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NR_CPUS := $(shell grep -c ^processor /proc/cpuinfo)
CFLAGS ?= -g -O2 -D_FORTIFY_SOURCE=2
CFLAGS += -Wall -Wextra -I. -I../include/ -Wimplicit -D_GNU_SOURCE -D__linux__
CCSTD := $(shell if $(CC) -std=gnu11 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-std=gnu11"; else echo "-std=gnu99"; fi)
CFLAGS += $(CCSTD)
CFLAGS += -Wdeclaration-after-statement
CFLAGS += -Wformat=2
CFLAGS += -Winit-self
CFLAGS += -Wnested-externs
CFLAGS += -Wpacked
CFLAGS += -Wshadow
CFLAGS += -Wundef
CFLAGS += -Wwrite-strings
CFLAGS += -Wno-format-nonliteral
CFLAGS += -Wstrict-prototypes -Wmissing-prototypes
# gcc only.
ifneq ($(shell $(CC) -v 2>&1 | grep -c "clang"), 1)
CFLAGS += -Wlogical-op
CFLAGS += -Wstrict-aliasing=3
ifeq ($(DEVEL), 0)
CFLAGS += -Wno-maybe-uninitialized
endif
endif
# Sometimes useful for debugging. more useful with clang than gcc.
#CFLAGS += -fsanitize=address
LDFLAGS = -lpthread
V = @
Q = $(V:1=)
QUIET_CC = $(Q:@=@echo ' CC '$@;)
all: trinityserver
HEADERS := $(patsubst %.h,%.h,$(wildcard *.h))
SRCS := $(wildcard *.c)
OBJS := $(sort $(patsubst %.c,%.o,$(wildcard *.c)))
DEPDIR= .deps
-include $(SRCS:%.c=$(DEPDIR)/%.d)
trinityserver: $(OBJS) $(HEADERS)
$(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o trinityserver $(OBJS) $(LDLIBS)
df = $(DEPDIR)/$(*D)/$(*F)
%.o : %.c
$(QUIET_CC)$(CC) $(CFLAGS) -o $@ -c $<
@mkdir -p $(DEPDIR)/$(*D)
@$(CC) -MM $(CFLAGS) $*.c > $(df).d
@mv -f $(df).d $(df).d.tmp
@sed -e 's|.*:|$*.o:|' <$(df).d.tmp > $(df).d
@sed -e 's/.*://' -e 's/\\$$//' < $(df).d.tmp | fmt -1 | \
sed -e 's/^ *//' -e 's/$$/:/' >> $(df).d
@rm -f $(df).d.tmp
clean:
@rm -f $(OBJS)
@rm -f core.*
@rm -f trinityserver
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