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CFLAGS:=-std=gnu99 -O2 -pedantic -Wall -Wextra -Wwrite-strings -Warray-bounds -Wconversion -Wstrict-prototypes -Werror $(CFLAGS)
CPPFLAGS:=$(CPPFLAGS)
SOURCES=$(wildcard *.c)
EXECUTABLES=$(patsubst %.c,%,$(SOURCES))
INSTALL:=install
prefix:=/usr/local
bindir:=$(prefix)/bin
datarootdir:=$(prefix)/share
mandir:=$(datarootdir)/man
SERVICE_TEMPLATE=zcfan.service.in
SERVICE=zcfan.service
all: $(EXECUTABLES) $(SERVICE)
$(SERVICE): $(SERVICE_TEMPLATE)
sed 's|@bindir@|$(bindir)|g' $< > $@
%: %.c
$(CC) $(CPPFLAGS) $(CFLAGS) $< -o $@ $(LIBS) $(LDFLAGS)
%.o: %.c
$(CC) $(CPPFLAGS) $(CFLAGS) $< -c -o $@
%: %.o
$(CC) $< -o $@ $(LIBS) $(LDFLAGS)
# Noisy clang build that's expected to fail, but can be useful to find corner
# cases.
clang-everything: CC=clang
clang-everything: CFLAGS+=-Weverything -Wno-disabled-macro-expansion -Wno-padded -Wno-covered-switch-default -Wno-gnu-zero-variadic-macro-arguments -Wno-declaration-after-statement
clang-everything: all
sanitisers: CFLAGS+=-fsanitize=address -fsanitize=undefined -fanalyzer
sanitisers: debug
debug: CFLAGS+=-Og -ggdb -fno-omit-frame-pointer
debug: all
clang-tidy:
# DeprecatedOrUnsafeBufferHandling: See https://stackoverflow.com/a/50724865/945780
# clang-diagnostic-gnu-zero-variadic-macro-arguments: We require this for ##__VA_ARGS__
clang-tidy zcfan.c -checks=-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling,-clang-diagnostic-gnu-zero-variadic-macro-arguments -- $(CPPFLAGS) $(CFLAGS) $(LDFLAGS)
install: all
mkdir -p $(DESTDIR)$(bindir)/
$(INSTALL) -pt $(DESTDIR)$(bindir)/ $(EXECUTABLES)
$(INSTALL) -Dp -m 644 $(SERVICE) $(DESTDIR)$(prefix)/lib/systemd/system/$(SERVICE)
$(INSTALL) -Dp -m 644 zcfan.1 $(DESTDIR)$(mandir)/man1/zcfan.1
lint:
clang-format -style=file --dry-run --Werror zcfan.c
clean:
rm -f $(EXECUTABLES) $(SERVICE)
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