Index: uspace/lib/c/meson.build
===================================================================
--- uspace/lib/c/meson.build	(revision 740e9527595cfbfad00f55ea5c977300666b8ab5)
+++ uspace/lib/c/meson.build	(revision b2695b939449fec6cfdf61b4b470205152d1316d)
@@ -22,9 +22,9 @@
 
 if CONFIG_DEVEL_FILES
-	uspace_lib_install_script_text += 'mkdir -p "${MESON_INSTALL_DESTDIR_PREFIX}include/libc"'
+	uspace_lib_install_script_text += 'mkdir -p "${DESTDIR}include/libc"'
 
 	foreach idir : incdirs
 		_sdir = meson.current_source_dir() / idir
-		uspace_lib_install_script_text += 'cp -R -L -T "@0@" "${MESON_INSTALL_DESTDIR_PREFIX}include/libc"'.format(_sdir)
+		uspace_lib_install_script_text += 'cp -R -L -T "@0@" "${DESTDIR}include/libc"'.format(_sdir)
 	endforeach
 endif
Index: uspace/lib/meson.build
===================================================================
--- uspace/lib/meson.build	(revision 740e9527595cfbfad00f55ea5c977300666b8ab5)
+++ uspace/lib/meson.build	(revision b2695b939449fec6cfdf61b4b470205152d1316d)
@@ -123,5 +123,5 @@
 			if CONFIG_DEVEL_FILES and installed_libs.contains(l)
 				_sdir = meson.current_source_dir() / l / 'include'
-				uspace_lib_install_script_text += 'cp -R -L -T "@0@" "${MESON_INSTALL_DESTDIR_PREFIX}include/lib@1@"'.format(_sdir, l)
+				uspace_lib_install_script_text += 'cp -R -L -T "@0@" "${DESTDIR}include/lib@1@"'.format(_sdir, l)
 			endif
 		else
@@ -130,6 +130,6 @@
 			if CONFIG_DEVEL_FILES and installed_libs.contains(l)
 				_sdir = meson.current_source_dir() / l
-				uspace_lib_install_script_text += 'mkdir -p "${MESON_INSTALL_DESTDIR_PREFIX}include/lib@0@"'.format(l)
-				uspace_lib_install_script_text += 'cp -L -t "${MESON_INSTALL_DESTDIR_PREFIX}include/lib@0@" "@1@"/*.h'.format(l, _sdir)
+				uspace_lib_install_script_text += 'mkdir -p "${DESTDIR}include/lib@0@"'.format(l)
+				uspace_lib_install_script_text += 'cp -L -t "${DESTDIR}include/lib@0@" "@1@"/*.h'.format(l, _sdir)
 			endif
 		endif