plugin-support.exp: Do not prefix $GMPINC with -I.

	* lib/plugin-support.exp: Do not prefix $GMPINC with -I.

From-SVN: r147197

gcc/testsuite/ChangeLog

+2009-05-06  Diego Novillo  <dnovillo@google.com>
+
+	* lib/plugin-support.exp: Do not prefix $GMPINC with -I.
+
 2009-05-06  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* gfortran.dg/pr40021.f: Moved to ...

gcc/testsuite/lib/plugin-support.exp

@@ -82,7 +82,7 @@ proc plugin-test-execute { plugin_src plugin_tests } {
     set gcc_objdir "$objdir/../../.."
     set includes "-I. -I${srcdir} -I${gcc_srcdir}/gcc -I${gcc_objdir}/gcc \
                   -I${gcc_srcdir}/include -I${gcc_srcdir}/libcpp/include \
-                  -I$GMPINC"
+                  $GMPINC"
 
     set optstr "$includes $extra_flags -DIN_GCC -fPIC -shared"