Explicitly error message if LUAC is not set

diff --git a/share/Makefile.am b/share/Makefile.am
index 59d424f1992c315ef95965a238eabda7d64bccf8..a7d0b39e736ce962bbced1909cace6c2e65d352f 100644 (file)
--- a/share/Makefile.am
+++ b/share/Makefile.am
@@ -193,6 +193,10 @@ luac_verbose_ = $(luac_verbose_$(AM_DEFAULT_VERBOSITY))
 luac_verbose_0 = @echo "  LUAC   $@";
 
 .lua.luac:
+       $(AM_V_at)if test -z "$(LUAC)"; then \
+               echo "LUA byte compiler missing." >&2; \
+               exit 1 ; \
+       fi
        $(AM_V_at)for f in $(EXTRA_DIST); do \
                test "$(srcdir)" = . || f="$(srcdir)/$$f"; \
                if test $$f = $<; then \