Advanced options in makefile

gistfile1.sh

make clean && make
make clean && make mode=debug arch=32 v=1 cov=1

Makefile

mode       := release
CC         := gcc
v          := 0
cov        := 0
arc        := 64
ifeq ($(cov), 0)
else
	COV_CFLAGS = -fprofile-arcs -ftest-coverage
	COV_LFLAGS = -lgcov
endif

DEFINES = 

# Make sure CORE_LIB_PATH is available.
CORE_LIB_FILE = "Corelibs.cfg"

# Include variables corresponding to the Corelibs. Populate it from the corelibs version control file.
CORE_COMMON := $$CORE_LIB_PATH/Common/include
A_INC  := $$CORE_LIB_PATH/A/$(shell awk -F" = " '/^A/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/include
B_INC  := $$CORE_LIB_PATH/B/$(shell awk -F" = " '/^B/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/include
C_INC  := $$CORE_LIB_PATH/C/$(shell awk -F" = " '/^C/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/include
D_INC  := $$CORE_LIB_PATH/D/$(shell awk -F" = " '/^D/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/include
E_INC  := $$CORE_LIB_PATH/E/$(shell awk -F" = " '/^E/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/include
F_INC  := $$CORE_LIB_PATH/F/$(shell awk -F" = " '/^F/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/include
# End variable formation

INCPATH = -isystem $(CORE_COMMON) -isystem $(A_INC) -isystem $(F_INC) \
		  -isystem $(C_INC) -isystem $(D_INC) -isystem $(E_INC) \
		  -isystem $(B_INC)

A_LIB  := -L$$CORE_LIB_PATH/A/$(shell awk -F" = " '/^A/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/lib/linux/$(arch)/gcc412/dynamic/release
B_LIB  := -L$$CORE_LIB_PATH/B/$(shell awk -F" = " '/^B/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/lib/linux/$(arch)/gcc412/dynamic/release
C_LIB  := -L$$CORE_LIB_PATH/C/$(shell awk -F" = " '/^C/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/lib/linux/$(arch)/gcc412/dynamic/release
D_LIB  := -L$$CORE_LIB_PATH/D/$(shell awk -F" = " '/^D/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/lib/linux/$(arch)/gcc412/dynamic/release
E_LIB  := -L$$CORE_LIB_PATH/E/$(shell awk -F" = " '/^E/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/lib/linux/$(arch)/gcc412/dynamic/release
F_LIB  := -L$$CORE_LIB_PATH/F/$(shell awk -F" = " '/^F/ { print $$2 }' $(CORE_LIB_FILE) 2>/dev/null)/lib/linux/$(arch)/gcc412/dynamic/release

ifeq ($(mode), release)
	flag := -O2
else
	flag := -g3
endif
CFLAGS += $(flag) -Wall -W -Wextra -Wno-override-init -Werror -std=gnu99

OBJDIR := .objs
OBJS = $(addprefix $(OBJDIR)/, genutils.o string-funcs.o thread.o http-receiver.o \
         heartbeat.o read-config.o config-settings.o log.o http.o)

CORE_LIBS = $(A_LIB) -la $(B_LIB) -lb $(C_LIB) -lc $(D_LIB) -ld $(E_LIB) -le $(F_LIB) -lf
EXTERNAL_LIBS = -lcurl
SYSTEM_LIBS = -lpthread
TARGET = sdk1

.PHONY: all
all: $(TARGET)

$(OBJS): | $(OBJDIR)

$(OBJDIR):
	@mkdir -p $(OBJDIR)

$(OBJDIR)/%.o: %.c
	@if test ! -d $$CORE_LIB_PATH; then echo "Invalid CORE_LIB_PATH: $$CORE_LIB_PATH. Please make sure the directory exists."; exit 1; fi
	@if test ! -f $(CORE_LIB_FILE); then echo "Invalid $(CORE_LIB_FILE). Please make sure the core library version control file exists."; exit 1; fi
ifeq ($(v), 0)
	@echo "[$(CC)]	$(@F)"
	@$(CC) -c -m$(arch) $(CFLAGS) $(INCPATH) $(COV_CFLAGS) $(DEFINES) -o $@ $^
else
	$(CC) -c -m$(arch) $(CFLAGS) $(INCPATH) $(COV_CFLAGS) $(DEFINES) -o $@ $^
endif

$(TARGET): $(OBJS)
ifeq ($(v), 0)
	@echo "[$(CC)]	$(@F)"
	@$(CC) -m$(arch) $(LD_FLAGS) -o $@ $(OBJS) $(SYSTEM_LIBS) $(EXTERNAL_LIBS) $(CORE_LIBS) $(COV_LFLAGS)
else
	$(CC) -m$(arch) $(LD_FLAGS) -o $@ $(OBJS) $(SYSTEM_LIBS) $(EXTERNAL_LIBS) $(CORE_LIBS) $(COV_LFLAGS)
endif

clean:
	find . -name "*.o" -o -name "*.gcno" -o -name "*.gcda" -o -name "*.info" | xargs rm -f
	rm -f $(TARGET)