#!/bin/bash
# This script performs all of the steps needed to build a
# universal binary libcurl.framework for Mac OS X 10.4 or greater.
#
# Hendrik Visage:
#  Generalizations added since  Snowleopard (10.6) do not include
# the 10.4u SDK.
#
# Also note:
# 10.5 is the *ONLY* SDK that support PPC64 :( -- 10.6 do not have ppc64 support
#If you need to have PPC64 support then change below to 1
PPC64_NEEDED=0
# Apple does not support building for PPC anymore in Xcode 4 and later.
# If you're using Xcode 3 or earlier and need PPC support, then change
# the setting below to 1
PPC_NEEDED=0

# For me the default is to develop for the platform I am on, and if you
#desire compatibility with older versions then change USE_OLD to 1 :)
USE_OLD=0

VERSION=`/usr/bin/sed -ne 's/^#define LIBCURL_VERSION "\(.*\)"/\1/p' include/curl/curlver.h`
FRAMEWORK_VERSION=Versions/Release-$VERSION

#I also wanted to "copy over" the system, and thus the reason I added the
# version to Versions/Release-7.20.1 etc.
# now a simple rsync -vaP libcurl.framework /Library/Frameworks will install it
# and setup the right paths to this version, leaving the system version
# "intact", so you can "fix" it later with the links to Versions/A/...

DEVELOPER_PATH=`xcode-select --print-path`
# Around Xcode 4.3, SDKs were moved from the Developer folder into the
# MacOSX.platform folder
if test -d "$DEVELOPER_PATH/Platforms/MacOSX.platform/Developer/SDKs"; then
 SDK_PATH="$DEVELOPER_PATH/Platforms/MacOSX.platform/Developer/SDKs"
else
 SDK_PATH="$DEVELOPER_PATH/SDKs";
fi
OLD_SDK=`ls  $SDK_PATH|head -1`
NEW_SDK=`ls -r $SDK_PATH|head -1`

if test "0"$USE_OLD -gt 0
then
 SDK32=$OLD_SDK
else
 SDK32=$NEW_SDK
fi

MACVER=`echo $SDK32|sed -e s/[a-zA-Z]//g -e s/.\$//`

SDK32_DIR=$SDK_PATH/$SDK32
MINVER32='-mmacosx-version-min='$MACVER
if test $PPC_NEEDED -gt 0; then
 ARCHES32='-arch i386 -arch ppc'
else
 ARCHES32='-arch i386'
fi

if test $PPC64_NEEDED -gt 0
then
  SDK64=10.5
  ARCHES64='-arch x86_64 -arch ppc64'
  SDK64=`ls  $SDK_PATH|grep 10.5|head -1`
else
 ARCHES64='-arch x86_64'
 #We "know" that 10.4 and earlier do not support 64bit
 OLD_SDK64=`ls  $SDK_PATH|egrep -v "10.[0-4]"|head -1`
 NEW_SDK64=`ls -r $SDK_PATH|egrep -v "10.[0-4][^0-9]" | head -1`
 if test $USE_OLD -gt 0
  then
   SDK64=$OLD_SDK64
  else
   SDK64=$NEW_SDK64
  fi
fi

SDK64_DIR=$SDK_PATH/$SDK64
MACVER64=`echo $SDK64|sed -e s/[a-zA-Z]//g -e s/.\$//`

MINVER64='-mmacosx-version-min='$MACVER64

if test ! -z $SDK32; then
  echo "----Configuring libcurl for 32 bit universal framework..."
  make clean
  ./configure --disable-dependency-tracking --disable-static --with-gssapi --with-darwinssl \
    CFLAGS="-Os -isysroot $SDK32_DIR $ARCHES32" \
    LDFLAGS="-Wl,-syslibroot,$SDK32_DIR $ARCHES32 -Wl,-headerpad_max_install_names" \
    CC=$CC

  echo "----Building 32 bit libcurl..."
  make -j `sysctl -n hw.logicalcpu_max`

  echo "----Creating 32 bit framework..."
  rm -r libcurl.framework
  mkdir -p libcurl.framework/${FRAMEWORK_VERSION}/Resources
  cp lib/.libs/libcurl.dylib libcurl.framework/${FRAMEWORK_VERSION}/libcurl
  install_name_tool -id @rpath/libcurl.framework/${FRAMEWORK_VERSION}/libcurl libcurl.framework/${FRAMEWORK_VERSION}/libcurl
  /usr/bin/sed -e "s/7\.12\.3/$VERSION/" lib/libcurl.plist >libcurl.framework/${FRAMEWORK_VERSION}/Resources/Info.plist
  mkdir -p libcurl.framework/${FRAMEWORK_VERSION}/Headers/curl
  cp include/curl/*.h libcurl.framework/${FRAMEWORK_VERSION}/Headers/curl
  pushd libcurl.framework
  ln -fs ${FRAMEWORK_VERSION}/libcurl libcurl
  ln -fs ${FRAMEWORK_VERSION}/Resources Resources
  ln -fs ${FRAMEWORK_VERSION}/Headers Headers
  cd Versions
  ln -fs $(basename "${FRAMEWORK_VERSION}") Current

  echo Testing for SDK64
  if test -d $SDK64_DIR; then
  echo entering...
    popd
    make clean
    echo "----Configuring libcurl for 64 bit universal framework..."
    ./configure --disable-dependency-tracking --disable-static --with-gssapi --with-darwinssl \
      CFLAGS="-Os -isysroot $SDK64_DIR $ARCHES64" \
      LDFLAGS="-Wl,-syslibroot,$SDK64_DIR $ARCHES64 -Wl,-headerpad_max_install_names" \
      CC=$CC

    echo "----Building 64 bit libcurl..."
    make -j `sysctl -n hw.logicalcpu_max`

    echo "----Appending 64 bit framework to 32 bit framework..."
    cp lib/.libs/libcurl.dylib libcurl.framework/${FRAMEWORK_VERSION}/libcurl64
    install_name_tool -id @rpath/libcurl.framework/${FRAMEWORK_VERSION}/libcurl libcurl.framework/${FRAMEWORK_VERSION}/libcurl64
    cp libcurl.framework/${FRAMEWORK_VERSION}/libcurl libcurl.framework/${FRAMEWORK_VERSION}/libcurl32
    pwd
    lipo libcurl.framework/${FRAMEWORK_VERSION}/libcurl32 libcurl.framework/${FRAMEWORK_VERSION}/libcurl64 -create -output libcurl.framework/${FRAMEWORK_VERSION}/libcurl
    rm libcurl.framework/${FRAMEWORK_VERSION}/libcurl32 libcurl.framework/${FRAMEWORK_VERSION}/libcurl64
    cp libcurl.framework/${FRAMEWORK_VERSION}/Headers/curl/curlbuild.h libcurl.framework/${FRAMEWORK_VERSION}/Headers/curl/curlbuild32.h
    cp include/curl/curlbuild.h libcurl.framework/${FRAMEWORK_VERSION}/Headers/curl/curlbuild64.h
    cat >libcurl.framework/${FRAMEWORK_VERSION}/Headers/curl/curlbuild.h <<EOF
#ifdef __LP64__
#include "curl/curlbuild64.h"
#else
#include "curl/curlbuild32.h"
#endif
EOF
  fi

  pwd
  lipo -info libcurl.framework/${FRAMEWORK_VERSION}/libcurl
  echo "libcurl.framework is built and can now be included in other projects."
  echo "Copy libcurl.framework to your bundle's Contents/Frameworks folder, ~/Library/Frameworks or /Library/Frameworks."
else
  echo "Building libcurl.framework requires Mac OS X 10.4 or later with the MacOSX10.4/5/6 SDK installed."
fi
