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File Ipopt-pkg-config-path-fix.patch of Package Ipopt

--- Ipopt-3.11.7/Ipopt/Makefile.am.orig	2014-01-16 14:44:22.141339481 +0100
+++ Ipopt-3.11.7/Ipopt/Makefile.am	2014-01-16 14:45:31.203219899 +0100
@@ -159,7 +159,7 @@
 install-data-hook:
 	@$(mkdir_p) "$(addlibsdir)"
 if COIN_HAS_PKGCONFIG
-	PKG_CONFIG_PATH=@COIN_PKG_CONFIG_PATH@ \
+	PKG_CONFIG_PATH=$(DESTDIR)/$(pkgconfiglibdir) \
 	$(PKG_CONFIG) --libs ipopt > $(addlibsdir)/ipopt_addlibs_cpp.txt
 else
 if COIN_CXX_IS_CL
--- Ipopt-3.11.7/Ipopt/Makefile.in.orig	2014-01-16 14:44:33.356320086 +0100
+++ Ipopt-3.11.7/Ipopt/Makefile.in	2014-01-16 14:46:08.642154925 +0100
@@ -1080,7 +1080,7 @@
 #   since pkg-config may have reordered the flags from FLIBS, we take them out one by one
 install-data-hook:
 	@$(mkdir_p) "$(addlibsdir)"
-@COIN_HAS_PKGCONFIG_TRUE@	PKG_CONFIG_PATH=@COIN_PKG_CONFIG_PATH@ \
+@COIN_HAS_PKGCONFIG_TRUE@	PKG_CONFIG_PATH=$(DESTDIR)/$(pkgconfiglibdir) \
 @COIN_HAS_PKGCONFIG_TRUE@	$(PKG_CONFIG) --libs ipopt > $(addlibsdir)/ipopt_addlibs_cpp.txt
 @COIN_CXX_IS_CL_TRUE@@COIN_HAS_PKGCONFIG_FALSE@	echo "-libpath:`$(CYGPATH_W) @abs_lib_dir@` libipopt.lib @IPOPTLIB_LIBS_INSTALLED@" > $(addlibsdir)/ipopt_addlibs_cpp.txt
 @COIN_CXX_IS_CL_FALSE@@COIN_HAS_PKGCONFIG_FALSE@	echo "-L@abs_lib_dir@ -lipopt @IPOPTLIB_LIBS_INSTALLED@" > $(addlibsdir)/ipopt_addlibs_cpp.txt