Makefile

# Copyright 2020, JP Norair
#
# Licensed under the OpenTag License, Version 1.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.indigresso.com/wiki/doku.php?id=opentag:license_1_0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

CC := gcc
LD := ld

THISMACHINE ?= $(shell uname -srm | sed -e 's/ /-/g')
THISSYSTEM	?= $(shell uname -s)
TARGET		?= $(THISMACHINE)

# libjudy is intended for implementation on the current machine
# This may change in time, but for now it is the case in order to prevent build on C2000
ifneq ($(TARGET),$(THISMACHINE))
	error "Current versions of libjudy only compile on local machine targets"
endif

ifeq ($(THISSYSTEM),Darwin)
# Mac can't do conditional selection of static and dynamic libs at link time.
#	PRODUCTS := libjudy.$(THISSYSTEM).dylib libjudy.$(THISSYSTEM).a
	PRODUCTS := libjudy.$(THISSYSTEM).a
else ifeq ($(THISSYSTEM),Linux)
	PRODUCTS := libjudy.$(THISSYSTEM).so libjudy.POSIX.a
else ifeq ($(THISSYSTEM),CYGWIN_NT-10.0)
	PRODUCTS := libjudy.POSIX.a
else
	error "THISSYSTEM set to unknown value: $(THISSYSTEM)"
endif

VERSION     ?= 0.1.0
PACKAGEDIR  ?= ./../_hbpkg/$(THISMACHINE)/libjudy.$(VERSION)
TEST_APP    := libjudy_test

SRCDIR      := src
INCDIR      := ./include
BUILDDIR    := build/$(THISMACHINE)
PRODUCTDIR  := bin/$(THISMACHINE)
SRCEXT      := c
DEPEXT      := d
OBJEXT      := o

CFLAGS      ?= -std=gnu99 -O3 -fPIC
LIB         := ./
DEF         := 
INC         := -I$(SRCDIR) $(LIB:%=-I%)
INCDEP      := -I$(INCDIR) $(LIB:%=-I%) 
          
SOURCES     := $(shell find $(SRCDIR) -type f -name "*.$(SRCEXT)")
OBJECTS     := $(patsubst $(SRCDIR)/%,$(BUILDDIR)/%,$(SOURCES:.$(SRCEXT)=.$(OBJEXT)))


all: directories $(TEST_APP)
lib: directories $(PRODUCTS)
remake: cleaner all
pkg: lib install

install:
	@rm -rf $(PACKAGEDIR)
	@mkdir -p $(PACKAGEDIR)
	@cp $(SRCDIR)/judy.h $(PACKAGEDIR)/
	@cp -R $(PRODUCTDIR)/* $(PACKAGEDIR)/
	@rm -f $(PACKAGEDIR)/../libjudy
	@ln -s libjudy.$(VERSION) ./$(PACKAGEDIR)/../libjudy
	cd ../_hbsys && $(MAKE) sys_install INS_MACHINE=$(THISMACHINE) INS_PKGNAME=libjudy

#Make the Directories
directories:
	@mkdir -p $(BUILDDIR)
	@mkdir -p $(PRODUCTDIR)

#Clean only Objects
clean:
	@$(RM) -rf $(BUILDDIR)

#Full Clean, Objects and Binaries
cleaner: clean
	@$(RM) -rf $(BUILDDIR)
	@$(RM) -rf $(PRODUCTDIR)

# Pull in dependency info for *existing* .o files
-include $(OBJECTS:.$(OBJEXT)=.$(DEPEXT))

# Build of the test app with static lib
libjudy_test: $(PRODUCTS)
#	$(CC) $(CFLAGS) $(DEF) $(INC) -c -o $(BUILDDIR)/libjudy-test.o ./test/libjudy-test.c
#	$(CC) $(CFLAGS) $(DEF) $(BUILDDIR)/libjudy-test.o $(INC) $(LIB:%=-L%) -ljudy -o #$(PRODUCTDIR)/libjudy_test

# Build the static library
# Note: testing with libtool now, which may be superior to ar
libjudy.Darwin.a: $(OBJECTS)
	libtool -o $(PRODUCTDIR)/libjudy.a -static $(OBJECTS)

libjudy.POSIX.a: $(OBJECTS)
	$(eval LIBTOOL_OBJ := $(shell find $(BUILDDIR) -type f -name "*.$(OBJEXT)"))
	ar rcs -o $(PRODUCTDIR)/libjudy.a $(OBJECTS)

# Build shared library
libjudy.Linux.so: $(OBJECTS)
	$(eval LIBTOOL_OBJ := $(shell find $(BUILDDIR) -type f -name "*.$(OBJEXT)"))
	$(CC) -shared -fPIC -Wl,-soname,libjudy.so.1 -o $(PRODUCTDIR)/libjudy.so.$(VERSION) $(LIBTOOL_OBJ) -lc


# Compile
$(BUILDDIR)/%.$(OBJEXT): $(SRCDIR)/%.$(SRCEXT)
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) $(DEF) $(INC) -c -o $@ $<
	@$(CC) $(CFLAGS) $(DEF) $(INCDEP) -MM $(SRCDIR)/$*.$(SRCEXT) > $(BUILDDIR)/$*.$(DEPEXT)
	@cp -f $(BUILDDIR)/$*.$(DEPEXT) $(BUILDDIR)/$*.$(DEPEXT).tmp
	@sed -e 's|.*:|$(BUILDDIR)/$*.$(OBJEXT):|' < $(BUILDDIR)/$*.$(DEPEXT).tmp > $(BUILDDIR)/$*.$(DEPEXT)
	@sed -e 's/.*://' -e 's/\\$$//' < $(BUILDDIR)/$*.$(DEPEXT).tmp | fmt -1 | sed -e 's/^ *//' -e 's/$$/:/' >> $(BUILDDIR)/$*.$(DEPEXT)
	@rm -f $(BUILDDIR)/$*.$(DEPEXT).tmp

# Non-File Targets
.PHONY: all lib pkg remake clean cleaner resources