# Common shell definitions

FEATURE_SCRIPTS=`dirname $0`
FEATURE_BIN=${FEATURE_SCRIPTS}/../bin

trap '[ -n "${tcTempFile}" ] && rm -f "${tcTempFile}"' EXIT 1 2 3 15

function tcArchiveIn_usr_local_lib_system {
    [ -r "${SDKROOT}/usr/local/lib/system/$1.a" ]
}

function tcComponentInLibsystem {
    what ${SDKROOT}/usr/lib/libSystem.dylib | \
    tail -n +2 | \
    sed -e 's/^[ 	]*//' -e 's/PROGRAM://' -e 's/LIBRARY://' | \
    grep -q "^$1[^_[:alnum:]]"
}

function tcFrameworkExists {
    tcTempFile=`mktemp -t tconf`
    ${FEATURE_BIN}/gcc -bundle ${RC_CFLAGS} -o ${tcTempFile} -x c /dev/null -Wl,-arch_errors_fatal -framework $1 2>/dev/null
}

function tcHeaderExists {
    tcTempFile=`mktemp -t tconf`
    ${FEATURE_BIN}/gcc -c ${RC_CFLAGS} -o ${tcTempFile} -include $1 -x c /dev/null 2>/dev/null
}

function tcLibraryExists {
    tcTempFile=`mktemp -t tconf`
    ${FEATURE_BIN}/gcc -bundle ${RC_CFLAGS} -o ${tcTempFile} -x c /dev/null -Wl,-arch_errors_fatal -l$1 2>/dev/null
}