testsuite: add tests for variable whitespace

Makefile.am

@@ -64,6 +64,7 @@ EXTRA_DIST =	pkg.m4 \
 		tests/lib1/provides-request-simple.pc \
 		tests/lib1/flag-order-1.pc \
 		tests/lib1/flag-order-3.pc \
+		tests/lib1/variable-whitespace.pc \
 		tests/test_env.sh \
 		$(test_scripts) \
 		doc/conf.py \

tests/lib1/variable-whitespace.pc

@@ -0,0 +1,11 @@
+
+prefix=/test  
+exec_prefix= ${prefix}
+libdir= ${prefix}/lib64
+includedir=${prefix}/include
+
+Name: variable-whitespace
+Description: A test for variable whitespace
+Version: 2.12.3
+Libs: -lvariable-whitespace -L${libdir}
+Cflags:   -I${includedir}

tests/parser.sh

@@ -17,7 +17,8 @@ tests_init \
 	flag_order_2 \
 	flag_order_3 \
 	flag_order_4 \
-	quoted
+	quoted \
+	variable_whitespace
 
 comments_body()
 {
@@ -143,3 +144,11 @@ flag_order_4_body()
 		-o inline:"-L/test/lib -Wl,--start-group -lfoo -lbar -Wl,--end-group -lfoo  \n" \
 		pkgconf --libs flag-order-3 foo
 }
+
+variable_whitespace_body()
+{
+	export PKG_CONFIG_PATH="${selfdir}/lib1"
+	atf_check \
+		-o inline:"-I/test/include  \n" \
+		pkgconf --cflags variable-whitespace
+}