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# GNUmakefile
# 
# 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

LIBS3_VER_MAJOR := trunk
LIBS3_VER_MINOR := trunk
LIBS3_VER := $(LIBS3_VER_MAJOR).$(LIBS3_VER_MINOR)


# --------------------------------------------------------------------------
# BUILD directory
ifndef BUILD
    BUILD := build
endif


# --------------------------------------------------------------------------
# DESTDIR directory
ifndef DESTDIR
    DESTDIR := libs3-$(LIBS3_VER)
endif


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

ifndef CURL_LIBS
    CURL_LIBS := -Lc:\libs3-libs\bin -lcurl
endif

ifndef CURL_CFLAGS
    CURL_CFLAGS := -Ic:\libs3-libs\include
endif

ifndef LIBXML2_LIBS
    LIBXML2_LIBS := -Lc:\libs3-libs\bin -lxml2
endif

ifndef LIBXML2_CFLAGS
    LIBXML2_CFLAGS := -Ic:\libs3-libs\include
endif

ifndef GCRYPT_CFLAGS
    GCRYPT_CFLAGS := -Ic:\libs3-libs\include
endif

ifndef GCRYPT_LIBS
    GCRYPT_LIBS := -Lc:\libs3-libs\bin -lgcrypt-11
endif

ifndef GNUTLS_LIBS
    GNUTLS_LIBS := -Lc:\libs3-libs\bin -lgnutls-26
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
    CFLAGS = -O3
endif

CFLAGS += -Wall -Werror -std=c99 -Iinc $(CURL_CFLAGS) $(LIBXML2_CFLAGS) \
          -DLIBS3_VER_MAJOR=\"$(LIBS3_VER_MAJOR)\" \
          -DLIBS3_VER_MINOR=\"$(LIBS3_VER_MINOR)\" \
	  -Dsleep=Sleep -DFOPEN_EXTRA_FLAGS=\"b\" \
	  -Iinc/mingw -include windows.h

LDFLAGS = $(CURL_LIBS) $(LIBXML2_LIBS) $(GCRYPT_LIBS) $(GNUTLS_LIBS)

# --------------------------------------------------------------------------
# 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: libs3 s3 headers
	-@mkdir $(DESTDIR)\bin
	-@mkdir $(DESTDIR)\include
	-@mkdir $(DESTDIR)\lib
	copy $(BUILD)\bin\s3.exe $(DESTDIR)\bin
	copy $(BUILD)\lib\libs3.dll $(DESTDIR)\bin
	copy $(BUILD)\lib\libs3.a $(DESTDIR)\lib
	copy mswin\libs3.def $(DESTDIR)\lib
	copy $(BUILD)\include\libs3.h $(DESTDIR)\include
	copy LICENSE $(DESTDIR)
	copy COPYING $(DESTDIR)


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

$(BUILD)/obj/%.o: src/%.c
	-@mkdir $(subst /,\,$(dir $@))
	gcc $(CFLAGS) -o $@ -c $<


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

LIBS3_SHARED = $(BUILD)/bin/libs3.dll

.PHONY: libs3
libs3: $(LIBS3_SHARED) $(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.c \
                 src/simplexml.c src/util.c src/mingw_functions.c

$(LIBS3_SHARED): $(LIBS3_SOURCES:src/%.c=$(BUILD)/obj/%.o)
	-@mkdir $(subst /,\,$(dir $@))
	gcc -shared -o $@ $^ $(LDFLAGS) -lws2_32

$(BUILD)/lib/libs3.a: $(LIBS3_SHARED)
	-@mkdir $(subst /,\,$(dir $@))
	dlltool --def mswin\libs3.def --dllname $(subst /,\,$<) \
            --output-lib $(subst /,\,$@)


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

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

$(BUILD)/bin/s3.exe: $(BUILD)/obj/s3.o $(BUILD)/obj/mingw_s3_functions.o \
                     $(BUILD)/lib/libs3.a
	-@mkdir $(subst /,\,$(dir $@))
	gcc -o $@ $^ $(LDFLAGS) -lws2_32


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

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

$(BUILD)\include\libs3.h: inc\libs3.h
	-@mkdir $(subst /,\,$(dir $@))
	copy $< $@


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

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

$(BUILD)/bin/testsimplexml: $(BUILD)/obj/testsimplexml.o \
                            $(BUILD)/obj/simplexml.o
	-@mkdir $(subst /,\,$(dir $@))
	gcc -o $@ $^ $(LIBXML2_LIBS)


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

.PHONY: clean
clean:
	mswin\rmrf.bat $(BUILD)