config BR2_PACKAGE_QWT_SVG
+	bool "SVG support"
+	select BR2_PACKAGE_QT_SVG
+
+config BR2_PACKAGE_QWT_MATHML
+	bool "MathML support"
+
+endif
+
+comment "qwt depends on QT gui module"
+	depends on !BR2_PACKAGE_QT_GUI_MODULE

package/qwt/qwt-remove-installed-check.patch

@@ -0,0 +1,32 @@
+Remove useless check at build time
+
+At build time, Qwt looks whether the Qwt libraries are already
+installed in the destination directory, to avoid confusion between
+libraries installed system-wide and locally-built shared
+libraries. However, this behaviour conflicts with how Buildroot builds
+and installs libraries, so get rid of it.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+Index: qwt-6.0.0/qwtbuild.pri
+===================================================================
+--- qwt-6.0.0.orig/qwtbuild.pri	2011-09-12 19:37:35.663275952 +0200
++++ qwt-6.0.0/qwtbuild.pri	2011-09-12 19:37:41.913275949 +0200
+@@ -53,17 +53,3 @@
+ !debug_and_release {
+     OBJECTS_DIR       = obj
+ }
+-
+-unix {
+-
+-    exists( $${QMAKE_LIBDIR_QT}/libqwt.* ) {
+-
+-        # On some Linux distributions the Qwt libraries are installed 
+-        # in the same directory as the Qt libraries. Unfortunately
+-        # qmake always adds QMAKE_LIBDIR_QT at the beginning of the 
+-        # linker path, so that the installed libraries will be
+-        # used instead of the local ones.
+-
+-        error( "local build will conflict with $${QMAKE_LIBDIR_QT}/libqwt.*" )
+-    }
+-}

package/qwt/qwt.mk

@@ -0,0 +1,52 @@
+#############################################################
+#
+# qwt
+#
+#############################################################
+
+QWT_VERSION = 6.0.1
+QWT_SOURCE = qwt-$(QWT_VERSION).tar.bz2
+QWT_SITE = http://downloads.sourceforge.net/project/qwt/qwt/$(QWT_VERSION)
+QWT_INSTALL_STAGING = YES
+QWT_DEPENDENCIES = qt
+
+QWT_CONFIG  =    's%QWT_INSTALL_PREFIX.*/usr/local/.*%QWT_INSTALL_PREFIX = /usr%'
+QWT_CONFIG += -e 's/^.*QWT_CONFIG.*QwtDesigner.*$$/\# QWT_CONFIG += QwtDesigner/'
+QWT_CONFIG += -e 's%/features%/mkspecs/features%'
+
+ifeq ($(BR2_PACKAGE_QWT_SVG),y)
+	QWT_CONFIG += -e 's/^.*QWT_CONFIG.*QwtSvg.*$$/QWT_CONFIG += QwtSvg/'
+else
+	QWT_CONFIG += -e 's/^.*QWT_CONFIG.*QwtSvg.*$$/\# QWT_CONFIG += QwtSvg/'
+endif
+
+ifeq ($(BR2_PACKAGE_QWT_MATHML),y)
+	QWT_CONFIG += -e 's/^.*QWT_CONFIG.*QwtMathML.*$$/QWT_CONFIG += QwtMathML/'
+else
+	QWT_CONFIG += -e 's/^.*QWT_CONFIG.*QwtMathML.*$$/\# QWT_CONFIG += QwtMathML/'
+endif
+
+define QWT_CONFIGURE_CMDS
+	$(SED) $(QWT_CONFIG) $(@D)/qwtconfig.pri
+	(cd $(@D); $(QT_QMAKE))
+endef
+
+define QWT_BUILD_CMDS
+	$(MAKE) -C $(@D)
+endef
+
+# After installation, we fixup the INSTALL_PREFIX in qwtconfig.pri so
+# that when building with qmake, -L$(STAGING_DIR)/usr/lib is used and
+# not -L/usr/lib.
+define QWT_INSTALL_STAGING_CMDS
+	$(MAKE) -C $(@D) install INSTALL_ROOT=$(STAGING_DIR)
+	$(SED) "s%QWT_INSTALL_PREFIX = .*%QWT_INSTALL_PREFIX = $(STAGING_DIR)/usr%" \
+		$(STAGING_DIR)/usr/mkspecs/features/qwtconfig.pri
+endef
+
+define QWT_INSTALL_TARGET_CMDS
+	$(MAKE) -C $(@D) install INSTALL_ROOT=$(TARGET_DIR)
+	rm -Rf $(TARGET_DIR)/usr/mkspecs
+endef
+
+$(eval $(generic-package))