Building OSX App Bundle

Question

Suppose I have have made a an osX app without using Xcode. After compiling with GCC I get an executable which is linked to several other libraries. Some of those libraries m

Answer 1

I wish I've found this post earlier....

Here's my sketchy way of solving this problem using a Run script phase which is invoked every time I build a Release version of my app:

# this is an array of my dependencies' libraries paths 
# which will be iterated in order to find those dependencies using otool -L
libpaths=("$NDNRTC_LIB_PATH" "$BOOST_LIB_PATH" "$NDNCHAT_LIB_PATH" "$NDNCPP_LIB_PATH" "/opt/local/lib")
frameworksDir=$BUILT_PRODUCTS_DIR/$FRAMEWORKS_FOLDER_PATH
executable=$BUILT_PRODUCTS_DIR/$EXECUTABLE_PATH

#echo "libpaths $libpaths"
bRecursion=0
lRecursion=0

# this function iterates through libpaths array
# and checks binary with "otool -L" command for containment
# of dependency which has "libpath" path
# if such dependency has been found, it will be copied to Frameworks 
# folder and binary will be fixed with "install_name_tool -change" command
# to point to Frameworks/ library
# then, dependency is checked recursively with resolveDependencies function
function resolveDependencies()
{
    local binfile=$1
    local prefix=$2
    local binname=$(basename $binfile)
    local offset=$((lRecursion*20))
    printf "%s :\t%s\n" $prefix "resolving $binname..."

    for path in ${libpaths[@]}; do
        local temp=$path
        #echo "check lib path $path"
        local pattern="$path/([A-z0-9.-]+\.dylib)"
        while [[ "$(otool -L ${binfile})" =~ $pattern ]]; do
            local libname=${BASH_REMATCH[1]}
            otool -L ${binfile}
            #echo "found match $libname"
            printf "%s :\t%s\n" $prefix "fixing $libname..."
            local libpath="${path}/$libname"
            #echo "cp $libpath $frameworksDir"
            ${SRCROOT}/sudocp.sh $libpath $frameworksDir/$libname $(whoami)
            local installLibPath="@rpath/$libname"
            #echo "install_name_tool -change $libpath $installLibPath $binfile"
            if [ "$libname" == "$binname" ]; then
                install_name_tool -id "@rpath/$libname" $binfile
                printf "%s :\t%s\n" $prefix "fixed id for $libname."
            else
                install_name_tool -change $libpath $installLibPath $binfile
                printf "%s :\t%s\n" $prefix "$libname dependency resolved."
                let lRecursion++
                resolveDependencies "$frameworksDir/$libname" "$prefix>$libname"
                resolveBoostDependencies "$frameworksDir/$libname" "$prefix>$libname"
                let lRecursion--
            fi
            path=$temp
        done # while
    done # for

    printf "%s :\t%s\n" $prefix "$(basename $binfile) resolved."
} # resolveDependencies

# for some reason, unlike other dependencies which maintain full path
# in "otool -L" output, boost libraries do not - they just appear 
# as "libboost_xxxx.dylib" entries, without fully qualified path
# thus, resolveDependencies can't be used and a designated function is needed
# this function works pretty much in a similar way to resolveDependencies
# but targets only dependencies starting with "libboost_", copies them
# to the Frameworks folder and resolves them recursively
function resolveBoostDependencies()
{
    local binfile=$1
    local prefix=$2
    local binname=$(basename $binfile)
    local offset=$(((bRecursion+lRecursion)*20))
    printf "%s :\t%s\n" $prefix "resolving Boost for $(basename $binfile)..."

    local pattern="[[:space:]]libboost_([A-z0-9.-]+\.dylib)"
    while [[ "$(otool -L ${binfile})" =~ $pattern ]]; do
        local libname="libboost_${BASH_REMATCH[1]}"
        #echo "found match $libname"
        local libpath="${BOOST_LIB_PATH}/$libname"
        #echo "cp $libpath $frameworksDir"
        ${SRCROOT}/sudocp.sh $libpath $frameworksDir/$libname $(whoami)
        installLibPath="@rpath/$libname"
        #echo "install_name_tool -change $libname $installLibPath $binfile"
        if [ "$libname" == "$binname" ]; then
            install_name_tool -id "@rpath/$libname" $binfile
            printf "%s :\t%s\n" $prefix "fixed id for $libname."
        else
            install_name_tool -change $libname $installLibPath $binfile
            printf "%s :\t%s\n" $prefix "$libname Boost dependency resolved."
            let bRecursion++
            resolveBoostDependencies "$frameworksDir/$libname" "$prefix>$libname"
            let bRecursion--
        fi
    done # while

    printf "%s :\t%s\n" $prefix "$(basename $binfile) resolved."
}

resolveDependencies $executable $(basename $executable)
resolveBoostDependencies $executable $(basename $executable)

Hope this might be useful to someone.