Allow passing custom RUNTESTFLAGS with 'make installcheck'

git-svn-id: http://svn.osgeo.org/postgis/trunk@13478 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/GNUmakefile.in b/GNUmakefile.in
index ac9b0bac76e85a8816d5d462618a0e47a5cc390d..a7492c06d6790caae34fc961411f00228b90db36 100644 (file)
--- a/GNUmakefile.in
+++ b/GNUmakefile.in
@@ -36,7 +36,7 @@ test: check
 check: all docs-check
 
 installcheck:
-       RUNTESTFLAGS=--extension $(MAKE) check
+       RUNTESTFLAGS="$(RUNTESTFLAGS) --extension" $(MAKE) check
 
 distclean: clean distclean-local