--- configure.ac
+++ configure.ac
@@ -47,10 +47,12 @@
 	PKG_CHECK_MODULES([LCMS2],[lcms2],[
 		CPPFLAGS="$CPPFLAGS $LCMS2_CFLAGS -DUSE_LCMS2"
 		LDFLAGS="$LDFLAGS $LCMS2_LIBS"
+		AC_SUBST([PACKAGE_REQUIRES],[lcms2])
 	],[
 	PKG_CHECK_MODULES([LCMS],[lcms],[
 		CPPFLAGS="$CPPFLAGS $LCMS_CFLAGS -DUSE_LCMS"
 		LDFLAGS="$LDFLAGS $LCMS_LIBS"
+		AC_SUBST([PACKAGE_REQUIRES],[lcms])
 	],[
 		AC_MSG_WARN([LCMS support cannot be enabled])
 	])
--- libraw.pc.in
+++ libraw.pc.in
@@ -5,7 +5,7 @@
 
 Name: libraw
 Description: Raw image decoder library (non-thread-safe)
-Requires:  lcms
-Version: 0.9.1
-Libs: -L${libdir} -lraw -lstdc++ @LCMS_LIBS@
-Cflags: -I${includedir}/libraw@PC_OPENMP@
+Requires: @PACKAGE_REQUIRES@
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lraw -lstdc++@PC_OPENMP@
+Cflags: -I${includedir}/libraw
--- libraw_r.pc.in
+++ libraw_r.pc.in
@@ -5,7 +5,7 @@
 
 Name: libraw
 Description: Raw image decoder library (thread-safe)
-Requires:  lcms
-Version: 0.9.1
-Libs: -L${libdir} -lraw_r -lstdc++ @LCMS_LIBS@
-Cflags: -I${includedir}/libraw@PC_OPENMP@
+Requires: @PACKAGE_REQUIRES@
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lraw_r -lstdc++@PC_OPENMP@
+Cflags: -I${includedir}/libraw