diff -r f675a4e99fb5 -r 047f8a19f7fa make/project.xml
--- a/make/project.xml	Sun Nov 30 13:55:12 2025 +0100
+++ b/make/project.xml	Sun Nov 30 14:08:52 2025 +0100
@@ -9,12 +9,9 @@
         <var name="LIBVERSION">6.0.0</var>
         <var name="LIBVERSION_MAJOR">6</var>
         <var name="root_dir" exec="true">pwd</var>
-        <var name="build_dir">\${root_dir}/build</var>
-        <var name="docs_dir">\${root_dir}/build/docs</var>
-        <var name="dist_dir">\${root_dir}/dist</var>
-        <var name="DOXYGEN" exec="true" option-help="path of the Doxygen executable">
-            command -v doxygen || echo '/bin/false'
-        </var>
+        <var name="build_dir">${root_dir}/build</var>
+        <var name="docs_dir">${root_dir}/build/docs</var>
+        <var name="dist_dir">${root_dir}/dist</var>
         <var name="MKDIR">/bin/mkdir -p</var>
         <var name="RMFILE">/bin/rm -f</var>
         <var name="RMDIR">/bin/rm -f -R</var>
@@ -23,10 +20,19 @@
         <var name="SYMLINK">/bin/ln -s</var>
     </config>
     <config platform="bsd">
-        <var name="pkgconfigdir">\${exec_prefix}/libdata/pkgconfig</var>
+        <var name="pkgconfigdir" option-help="location of the *.pc files">
+            ${exec_prefix}/libdata/pkgconfig
+        </var>
     </config>
     <config not="bsd">
-        <var name="pkgconfigdir">\${libdir}/pkgconfig</var>
+        <var name="pkgconfigdir" option-help="location of the *.pc files">
+            ${libdir}/pkgconfig
+        </var>
+    </config>
+    <config>
+        <var name="DOXYGEN" exec="true" option-help="path of the Doxygen executable">
+            command -v doxygen || echo '/bin/false'
+        </var>
     </config>
 
     <dependency platform="macos">