[glib] glib-tap: Add missing mkdir for .test generation rule

[Philip Withnall <pwithnall src gnome org>]

commit b97e5cb21bf97bcdd8c393f032c6eef453f4f410
Author: Philip Withnall <withnall endlessm com>
Date:   Fri Nov 24 12:24:31 2017 +0000

    glib-tap: Add missing mkdir for .test generation rule
    
    We can’t guarantee that the builddir we’re generating in actually exists
    — if doing a clean build with builddir ≠ srcdir, and there are no other
    rules which generate build products in builddir, the .test generation
    rule can fail. This happens for flatpak-builder.git for me.
    
    Try to avoid that by explicitly creating the builddir.
    
    Signed-off-by: Philip Withnall <withnall endlessm com>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=790785

 glib-tap.mk |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/glib-tap.mk b/glib-tap.mk
index 5f25b62..e73438d 100644
--- a/glib-tap.mk
+++ b/glib-tap.mk
@@ -125,7 +125,8 @@ installed_testcases = $(test_programs) $(installed_test_programs) \
 installed_test_meta_DATA = $(installed_testcases:=.test)
 
 %.test: %$(EXEEXT) Makefile
-       $(AM_V_GEN) (echo '[Test]' > $@.tmp; \
+       $(AM_V_GEN) ($(MKDIR_P) $(@D); \
+       echo '[Test]' > $@.tmp; \
        echo 'Type=session' >> $@.tmp; \
        echo 'Exec=$(installed_testdir)/$(notdir $<) --tap' >> $@.tmp; \
        echo 'Output=TAP' >> $@.tmp; \