check: Test version comparisons within Requires fields

Verification of versions in Requires and friends happens differently
than the version comparison for command-line packages.

check/Makefile.am

@@ -14,6 +14,7 @@ TESTS = \
 	check-whitespace \
 	check-cmd-options \
 	check-version \
+	check-requires-version \
 	check-print-options \
 	check-path \
 	check-sysroot \
@@ -38,4 +39,7 @@ EXTRA_DIST = \
 	sub/sub2.pc \
 	inst.pc \
 	inst-uninstalled.pc \
-	other.pc
+	other.pc \
+	requires-version-1.pc \
+	requires-version-2.pc \
+	requires-version-3.pc

check/check-requires-version

@@ -0,0 +1,17 @@
+#! /bin/sh
+
+set -e
+
+. ${srcdir}/common
+
+# Test != comparison fails
+RESULT=""
+EXPECT_RETURN=1 run_test --exists requires-version-1
+
+# Test >=, > and = succeed
+RESULT=""
+run_test --exists requires-version-2
+
+# Test <=, < and != succeed
+RESULT=""
+run_test --exists requires-version-3

check/requires-version-1.pc

@@ -0,0 +1,4 @@
+Name: Requires version test package 1
+Description: Test version comparisons in Requires
+Version: 1.0.0
+Requires: public-dep != 1.0.0

check/requires-version-2.pc

@@ -0,0 +1,5 @@
+Name: Requires version test package 2
+Description: Test version comparisons in Requires
+Version: 1.0.0
+Requires: public-dep >= 1 simple > 0
+Requires.private: private-dep = 1.0.0

check/requires-version-3.pc

@@ -0,0 +1,5 @@
+Name: Requires version test package 3
+Description: Test version comparisons in Requires
+Version: 1.0.0
+Requires: public-dep <= 1.0.0 simple < 999
+Requires.private: private-dep != 4.0