Hi
In one of our projects we are experiencing a problem which seems to be
related to the fact that the -flat_namespace option is not being
passed to the linker, looking into why this is the case I see the
following code in libtool.m4:
case $host_os in
rhapsody* | darwin1.[[012]])
_lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
darwin1.*)
_lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined
${wl}suppress' ;;
darwin*) # darwin 5.x on
# if running on 10.5 or later, the deployment target defaults
# to the OS version, if on x86, and 10.4, the deployment
# target defaults to 10.4. Don't you love it?
case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
_lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
10.[[012]]*)
_lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined
${wl}suppress' ;;
10.*)
_lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
esac
;;
esac
I see that the -flat_namespace is only passed for 10.0, 10.1, and
10.2. Why is this? Are there adverse effects to using a flat namespace
on more recent OS X versions?
Cheers
Adam
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