@@ -1,11 +1,12 @@
 #!/bin/sh
 prefix="@prefix@"
 exec_prefix="@exec_prefix@"
 libdir="@libdir@"
 CFLAGS=""
-CPPFLAGS="-I@includedir@ @ENDIANESS_DEF@ @ASPRINTF_DEF@ @OFPLUGIN_DEF@"
+CPPFLAGS="-I@includedir@ -DOF_CONFIGURED @ENDIANESS_DEF@ @ASPRINTF_DEF@"
+CPPFLAGS="$CPPFLAGS @OFPLUGIN_DEF@"
 CXXFLAGS=""
 OBJCFLAGS="-fobjc-exceptions -fconstant-string-class=OFConstString"
 OBJCFLAGS="$OBJCFLAGS @NO_CONST_CFSTRINGS@"
 LDFLAGS="@RPATH_LDFLAGS@"
 LIBS="-L${libdir} -lobjfw @LIBS@"