[gobject-introspection] Prepend to $LD_LIBRARY_PATH not append

[Owen Taylor <otaylor src gnome org>]

commit ada09ae5027c16d75050bdfb70074e1e6ad880b6
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Thu Aug 13 16:03:29 2009 -0400

    Prepend to $LD_LIBRARY_PATH not append
    
    We want to extend $LD_LIBRARY_PATH from the front so that uninstalled
    libraries take precedence over installed libraries.
    
    http://bugzilla.gnome.org/show_bug.cgi?id=591740

 gir/Makefile.am           |    2 +-
 tests/scanner/Makefile.am |    4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gir/Makefile.am b/gir/Makefile.am
index 9d7d8ff..ab8c2c8 100644
--- a/gir/Makefile.am
+++ b/gir/Makefile.am
@@ -205,7 +205,7 @@ girdir = $(GIR_DIR)
 dist_gir_DATA = $(GIRSOURCES)
 
 %.typelib: %.gir $(top_builddir)/tools/g-ir-compiler$(EXEEXT)
-	LD_LIBRARY_PATH=$${LD_LIBRARY_PATH:+$$LD_LIBRARY_PATH:}:$(top_builddir)/girepository/.libs:$(builddir)/.libs $(DEBUG) $(top_builddir)/tools/g-ir-compiler$(EXEEXT) --includedir=. $(G_IR_COMPILER_OPTS) $< -o $@
+	LD_LIBRARY_PATH=$(top_builddir)/girepository/.libs:$(builddir)/.libs$${LD_LIBRARY_PATH:+:$$LD_LIBRARY_PATH} $(DEBUG) $(top_builddir)/tools/g-ir-compiler$(EXEEXT) --includedir=. $(G_IR_COMPILER_OPTS) $< -o $@
 
 typelibsdir = $(libdir)/girepository-1.0
 typelibs_DATA = $(GIRSOURCES:.gir=.typelib)
diff --git a/tests/scanner/Makefile.am b/tests/scanner/Makefile.am
index 3ed5320..9ad6ec3 100644
--- a/tests/scanner/Makefile.am
+++ b/tests/scanner/Makefile.am
@@ -143,10 +143,10 @@ post-check:
 	@true
 
 %.typelib: %.gir $(top_builddir)/tools/g-ir-compiler$(EXEEXT) Makefile
-	LD_LIBRARY_PATH=$${LD_LIBRARY_PATH:+$$LD_LIBRARY_PATH:}:$(top_builddir)/girepository/.libs $(top_builddir)/tools/g-ir-compiler --includedir=. --includedir=$(top_builddir)/gir $< -o $@
+	LD_LIBRARY_PATH=$(top_builddir)/girepository/.libs$${LD_LIBRARY_PATH:+:$$LD_LIBRARY_PATH} $(top_builddir)/tools/g-ir-compiler --includedir=. --includedir=$(top_builddir)/gir $< -o $@
 
 %.tgir: %.typelib $(top_builddir)/tools/g-ir-generate$(EXEEXT) Makefile
-	LD_LIBRARY_PATH=$${LD_LIBRARY_PATH:+$$LD_LIBRARY_PATH:}:$(top_builddir)/girepository/.libs $(top_builddir)/tools/g-ir-generate --includedir=. --includedir=$(top_builddir)/gir $< -o $@
+	LD_LIBRARY_PATH=$(top_builddir)/girepository/.libs$${LD_LIBRARY_PATH:+:$$LD_LIBRARY_PATH} $(top_builddir)/tools/g-ir-generate --includedir=. --includedir=$(top_builddir)/gir $< -o $@
 
 %.tgir.check: %.tgir
 	@diff -u -U 10 $(srcdir)/$*-expected.tgir $*.tgir; \