buildsys: don't use %.c to in a suffix rule

Suggested by @mqudsi in universal-ctags#1554. Signed-off-by: Masatake YAMATO <yamato@redhat.com>
masatake · Oct 14, 2018 · b1cf2d4 · b1cf2d4
1 parent c0943d1
commit b1cf2d4
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/Makefile.am b/Makefile.am
@@ -96,7 +96,8 @@ optlib2c_verbose = $(optlib2c_verbose_@AM_V@)
 optlib2c_verbose_ = $(optlib2c_verbose_@AM_DEFAULT_V@)
 optlib2c_verbose_0 = @echo OPTLIB2C "  $@";
 OPTLIB2C = $(srcdir)/misc/optlib2c
-%.c: %.ctags $(OPTLIB2C) Makefile
+SUFFIXES += .ctags
+.c.ctags: $(OPTLIB2C) Makefile
 	$(optlib2c_verbose)$(OPTLIB2C) $< > $@
 endif
 dist_ctags_SOURCES = $(ALL_HEADS) $(ALL_SRCS)