#!/bin/bash
#
# Set this script executable (chmod +x build_all_cairo) and
# run it (./build_all_cairo).
#
# It will produce BuildCairo/ folder, with Resources/ and Include/.
#
# david van brink 2011.12.27
#
# Adapted from http://cairographics.org/end_to_end_build_for_mac_os_x/
#
# Initial Setup
#
# Changes from Travis Griggs' original instructions:
#
# 1. Put it in ./ instead of ../Frameworks/.
#    This gave me more flexibility for deploying next to
#    plain old binaries, &c. More DLL's of olden times.
#
# 2. Cairo 1.10.2 fixes a Mac OS X bug where harmless but
#    unsightly error messages are emitted in some cases,
#    if you're doing headless work I think. (Also bump
#    to pixman 0.24.0.)
#
# 3. Use @loader_path instead of @executable_path, so my plugin
#    code can refer to cairo in its local bundle... and
#    I use it as ./dylib, rather than ../Frameworks/dylib
#
# To use:
# 1. Run this script, which produces BuildCairo folder.
# 2. Add BuildCairo/include/ to your search path
#    (In XCode Build Settings, be sure to "Show All" settings,
#    search for Path, and enable "Always Search User Paths".)
# 3. Add the files in BuildCairo/Resources (1 by 1, not the folder)
#    (These are added to Build Phases "Link Binary With Library" and
#    also to "Copy Bundle Resources".)
#


# +------------------------
# | Clean output directory

export BuildDir=`pwd`/BuildCairo
rm -rf ${BuildDir}
mkdir ${BuildDir}
cd ${BuildDir}

# +------------------------
# | Fetch the components, renamed without version numbers

curl http://pkgconfig.freedesktop.org/releases/pkg-config-0.23.tar.gz -o pkgconfig.tgz
curl ftp://ftp.simplesystems.org/pub/libpng/png/src/libpng-1.2.46.tar.gz -o libpng.tgz
#curl http://www.cairographics.org/releases/pixman-0.16.2.tar.gz -o pixman.tgz
curl http://www.cairographics.org/releases/pixman-0.24.0.tar.gz -o pixman.tgz
#curl http://www.cairographics.org/releases/cairo-1.8.8.tar.gz -o cairo.tgz
#curl http://www.cairographics.org/releases/cairo-1.8.10.tar.gz -o cairo.tgz
curl http://www.cairographics.org/releases/cairo-1.10.2.tar.gz -o cairo.tgz

# | dvb11: 1.10 is later, but I could NOT get its ./configure to work. :(
# | the "2" means for python 2.x
curl http://cairographics.org/releases/py2cairo-1.8.10.tar.gz -o py2cairo.tgz

# +------------------------
# | Expand the tarballs

tar -xzf pkgconfig.tgz
tar -xzf libpng.tgz
tar -xzf pixman.tgz
tar -xzf cairo.tgz
tar -xzf py2cairo.tgz

# +------------------------
# | And again, rename the result folders without version numbers

mv pkg-config-* pkgconfig
mv libpng-* libpng
mv pixman-* pixman
mv cairo-* cairo
mv py*cairo-* py2cairo

# +------------------------
# | Build Pkg-config

cd ${BuildDir}/pkgconfig
./configure --prefix=${BuildDir}
make
make install

# | And use this local version from here out

export PKG_CONFIG=${BuildDir}/bin/pkg-config
export PKG_CONFIG_PATH=${BuildDir}/lib/pkgconfig

# +------------------------
# | Environment for which targets, SDK, &c
# | (I'm doing only 64-bit, 10.6 and later.)

export MACOSX_DEPLOYMENT_TARGET=10.6
export CC="gcc-4.2"
export LDFLAGS="-arch x86_64 -isysroot /Developer/SDKs/MacOSX10.6.sdk"
export CFLAGS="-Os -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.6.sdk"

# +------------------------
# | Build libpng

cd ${BuildDir}/libpng
./configure --prefix=${BuildDir} --disable-dependency-tracking
make
make install

# +------------------------
# | Build pixman

cd ${BuildDir}/pixman
./configure --prefix=${BuildDir} --disable-dependency-tracking
make
make install

# +------------------------
# | Build cairo

cd ${BuildDir}/cairo
./configure --prefix=${BuildDir} --disable-xlib --disable-ft --disable-dependency-tracking
make
make install

# +------------------------
# | Build py cairo

cd ${BuildDir}/py2cairo
./configure --prefix=${BuildDir}
make
make install

# +------------------------------
# | Gather the dylibs
# |
# | NOTE! Travis Griggs (travisgriggs@gmail.com)'s instructions put them
# | in a folder called "Frameworks". I'm keeping them local, 
# | so they need to be *next to* whoever uses them.

DYLIBS=${BuildDir}/Dylibs
mkdir ${DYLIBS}
cd ${DYLIBS}
cp ${BuildDir}/lib/libpng12.0.dylib .
cp ${BuildDir}/lib/libpixman-1.0.dylib .
cp ${BuildDir}/lib/libcairo.2.dylib .

# +------------------------
# | fix paths...
# |
# | Here is the mysterious magic that lets the libraries be
# | transported with your app bundle. I think it tells the
# | libraries where to consider themselves, and where to
# | consider their inter-library dependencies...

install_name_tool -id @loader_path/libpng12.0.dylib libpng12.0.dylib
install_name_tool -id @loader_path/libpixman-1.0.dylib libpixman-1.0.dylib
install_name_tool -id @loader_path/libcairo.2.dylib libcairo.2.dylib
install_name_tool -change ${BuildDir}/lib/libpixman-1.0.dylib @loader_path/libpixman-1.0.dylib libcairo.2.dylib
install_name_tool -change ${BuildDir}/lib/libpng12.0.dylib @loader_path/libpng12.0.dylib libcairo.2.dylib

# | Fix up pycairo to point locally, too.
PYCAIRO=${BuildDir}/lib/python2.6/site-packages/cairo
cd ${PYCAIRO}
install_name_tool -change ${BuildDir}/lib/libpixman-1.0.dylib @loader_path/libpixman-1.0.dylib _cairo.so
install_name_tool -change ${BuildDir}/lib/libpng12.0.dylib @loader_path/libpng12.0.dylib _cairo.so
install_name_tool -change ${BuildDir}/lib/libcairo.2.dylib @loader_path/libcairo.2.dylib _cairo.so

# | And make copies of the libraries right here, for pycairo direct install, too.
cp ${DYLIBS}/libpng12.0.dylib .
cp ${DYLIBS}/libpixman-1.0.dylib .
cp ${DYLIBS}/libcairo.2.dylib .

echo .
echo . Done Building
echo . Find the dynamic libraries in ${DYLIBS}
echo . Find the Python Cairo library in ${PYCAIRO}

# Done!