build: Use $(MKDIR_P) syntax suitable for install-sh

This fixes the build when a GNU-compatible `mkdir -p` is not available.

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=103521
[smcv: Add commit message]
Reviewed-by: Simon McVittie <smcv@collabora.com>
(cherry picked from commit c7d8b723eb53848f9a86f36d640ea5f564d34590)

diff --git a/test/Makefile.am b/test/Makefile.am
index bb64e453246c51c15e4b68d7c1ffa00874e1bcfe..bc5bc1852456564c38f8744022b19221cc204544 100644 (file)
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -543,7 +543,7 @@ EXTRA_DIST += $(static_data)
 ## copy tests to builddir so that generated tests and static tests
 ## are all in one place.
 all-local: copy-config-local uninstalled-config-local
-       $(AM_V_at)$(MKDIR_P) -m700 XDG_RUNTIME_DIR
+       $(AM_V_at)$(MKDIR_P) -m 700 XDG_RUNTIME_DIR
 
 copy-config-local:
        $(AM_V_at)$(MKDIR_P) data/valid-config-files/session.d