Disable debug flag for executable files when LTO [ci skip]

Get rid of tons of linker warnings that it could not find object
file symbol for every symbols, when targeting darwin.

defs/gmake.mk

@@ -106,12 +106,16 @@ yes-test-bundler-parallel: PARALLELRSPECOPTS += $(if $(nproc),-n$(shell expr $(n
 # Cross reference needs to parse all files at once
 love install reinstall: RDOCFLAGS = --force-update
 
+ifneq ($(if $(filter -flto%,$(CFLAGS)),$(subst darwin,,$(arch)),$(arch)),$(arch))
+override EXE_LDFLAGS = $(filter-out -g%,$(LDFLAGS))
+endif
+
 $(srcdir)/missing/des_tables.c: $(srcdir)/missing/crypt.c
 ifeq ($(if $(filter yes,$(CROSS_COMPILING)),,$(CC)),)
 	touch $@
 else
 	@$(ECHO) building make_des_table
-	$(CC) $(INCFLAGS) $(CPPFLAGS) -DDUMP $(LDFLAGS) $(XLDFLAGS) $(LIBS) -omake_des_table $(srcdir)/missing/crypt.c
+	$(CC) $(INCFLAGS) $(CPPFLAGS) -DDUMP $(EXE_LDFLAGS) $(XLDFLAGS) $(LIBS) -omake_des_table $(srcdir)/missing/crypt.c
 	@[ -x ./make_des_table ]
 	@$(ECHO) generating $@
 	$(Q) $(MAKEDIRS) $(@D)
@@ -140,7 +144,7 @@ $(STUBPROGRAM): rubystub.$(OBJEXT) $(LIBRUBY) $(MAINOBJ) $(OBJS) $(EXTOBJS) $(SE
 rubystub$(EXEEXT):
 	@rm -f $@
 	$(ECHO) linking $@
-	$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) rubystub.$(OBJEXT) $(EXTOBJS) $(LIBRUBYARG) $(MAINLIBS) $(LIBS) $(EXTLIBS) $(OUTFLAG)$@
+	$(Q) $(PURIFY) $(CC) $(EXE_LDFLAGS) $(XLDFLAGS) rubystub.$(OBJEXT) $(EXTOBJS) $(LIBRUBYARG) $(MAINLIBS) $(LIBS) $(EXTLIBS) $(OUTFLAG)$@
 	$(Q) $(POSTLINK)
 	$(if $(STRIP),$(Q) $(STRIP) $@)
 

template/Makefile.in

@@ -107,6 +107,7 @@ MJIT_MIN_HEADER = $(MJIT_HEADER_BUILD_DIR)/$(MJIT_MIN_HEADER_NAME)
 MJIT_HEADER_BUILD_DIR = $(EXTOUT)/include/$(arch)
 MJIT_TABS=@MJIT_TABS@
 LDFLAGS = @STATIC@ $(CFLAGS) @LDFLAGS@
+EXE_LDFLAGS = $(LDFLAGS)
 EXTLDFLAGS = @EXTLDFLAGS@
 XLDFLAGS = @XLDFLAGS@ $(EXTLDFLAGS)
 EXTLIBS =
@@ -274,13 +275,13 @@ all:
 miniruby$(EXEEXT):
 		@-if test -f $@; then $(MV) -f $@ $@.old; $(RM) $@.old; fi
 		$(ECHO) linking $@
-		$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(MAINLIBS) $(LIBS) $(OUTFLAG)$@
+		$(Q) $(PURIFY) $(CC) $(EXE_LDFLAGS) $(XLDFLAGS) $(NORMALMAINOBJ) $(MINIOBJS) $(COMMONOBJS) $(MAINLIBS) $(LIBS) $(OUTFLAG)$@
 		$(Q) $(POSTLINK)
 
 $(PROGRAM):
 		@$(RM) $@
 		$(ECHO) linking $@
-		$(Q) $(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(EXTOBJS) $(LIBRUBYARG) $(MAINLIBS) $(LIBS) $(EXTLIBS) $(OUTFLAG)$@
+		$(Q) $(PURIFY) $(CC) $(EXE_LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(EXTOBJS) $(LIBRUBYARG) $(MAINLIBS) $(LIBS) $(EXTLIBS) $(OUTFLAG)$@
 		$(Q) $(POSTLINK)
 
 PRE_LIBRUBY_UPDATE = [ -n "$(LIBRUBY_SO_UPDATE)" ] || $(gnumake:yes=exec) $(RM) $(LIBRUBY_EXTS)
@@ -297,7 +298,7 @@ $(LIBRUBY_A):
 
 verify-static-library: $(LIBRUBY_A)
 		$(ECHO) verifying static-library $@
-		@$(PURIFY) $(CC) $(LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(LIBRUBY_A) $(MAINLIBS) $(EXTLIBS) $(LIBS) $(OUTFLAG)conftest$(EXEEXT)
+		@$(PURIFY) $(CC) $(EXE_LDFLAGS) $(XLDFLAGS) $(MAINOBJ) $(LIBRUBY_A) $(MAINLIBS) $(EXTLIBS) $(LIBS) $(OUTFLAG)conftest$(EXEEXT)
 		@$(RMALL) conftest$(EXEEXT) conftest.c conftest.dSYM
 
 $(LIBRUBY_SO):