[Automake-NG] [FYI] tests: fix spurious failure in test on TAGS support

[Stefano Lattarini]

* t/tags-pr12372.sh (Makefile.am): Use pattern rules rather than
old-fashioned suffix rules.
(sub/Makefile.am): Likewise.

Signed-off-by: Stefano Lattarini <address@hidden>
---
 t/tags-pr12372.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/t/tags-pr12372.sh b/t/tags-pr12372.sh
index 66b40a0..caba463 100755
--- a/t/tags-pr12372.sh
+++ b/t/tags-pr12372.sh
@@ -28,7 +28,7 @@ END
 
 cat > Makefile.am <<'END'
 all-local: tags
-.pc.o:
+%.o: %.pc
        sed -e 's/\[/{/' -e 's/\]/}/' $(srcdir)/$*.pc >$*.c
        $(CC) $(DEFS) $(CPPFLAGS) $(CFLAGS) -c $*.c
        rm -f $*.c
@@ -42,7 +42,7 @@ END
 mkdir sub
 cat > sub/Makefile.am <<'END'
 all-local: tags
-.pc.o:
+%.o: %.pc
        sed -e 's/@/a/g' $(srcdir)/$*.pc >$*.c
        $(CC) $(DEFS) $(CPPFLAGS) $(CFLAGS) -c $*.c
        rm -f $*.c
-- 
1.7.12.317.g1c54b74