File: GNUmakefile.osx

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libs3 2.0-2
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# GNUmakefile.osx
# 
# Copyright 2008 Bryan Ischo <bryan@ischo.com>
# 
# This file is part of libs3.
# 
# libs3 is free software: you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation, version 3 of the License.
#
# In addition, as a special exception, the copyright holders give
# permission to link the code of this library and its programs with the
# OpenSSL library, and distribute linked combinations including the two.
#
# libs3 is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License version 3
# along with libs3, in a file named COPYING.  If not, see
# <http://www.gnu.org/licenses/>.

# I tried to use the autoconf/automake/autolocal/etc (i.e. autohell) tools
# but I just couldn't stomach them.  Since this is a Makefile for POSIX
# systems, I will simply do away with autohell completely and use a GNU
# Makefile.  GNU make ought to be available pretty much everywhere, so I
# don't see this being a significant issue for portability.

# All commands assume a GNU compiler.  For systems which do not use a GNU
# compiler, write scripts with the same names as these commands, and taking
# the same arguments, and translate the arguments and commands into the
# appropriate non-POSIX ones as needed.  libs3 assumes a GNU toolchain as
# the most portable way to build software possible.  Non-POSIX, non-GNU
# systems can do the work of supporting this build infrastructure.


# --------------------------------------------------------------------------
# Set libs3 version number, unless it is already set.
# This is trunk0.trunk0 on the libs3 git master branch; release branches
# are created with this set to specific version numbers when releases are
# made.

LIBS3_VER_MAJOR ?= 2
LIBS3_VER_MINOR ?= 0
LIBS3_VER := $(LIBS3_VER_MAJOR).$(LIBS3_VER_MINOR)


# -----------------------------------------------------------------------------
# Determine verbosity.  VERBOSE_SHOW should be prepended to every command which
# should only be displayed if VERBOSE is set.  QUIET_ECHO may be used to
# echo text only if VERBOSE is not set.  Typically, a VERBOSE_SHOW command will
# be paired with a QUIET_ECHO command, to provide a command which is displayed
# in VERBOSE mode, along with text which is displayed in non-VERBOSE mode to
# describe the command.
#
# No matter what VERBOSE is defined to, it ends up as true if it's defined.
# This will be weird if you defined VERBOSE=false in the environment, and we
# switch it to true here; but the meaning of VERBOSE is, "if it's defined to
# any value, then verbosity is turned on".  So don't define VERBOSE if you
# don't want verbosity in the build process.
# -----------------------------------------------------------------------------

ifdef VERBOSE
        VERBOSE = true
        VERBOSE_ECHO = @ echo
        VERBOSE_SHOW =
        QUIET_ECHO = @ echo > /dev/null
else
        VERBOSE = false
        VERBOSE_ECHO = @ echo > /dev/null
        VERBOSE_SHOW = @
        QUIET_ECHO = @ echo
endif


# --------------------------------------------------------------------------
# BUILD directory
ifndef BUILD
    ifdef DEBUG
        BUILD := build-debug
    else
        BUILD := build
    endif
endif


# --------------------------------------------------------------------------
# DESTDIR directory
ifndef DESTDIR
    DESTDIR := /usr
endif


# --------------------------------------------------------------------------
# Acquire configuration information for libraries that libs3 depends upon

ifndef CURL_LIBS
    CURL_LIBS := $(shell curl-config --libs)
endif

ifndef CURL_CFLAGS
    CURL_CFLAGS := $(shell curl-config --cflags)
endif

ifndef LIBXML2_LIBS
    LIBXML2_LIBS := $(shell xml2-config --libs)
endif

ifndef LIBXML2_CFLAGS
    LIBXML2_CFLAGS := $(shell xml2-config --cflags)
endif


# --------------------------------------------------------------------------
# These CFLAGS assume a GNU compiler.  For other compilers, write a script
# which converts these arguments into their equivalent for that particular
# compiler.

ifndef CFLAGS
    ifdef DEBUG
        CFLAGS := -g
    else
        CFLAGS := -O3
    endif
endif

CFLAGS += -Wall -Werror -Wshadow -Wextra -Iinc \
          $(CURL_CFLAGS) $(LIBXML2_CFLAGS) \
          -DLIBS3_VER_MAJOR=\"$(LIBS3_VER_MAJOR)\" \
          -DLIBS3_VER_MINOR=\"$(LIBS3_VER_MINOR)\" \
          -DLIBS3_VER=\"$(LIBS3_VER)\" \
          -D__STRICT_ANSI__ \
          -D_ISOC99_SOURCE \
          -fno-common

LDFLAGS = $(CURL_LIBS) $(LIBXML2_LIBS) -lpthread


# --------------------------------------------------------------------------
# Default targets are everything

.PHONY: all
all: exported test


# --------------------------------------------------------------------------
# Exported targets are the library and driver program

.PHONY: exported
exported: libs3 s3 headers


# --------------------------------------------------------------------------
# Install target

.PHONY: install
install: exported
	$(QUIET_ECHO) $(DESTDIR)/bin/s3: Installing executable
	$(VERBOSE_SHOW) install -ps -m u+rwx,go+rx $(BUILD)/bin/s3 \
                    $(DESTDIR)/bin/s3
	$(QUIET_ECHO) \
        $(DESTDIR)/lib/libs3.$(LIBS3_VER).dylib: Installing dynamic library
	$(VERBOSE_SHOW) install -p -m u+rw,go+r \
                    $(BUILD)/lib/libs3.$(LIBS3_VER_MAJOR).dylib \
                    $(DESTDIR)/lib/libs3.$(LIBS3_VER).dylib
	$(QUIET_ECHO) \
        $(DESTDIR)/lib/libs3.$(LIBS3_VER_MAJOR).dylib: Linking dynamic library
	$(VERBOSE_SHOW) ln -sf libs3.$(LIBS3_VER).dylib \
                    $(DESTDIR)/lib/libs3.$(LIBS3_VER_MAJOR).dylib
	$(QUIET_ECHO) $(DESTDIR)/lib/libs3.dylib: Linking dynamic library
	$(VERBOSE_SHOW) ln -sf libs3.$(LIBS3_VER_MAJOR).dylib \
                    $(DESTDIR)/lib/libs3.dylib
	$(QUIET_ECHO) $(DESTDIR)/lib/libs3.a: Installing static library
	$(VERBOSE_SHOW) install -p -m u+rw,go+r $(BUILD)/lib/libs3.a \
                    $(DESTDIR)/lib/libs3.a
	$(QUIET_ECHO) $(DESTDIR)/include/libs3.h: Installing header
	$(VERBOSE_SHOW) install -p -m u+rw,go+r $(BUILD)/include/libs3.h \
                    $(DESTDIR)/include/libs3.h


# --------------------------------------------------------------------------
# Uninstall target

.PHONY: uninstall
uninstall:
	$(QUIET_ECHO) Installed files: Uninstalling
	$(VERBOSE_SHOW) \
        rm -f $(DESTDIR)/bin/s3 \
              $(DESTDIR)/lib/libs3.dylib \
              $(DESTDIR)/lib/libs3.$(LIBS3_VER_MAJOR).dylib \
              $(DESTDIR)/lib/libs3.$(LIBS3_VER).dylib \
              $(DESTDIR)/lib/libs3.a \
              $(DESTDIR)/include/libs3.h


# --------------------------------------------------------------------------
# Compile target patterns

$(BUILD)/obj/%.o: src/%.c
	$(QUIET_ECHO) $@: Compiling object
	@ mkdir -p $(dir $(BUILD)/dep/$<)
	@ gcc $(CFLAGS) -M -MG -MQ $@ -DCOMPILINGDEPENDENCIES \
        -o $(BUILD)/dep/$(<:%.c=%.d) -c $<
	@ mkdir -p $(dir $@)
	@(VERBOSE_SHOW) gcc $(CFLAGS) -o $@ -c $<

$(BUILD)/obj/%.do: src/%.c
	$(QUIET_ECHO) $@: Compiling dynamic object
	@ mkdir -p $(dir $(BUILD)/dep/$<)
	@ gcc $(CFLAGS) -M -MG -MQ $@ -DCOMPILINGDEPENDENCIES \
        -o $(BUILD)/dep/$(<:%.c=%.dd) -c $<
	@ mkdir -p $(dir $@)
	$(VERBOSE_SHOW) gcc $(CFLAGS) -fpic -fPIC -o $@ -c $< 


# --------------------------------------------------------------------------
# libs3 library targets

LIBS3_SHARED = $(BUILD)/lib/libs3.$(LIBS3_VER_MAJOR).dylib
LIBS3_STATIC = $(BUILD)/lib/libs3.a

.PHONY: libs3
libs3: $(LIBS3_SHARED) $(LIBS3_SHARED_MAJOR) $(BUILD)/lib/libs3.a

LIBS3_SOURCES := src/acl.c src/bucket.c src/error_parser.c src/general.c \
                 src/object.c src/request.c src/request_context.c \
                 src/response_headers_handler.c src/service_access_logging.c \
                 src/service.c src/simplexml.c src/util.c

$(LIBS3_SHARED): $(LIBS3_SOURCES:src/%.c=$(BUILD)/obj/%.do)
	$(QUIET_ECHO) $@: Building shared library
	@ mkdir -p $(dir $@)
	$(VERBOSE_SHOW) gcc -dynamiclib -install_name \
        libs3.$(LIBS3_VER_MAJOR).dylib \
        -compatibility_version $(LIBS3_VER_MAJOR) \
        -current_version $(LIBS3_VER) -o $@ $^ $(LDFLAGS)

$(LIBS3_STATIC): $(LIBS3_SOURCES:src/%.c=$(BUILD)/obj/%.o)
	$(QUIET_ECHO) $@: Building static library
	@ mkdir -p $(dir $@)
	$(VERBOSE_SHOW) $(AR) cr $@ $^


# --------------------------------------------------------------------------
# Driver program targets

.PHONY: s3
s3: $(BUILD)/bin/s3

$(BUILD)/bin/s3: $(BUILD)/obj/s3.o $(LIBS3_SHARED)
	$(QUIET_ECHO) $@: Building executable
	@ mkdir -p $(dir $@)
	$(VERBOSE_SHOW) gcc -o $@ $^ $(LDFLAGS)


# --------------------------------------------------------------------------
# libs3 header targets

.PHONY: headers
headers: $(BUILD)/include/libs3.h

$(BUILD)/include/libs3.h: inc/libs3.h
	$(QUIET_ECHO) $@: Linking header
	@ mkdir -p $(dir $@)
	$(VERBOSE_SHOW) ln -sf $(abspath $<) $@


# --------------------------------------------------------------------------
# Test targets

.PHONY: test
test: $(BUILD)/bin/testsimplexml

$(BUILD)/bin/testsimplexml: $(BUILD)/obj/testsimplexml.o $(LIBS3_STATIC)
	$(QUIET_ECHO) $@: Building executable
	@ mkdir -p $(dir $@)
	$(VERBOSE_SHOW) gcc -o $@ $^ $(LIBXML2_LIBS)


# --------------------------------------------------------------------------
# Clean target

.PHONY: clean
clean:
	$(QUIET_ECHO) $(BUILD): Cleaning
	$(VERBOSE_SHOW) rm -rf $(BUILD)


# --------------------------------------------------------------------------
# Clean dependencies target

.PHONY: cleandeps
cleandeps:
	$(QUIET_ECHO) $(BUILD)/dep: Cleaning dependencies
	$(VERBOSE_SHOW) rm -rf $(BUILD)/dep


# --------------------------------------------------------------------------
# Dependencies

ALL_SOURCES := $(LIBS3_SOURCES) s3.c testsimplexml.c

$(foreach i, $(ALL_SOURCES), $(eval -include $(BUILD)/dep/src/$(i:%.c=%.d)))
$(foreach i, $(ALL_SOURCES), $(eval -include $(BUILD)/dep/src/$(i:%.c=%.dd)))