Fix rpath's for distributed libraries and binaries

During the build, the rpath's are the build directory, which won't
exist in a distributed package.

Author: d-torrance

M2/configure.ac

@@ -175,6 +175,7 @@ AC_CHECK_PROGS(CMP,cmp,false)
 AS_IF([test $CMP = false],
     AC_MSG_ERROR([cmp is required (try installing 'diffutils' package)]))
 AC_CHECK_PROGS([CMAKE], [cmake], [false])
+AC_CHECK_PROGS([CHRPATH], [chrpath], [false])
 
 AC_CHECK_TOOL(AR,ar,false)
 AC_CHECK_TOOL(AS,as,false)

M2/distributions/install/Makefile.in

@@ -11,6 +11,15 @@ install::
 	$(MKDIR_P) $(DESTDIR)@prefix@
 	$(T) -C @pre_prefix@      . | @TAR@ xfp - -C $(DESTDIR)@prefix@
 	$(T) -C @pre_exec_prefix@ . | @TAR@ xfp - -C $(DESTDIR)@exec_prefix@
+# fix rpath's
+ifeq (@CHRPATH@,chrpath)
+	for file in $(DESTDIR)@librariesdir@/* $(DESTDIR)@programsdir@/*; \
+	do                                                                \
+		if @CHRPATH@ $$file > /dev/null 2>&1;                     \
+		then @CHRPATH@ $$file -r @librariesdir@;                  \
+		fi;                                                       \
+	done
+endif
 
 install::$(DESTDIR)@infodir@/dir
 $(DESTDIR)@infodir@/dir :; @INSTALL_DATA@ @abs_top_srcdir@/files/info-dir-template $@