# 2010-07-07, benjamin: receipt for building rsync3 universal binary for
#   mac os x 10.4+ ppc/i386/x86_64 on a build host running 10.6
#   based upon http://www.bombich.com/mactips/rsync.html

# install xcode from http://developer.apple.com/technologies/xcode.html

# get sources
curl -O http://samba.anu.edu.au/ftp/rsync/rsync-3.0.7.tar.gz
curl -O http://samba.anu.edu.au/ftp/rsync/rsync-patches-3.0.7.tar.gz

# optionally verify signatures
curl -O http://samba.anu.edu.au/ftp/rsync/rsync-3.0.7.tar.gz.asc
gpg --verify rsync-3.0.7.tar.gz.asc
curl -O http://samba.anu.edu.au/ftp/rsync/rsync-patches-3.0.7.tar.gz.asc
gpg --verify rsync-patches-3.0.7.tar.gz.asc

# apply patches relevant for preserving Mac OS X metadata
tar xvzf rsync-3.0.7.tar.gz
tar xvzf rsync-patches-3.0.7.tar.gz
cd rsync-3.0.7/
patch -p1 <patches/fileflags.diff
patch -p1 <patches/crtimes.diff

# build 10.4+ ppc binary
CC="gcc-4.0" LDFLAGS="-arch ppc" CFLAGS="-arch ppc -isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4" ./configure
make -j4
mv rsync rsync3.ppc

# build 10.4+ x86 binary
CC="gcc-4.0" LDFLAGS="-arch i386" CFLAGS="-arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4" ./configure
make -j4
mv rsync rsync3.i386

# build 10.5+ x86_64 binary
CC="gcc-4.2" LDFLAGS="-arch x86_64" CFLAGS="-arch x86_64 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5" ./configure
make -j4
mv rsync rsync3.x86_64

# combine platform specific binaries into an universal binary
lipo -create rsync3.ppc rsync3.i386 rsync3.x86_64 -output rsync3

# eof.