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Clean up various warnings when building under -Wall Add some gimmicks to prevent fread() and fwrite() warnings about ignoring the return value. Yes, this is probably not a good thing to do, but doing something with a non-success return value is going to involve crashing out or something anyway. Also fix several warnings about variables used while possibly uninitialized. The code flow shows that this cannot be the case but initializing them to a plausible value at declaration time costs pretty much nothing and it makes gcc happy. Also caught a use of | instead of || which probably would have caused a certain check for duplicate declarations in __os9 sections to behave oddly.
author William Astle <lost@l-w.ca>
date Wed, 06 Feb 2013 21:43:10 -0700
parents c5b1dd523ac4
children 1c70570e3d42
line wrap: on
line source

# define anything system specific here
#
# set these variables if needed
# PROGSUFFIX: suffix added to binaries
# BUILDTPREFIX: prefix added to build utilities (cc, etc.) for xcompile
# can also set them when invoking "make"
#PROGSUFFIX := .exe
#BUILDTPREFIX=i586-mingw32msvc-

# C compiler
CC := $(BUILDTPREFIX)cc

# ar
AR := $(BUILDTPREFIX)ar

# ranlib
RANLIB := $(BUILDTPREFIX)ranlib

CPPFLAGS += -I lwlib -DPACKAGE_STRING='"lwtools 4.7+"'
LDFLAGS += -L$(PWD)/lwlib -llw

CFLAGS ?= -O3 -Wall

MAIN_TARGETS := lwasm/lwasm$(PROGSUFFIX) \
	lwlink/lwlink$(PROGSUFFIX) \
	lwar/lwar$(PROGSUFFIX) \
	lwlink/lwobjdump$(PROGSUFFIX)

.PHONY: all
all: $(MAIN_TARGETS)

lwar_srcs := add.c extract.c list.c lwar.c main.c remove.c replace.c
lwar_srcs := $(addprefix lwar/,$(lwar_srcs))

lwlib_srcs := lw_alloc.c lw_realloc.c lw_free.c lw_error.c lw_expr.c \
	lw_stack.c lw_string.c lw_stringlist.c lw_cmdline.c
lwlib_srcs := $(addprefix lwlib/,$(lwlib_srcs))

lwlink_srcs := main.c lwlink.c readfiles.c expr.c script.c link.c output.c map.c
lwobjdump_srcs := objdump.c
lwlink_srcs := $(addprefix lwlink/,$(lwlink_srcs))
lwobjdump_srcs := $(addprefix lwlink/,$(lwobjdump_srcs))

lwcc_srcs :=  lwcc.c
lwcc_srcs := $(addprefix lwcc/,$(lwcc_srcs))
lwcpp_srcs := lwcpp.c
lwcpp_srcs := $(addprefix lwcc/cpp/,$(lwcpp_srcs))

lwasm_srcs :=  debug.c input.c insn_bitbit.c insn_gen.c insn_indexed.c \
	insn_inh.c insn_logicmem.c insn_rel.c insn_rlist.c insn_rtor.c insn_tfm.c \
	instab.c list.c lwasm.c macro.c main.c os9.c output.c pass1.c pass2.c \
	pass3.c pass4.c pass5.c pass6.c pass7.c pragma.c pseudo.c section.c \
	struct.c symbol.c unicorns.c
lwasm_srcs := $(addprefix lwasm/,$(lwasm_srcs))

lwasm_objs := $(lwasm_srcs:.c=.o)
lwlink_objs := $(lwlink_srcs:.c=.o)
lwar_objs := $(lwar_srcs:.c=.o)
lwlib_objs := $(lwlib_srcs:.c=.o)
lwobjdump_objs := $(lwobjdump_srcs:.c=.o)
lwcc_objs := $(lwcc_srcs:.c=.o)
lwcpp_objs := $(lwcpp_srcs:.c=.o)

lwasm_deps := $(lwasm_srcs:.c=.d)
lwlink_deps := $(lwlink_srcs:.c=.d)
lwar_deps := $(lwar_srcs:.c=.d)
lwlib_deps := $(lwlib_srcs:.c=.d)
lwobjdump_deps := $(lwobjdump_srcs:.c=.d)
lwcc_deps := $(lwcc_srcs:.c=.d)
lwcpp_deps := $(lwcpp_srcs:.c=.d)

.PHONY: lwlink lwasm lwar lwobjdump lwcc lwcpp
lwlink: lwlink/lwlink$(PROGSUFFIX)
lwasm: lwasm/lwasm$(PROGSUFFIX)
lwar: lwar/lwar$(PROGSUFFIX)
lwobjdump: lwlink/lwobjdump$(PROGSUFFIX)
lwcc: lwcc/lwcc$(PROGSUFFIX)
lwcpp: lwcc/lwcpp$(PROGSUFFIX)

.PHONY: lwbasic
lwbasic: lwbasic/lwbasic$(PROGSUFFIX)

lwasm/lwasm$(PROGSUFFIX): $(lwasm_objs) lwlib
	@echo Linking $@
	@$(CC) -o $@ $(lwasm_objs) $(LDFLAGS)

lwlink/lwlink$(PROGSUFFIX): $(lwlink_objs) lwlib
	@echo Linking $@
	@$(CC) -o $@ $(lwlink_objs) $(LDFLAGS)

lwlink/lwobjdump$(PROGSUFFIX): $(lwobjdump_objs) lwlib
	@echo Linking $@
	@$(CC) -o $@ $(lwobjdump_objs) $(LDFLAGS)

lwar/lwar$(PROGSUFFIX): $(lwar_objs) lwlib
	@echo Linking $@
	@$(CC) -o $@ $(lwar_objs) $(LDFLAGS)

lwcc/lwcc$(PROGSUFFIX): $(lwcc_objs) lwlib
	@echo Linking $@
	@$(CC) -o $@ $(lwcc_objs) $(LDFLAGS)

lwcc/lwcpp$(PROGSUFFIX): $(lwcpp_objs) lwlib
	@echo Linking $@
	@$(CC) -o $@ $(lwcpp_objs) $(LDFLAGS)


#.PHONY: lwlib
.INTERMEDIATE: lwlib
lwlib: lwlib/liblw.a

lwlib/liblw.a: $(lwlib_objs)
	@echo Linking $@
	@$(AR) rc $@ $(lwlib_objs)
	@$(RANLIB) $@

alldeps := $(lwasm_deps) $(lwlink_deps) $(lwar_deps) $(lwlib_deps) ($lwobjdump_deps) $(lwcc_deps)

-include $(alldeps)

extra_clean := $(extra_clean) *~ */*~

%.o: %.c
	@echo "Building dependencies for $@"
	@$(CC) -MM $(CPPFLAGS) -o $*.d $<
	@mv -f $*.d $*.d.tmp
	@sed -e 's|.*:|$*.o $*.d:|' < $*.d.tmp > $*.d
	@sed -e 's/.*://' -e 's/\\$$//' < $*.d.tmp | fmt -1 | sed -e 's/^ *//' -e 's/$$/:/' >> $*.d
	@rm -f $*.d.tmp
	@echo Building $@
	@$(CC) $(CPPFLAGS) $(CFLAGS) -o $@ -c $<
	

.PHONY: clean
clean: $(cleantargs)
	@echo "Cleaning up"
	@rm -f lwlib/liblw.a lwasm/lwasm$(PROGSUFFIX) lwlink/lwlink$(PROGSUFFIX) lwlink/lwobjdump$(PROGSUFFIX) lwar/lwar$(PROGSUFFIX) lwcc/lwcc$(PROGSUFFIX)
	@rm -f $(lwasm_objs) $(lwlink_objs) $(lwar_objs) $(lwlib_objs) $(lwobjdump_objs) $(lwcc_objs) $(lwcpp_objs)
	@rm -f $(extra_clean)
	@rm -f */*.exe

.PHONY: realclean
realclean: clean $(realcleantargs)
	@echo "Cleaning up even more"
	@rm -f $(lwasm_deps) $(lwlink_deps) $(lwar_deps) $(lwlib_deps) $(lwobjdump_deps) $(lwcc_deps) $(lwcpp_deps)
	@rm -f docs/manual/*.html docs/manual/*.pdf

print-%:
	@echo $* = $($*)

.PHONY: install
install:
	cp $(MAIN_TARGETS) /usr/local/bin/

.PHONY: test
test: all test/runtests
	@test/runtests

.PHONY: manual
manual: manual-html manual-htmlm manual-pdf

.PHONY: manual-html
manual-html: docs/manual/manual.html

.PHONY: manual-htmlm
manual-htmlm: docs/manual/index.html

.PHONY: manual-pdf
manual-pdf: docs/manual/manual.pdf

docs/manual/manual.html: docs/manual.docbook.sgml
	docbook2html -o docs -u docs/manual.docbook.sgml && mv docs/manual.docbook.html docs/manual/manual.html

docs/manual/index.html: docs/manual.docbook.sgml
	docbook2html -o docs/manual docsmanual.docbook.sgml

docs/manual/manual.pdf: docs/manual.docbook.sgml
	docbook2pdf -o docs -u docsmanual.docbook.sgml && mv docs/manual.docbook.pdf docs/manual/manual.pdf && rm -f docs/manual.docbook.html