Don't require Parser.y in a source dist

[ghc-hetmet.git] / compiler / Makefile

diff --git a/compiler/Makefile b/compiler/Makefile
index 69b2903..d64732a 100644 (file)
--- a/compiler/Makefile
+++ b/compiler/Makefile
@@ -189,7 +189,13 @@ CONFIGURE_FLAGS_STAGE1 += $(USE_BOOT_CONFIGURE_FLAGS)
 CONFIGURE_FLAGS_STAGE2 += $(USE_STAGE1_CONFIGURE_FLAGS)
 CONFIGURE_FLAGS_STAGE3 += $(USE_STAGE2_CONFIGURE_FLAGS)
 
-boot.stage.%: $(PRIMOP_BITS) $(CONFIG_HS) parser/Parser.y
+# In a source dist we don't need to worry about Parser.y(.pp) as we have
+# the .hs file pre-generated
+ifneq "$(wildcard parser/Parser.y.pp)" ""
+PARSER_Y = parser/Parser.y
+endif
+
+boot.stage.%: $(PRIMOP_BITS) $(CONFIG_HS) $(PARSER_Y)
        test -f $(STAGE3_PACKAGE_CONF) || echo "[]" > $(STAGE3_PACKAGE_CONF)
        $(CABAL) configure --distpref dist-stage$* \
                           $(CONFIGURE_FLAGS_STAGE$*) \