diff --git a/platform-independent/c/cli/build b/platform-independent/c/cli/build
index 4e9695e3..cca35eca 100755
--- a/platform-independent/c/cli/build
+++ b/platform-independent/c/cli/build
@@ -222,7 +222,7 @@ use_mpw_json() {
 }
 use_mpw_xml() {
     local requisite=$1
-    use mpw_xml "$requisite" xml2 && cflags+=( -D"MPW_XML=1" -I"/usr/include/libxml2" -I"/usr/local/include/libxml2" ) ||:
+    use mpw_xml "$requisite" xml2 && cflags+=( $(xml2-config --cflags) ) ldflags+=( $(xml2-config --libs) ) ||:
 }