====== building OSX applications ======

Some handy commandlines for building and deploying applications and libraries on Mac/OSX


Multiple architecture build flags for autoconf projects on OSX:

  PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH \
  CFLAGS="-arch i386 -arch ppc -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5" \
  CXXFLAGS="-arch i386 -arch ppc -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5" \
  LDFLAGS="$CFLAGS" \
  ./configure --disable-dependency-tracking

//workaround// for some buggy configure/libtool scripts:

  PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH \
  CFLAGS="-I/usr/local/include" CXXFLAGS="-I/usr/local/include" LDFLAGS="-L/usr/local/lib" \
  CC="gcc -arch i386 -arch ppc -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5" \
  CXX="gcc -arch i386 -arch ppc -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5" \
  CPP='cpp' CXXCPP='cpp' LDFLAGS="$CFLAGS" \
  ./configure --disable-dependency-tracking --enable-shared

\\
for gtk+: set ''PKG_CONFIG_PATH''

  ./configure --prefix /Users/rgareus/gtk/inst --libdir /Users/rgareus/gtk/inst/lib --disable-static --disable-dependency-tracking CFLAGS="-arch i386 -arch ppc -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5 -I/Users/rgareus/gtk/inst/include/" CXXFLAGS="-arch i386 -arch ppc -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5" LDFLAGS="-arch i386 -arch ppc -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5 -L/Users/rgareus/gtk/inst/lib/"
  
\\
find out compiler defines: eg ''%%__ppc%%'', ''%%__i386%%'', or ''%%__x86_64%%'': 

  gcc -dM -E - < /dev/null

\\
\\
''strace'' on Mac is called ''dtruss'' :)
\\
\\
update library paths: 
see also: http://doc.trolltech.com/qq/qq09-mac-deployment.html

  for file in $(ls *); do \
    echo "$file --"; \
    for dest in $(otool -L $file | grep local/| cut -f 1 -d ' '); do\
      new=$(basename $dest); \
      test "$file" = "$new" || echo "install_name_tool -change $dest $new $file";\
    done ;\
  done

\\
Debugging/leak detection:
  * http://developer.apple.com/Mac/library/documentation/Performance/Conceptual/ManagingMemory/Articles/FindingLeaks.html
  * http://developer.apple.com/Mac/library/documentation/Performance/Conceptual/ManagingMemory/Articles/MallocDebug.html#//apple_ref/doc/uid/20001884-CJBJFIDD

  export MallocStackLogging=1
  export MallocCheckHeapStart=1000
  export MallocCheckHeapEach=100
  ./myapp

  leaks -nocontext `ps x | grep myapp | grep -v grep | awk '{print $1;}'` | less

\\
auto-update lib-paths aka post-install script:

<code>
export INSTALLED=""
export LIBS_PATH="$TARGET_BUILD_DIR/$PRODUCT_NAME.app/Contents/Frameworks"
mkdir -p $LIBS_PATH
export TARGET="$TARGET_BUILD_DIR/$PRODUCT_NAME.app/Contents/MacOS/$PRODUCT_NAME"

follow_dependencies () {
	libname=$1
	cd "$TARGET_BUILD_DIR/$PRODUCT_NAME.app/Contents/Frameworks"
	dependencies=`otool -arch all -L "$libname"  | egrep '\/(opt|usr)\/local\/lib' | awk '{print $1}'`
	for l in $dependencies; do
		depname=`basename $l`
		deppath=`dirname $l`
		if [ ! -f "$TARGET_BUILD_DIR/$PRODUCT_NAME.app/Contents/Frameworks/$depname" ]; then
			deploy_lib $depname "$deppath"
		fi
	done
}

update_links () {
	libname=$1
	libpath=$2
	for n in `ls $LIBS_PATH/*`; do
		install_name_tool \
			-change "$libpath/$libname" \
			@executable_path/../Frameworks/$libname \
			"$n"
	done
}

deploy_lib () {
	libname=$1
	libpath=$2
	check=`echo $INSTALLED | grep $libname`
	if [ "X$check" = "X" ]; then
		if [ ! -f "$TARGET_BUILD_DIR/$PRODUCT_NAME.app/Contents/Frameworks/$libname" ]; then
			cp -f "$libpath/$libname" "$TARGET_BUILD_DIR/$PRODUCT_NAME.app/Contents/Frameworks/$libname"
			install_name_tool \
				-id @executable_path/../Frameworks/$libname \
				"$TARGET_BUILD_DIR/$PRODUCT_NAME.app/Contents/Frameworks/$libname"
			follow_dependencies $libname
		fi
		export INSTALLED="$INSTALLED $libname"
	fi
	update_links $libname $libpath
}

update_executable() {
	LIBS=`otool -arch all -L "$TARGET" | egrep '\/(opt|usr)\/local\/lib' | awk '{print $1}'`
	for l in $LIBS; do
		libname=`basename $l`
		libpath=`dirname $l`
		deploy_lib $libname $libpath
		echo "install_name_tool -change $libpath/$libname @executable_path/../Frameworks/$libname \"$TARGET\""
		install_name_tool \
			-change $libpath/$libname \
			@executable_path/../Frameworks/$libname \
			"$TARGET"
	done
}

update_executable
cd $LIBS_PATH && MORELIBS=`otool -arch all -L * | egrep '\/(opt|usr)\/local\/lib' | awk '{print $1}'` && cd -
while [ "X$MORELIBS" != "X" ]; do
	for l in $MORELIBS; do
		libname=`basename $l`
		libpath=`dirname $l`
		deploy_lib "$libname" "$libpath"
	done
	cd $LIBS_PATH && MORELIBS=`otool -arch all -L * | egrep '\/(opt|usr)\/local\/lib' | awk '{print $1}'` && cd -
done
update_executable

</code>

Roll a DMG:

http://stackoverflow.com/questions/96882/how-do-i-create-a-nice-looking-dmg-for-mac-os-x-using-command-line-tools

<code>
#!/bin/sh
VERSION=2.0
DMGFILE=/tmp/oggzcap-$VERSION.dmg
echo $DMGFILE

BUILD=build/Release/OggZCap.app

xcodebuild clean \
&& xcodebuild \
||exit

#roll a DMG
TMPFILE=/tmp/ogztmp.dmg
MNTPATH=/tmp/mnt/
VOLNAME=OggZCap

mkdir -p $MNTPATH
if [ -e $TMPFILE -o -e $DMGFILE -o ! -d $MNTPATH ]; then
  echo "could not make DMG.."
  exit;
fi

hdiutil create -megabytes 100 $TMPFILE
DiskDevice=$(hdid -nomount "${TMPFILE}" | grep Apple_HFS | cut -f 1 -d ' ')
newfs_hfs -v "${VOLNAME}" "${DiskDevice}"
mount -t hfs "${DiskDevice}" "${MNTPATH}"

cp -r ${BUILD} ${MNTPATH}/
ln -s /Applications ${MNTPATH}/Applications

# Umount the image
umount "${DiskDevice}"
hdiutil eject "${DiskDevice}"

# Create a read-only version, use zlib compression
hdiutil convert -format UDZO "${TMPFILE}" -o "${DMGFILE}"

# Delete the temporary files
rm $TMPFILE
rmdir $MNTPATH
</code>
{{tag>development}}