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+#!/bin/sh
+#
+# Building OSX fat binaries is easy.
+#
+# - start in a clean directory.
+# - copy the shell script below to a file and edit the file to your needs.
+#
+# 1.) modify export GEOIP_ARCH='-arch i386 -arch x86_64 -arch ppc -arch ppc64'
+# to include all architectures you need.
+# 2.) add whatever you want to the ./configure line.
+# 3.) execute the script.
+# 4.) do a 'make install'
+#
+#
+# make clean or make distclean before building this
+#
+# tell systems before leopard that we like to build for 10.5 or higher
+# with MACOSX_DEPLOYMENT_TARGET=10.5
+# starting with leopard we have to add -mmacosx-version-min=10.5
+# to the CFLAGS and export MACOSX_DEPLOYMENT_TARGET!?
+
+##  for tiger, leopard and snow leopard you might use this
+## export GEOIP_ARCH='-arch i386 -arch x86_64 -arch ppc -arch ppc64'
+## export MACOSX_DEPLOYMENT_TARGET=10.4
+## export LDFLAGS=$GEOIP_ARCH
+## export CFLAGS="-mmacosx-version-min=10.4 -isysroot /Developer/SDKs/MacOSX10.4u.sdk $GEOIP_ARCH"
+
+# here we go for leopard and snow leopard
+#export GEOIP_ARCH='-arch i386 -arch x86_64 -arch ppc'
+#export MACOSX_DEPLOYMENT_TARGET=10.5
+#export LDFLAGS=$GEOIP_ARCH
+#export CFLAGS="-g -mmacosx-version-min=10.5 -isysroot /Developer/SDKs/MacOSX10.5.sdk $GEOIP_ARCH"
+#./configure --disable-dependency-tracking
+#perl -i.bak -pe'/^archive_cmds=/ and !/\bGEOIP_ARCH\b/ and s/-dynamiclib\b/-dynamiclib \\\$(GEOIP_ARCH)/' ./libtool
+#make
+
+# and this is lion with the new xcode
+#P=`xcode-select -print-path`
+#export GEOIP_ARCH='-arch i386 -arch x86_64'
+#export MACOSX_DEPLOYMENT_TARGET=10.7
+#export LDFLAGS=$GEOIP_ARCH
+#export CFLAGS="-g -mmacosx-version-min=10.7 -isysroot $P/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk $GEOIP_ARCH"
+#./configure --disable-dependency-tracking
+#make
+
+# and this is lion with the new xcode
+P=`xcode-select -print-path`
+export GEOIP_ARCH='-arch x86_64'
+export MACOSX_DEPLOYMENT_TARGET=10.9
+export LDFLAGS=$GEOIP_ARCH
+export CFLAGS="-g -mmacosx-version-min=10.9 -isysroot $P/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk $GEOIP_ARCH"
+./configure --disable-dependency-tracking
+make