#
#    Copyright (c) 2010-2016 Nest, Inc.
#    All rights reserved.
#
#    This document is the property of Nest. It is considered
#    confidential and proprietary information.
#
#    This document may not be reproduced or transmitted in any form,
#    in whole or in part, without the express written permission of
#    Nest.
#
#    Description:
#      This file is the makefile for the library and command line
#      utility for transferring files with URL syntax, libcurl and
#      curl, respectively.
#

include pre.mak

PackageName		:= curl

PackageExtension	:= tar.gz
PackageSeparator	:= -

PackagePatchArgs    := -p1

PackageArchive		:= $(PackageName).$(PackageExtension)
PackageSourceDir	:= $(PackageName)$(PackageSeparator)$(PackageVersion)

PackageBuildMakefile	= $(call GenerateBuildPaths,Makefile)

CleanPaths		+= $(PackageLicenseFile)

SOURCEDIRS                      = $(PackageSourceDir)
$(PackageSourceDir)_RULE_TARGET = $(BuildDirectory)/configure

all: $(PackageDefaultGoal)

# Generate the package license contents.

$(PackageSourceDir)/COPYING: $(BuildDirectory)/source

$(PackageLicenseFile): $(PackageSourceDir)/COPYING
	$(copy-result)

# Extract the source from the archive and apply patches, if any.

$(PackageSourceDir): $(PackageArchive) $(PackagePatchPaths)
	$(expand-and-patch-package)

# Prepare the sources.

$(BuildDirectory)/source: | $(PackageSourceDir) $(BuildDirectory)
	$(Verbose)touch $@

.PHONY: source
source: $(BuildDirectory)/source

# Patch the sources, if necessary.

$(BuildDirectory)/patch: $(BuildDirectory)/source
	$(Verbose)touch $@

.PHONY: patch
patch: $(BuildDirectory)/patch

# Generate the package build makefile.
#
# For non-cross-compiled targets (e.g. simulators), the curl configure
# attempts to perform run-time tests.
#
# To ensure this works against the in-project versions of openssl and
# zlib, the paths to these shared objects MUST be found by the dynamic
# loader.

$(BuildDirectory)/configure: export $(LoaderSearchPath) := $(OpenSSLLibraryPath):$(dir $(ZlibLibraryPath)):$($(LoaderSearchPath))

# Configure the source for building.

$(BuildDirectory)/configure: $(BuildDirectory)/source | $(PackageSourceDir) $(BuildDirectory)
	$(Verbose)cd $(BuildDirectory) && \
	$(CURDIR)/$(PackageSourceDir)/configure \
	INSTALL="$(INSTALL) $(INSTALLFLAGS)" \
	CC="$(CC) $(CPPOPTFLAGS)" CXX="$(CXX) $(CPPOPTFLAGS)" AR=$(AR) RANLIB=$(RANLIB) STRIP=$(STRIP) \
	CPPFLAGS="$(call ToolGenerateIncludeArgument,$(OpenSSLIncludePath)) \
	          $(call ToolGenerateIncludeArgument,$(LinuxIncludePath))" \
	LDFLAGS="$(call GenerateResolveArguments,$(ZlibDependPath)) \
	$(call GenerateResolveArguments,$(OpenSSLDependPaths)) \
	$(call ToolGenerateLibraryPathArgument,$(OpenSSLLibraryPath))" \
	--build=$(HostTuple) \
	--host=$(TargetTuple) \
	$(CurlPackageOptions) \
	--disable-ares \
	--disable-dict \
	--disable-gopher \
	--disable-imap \
	--disable-ldap \
	--disable-ldaps \
	--disable-manual \
	--disable-ntlm-wb \
	--disable-pop3 \
	--disable-rtsp \
	--disable-smtp \
	--disable-telnet \
	--enable-ipv6 \
	--with-ssl=$(OpenSSLPrefixPath) \
	--with-zlib=$(ZlibPrefixPath) \
	--without-libidn \
	--prefix=$(addprefix $(LibPrefixConfigOption),/usr) \
	--sysconfdir=$(addprefix $(LibPrefixConfigOption),/etc) \
	--localstatedir=$(addprefix $(LibPrefixConfigOption),/var) \
	--disable-static
	$(Verbose)touch $@

.PHONY: configure
configure: $(BuildDirectory)/configure

# Build the source.
#
# We have to unset MAKEFLAGS since they confuse the package build otherwise.

$(BuildDirectory)/build: $(BuildDirectory)/configure
	$(Verbose)unset MAKEFLAGS && \
	$(MAKE) $(JOBSFLAG) -C $(BuildDirectory) all
	$(Verbose)touch $@

.PHONY: build
build: $(BuildDirectory)/build

# Stage the build to a temporary installation area.
#
# We have to unset MAKEFLAGS since they confuse the package build otherwise.
#
# We explictly remove 'libcurl.la' because some packages that depend
# on libcurl use libtool. If libtool finds a '*.la' file for a
# library, it uses the value of 'libdir=<dir>' it finds. In our case,
# since '--prefix=/usr' this value is '/usr/lib'. It then resolves
# '-lcurl' to '/usr/lib/libcurl.so'. In a cross-compilation
# environment, this is likely to be neither the right architecture nor
# the right version to link against. In short, we lose.
#
# We could also handle this by removing DESTDIR and setting the prefix
# to $(ResultDirectory); however, that results in libtool hard-coding
# $(ResultDirectory) as the RPATH in the linked executables which is
# NOT what we want either. We lose again.
#
# By removing the '*.la' file, we win by ensuring neither a misdirected
# link nor an RPATH.

$(BuildDirectory)/stage: $(BuildDirectory)/build | $(ResultDirectory)
	$(Verbose)unset MAKEFLAGS && \
	$(MAKE) $(JOBSFLAG) -C $(BuildDirectory) $(call GenerateLibraryDestinationArgument,$(ResultDirectory)) install
	$(Verbose)$(RM) $(RMFLAGS) $(call GenerateResultPaths,,usr/lib/libcurl.la) 
	$(Verbose)touch $@

.PHONY: stage
stage: $(BuildDirectory)/stage

clean:
	$(Verbose)$(RM) $(RMFLAGS) -r $(PackageSourceDir)
	$(Verbose)$(RM) $(RMFLAGS) -r $(BuildDirectory)
	$(Verbose)$(RM) $(RMFLAGS) -r $(ResultDirectory)

include post.mak