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# isc.sh
# Interactive Unix Versions 3 and 4.
# Compile perl entirely in posix mode.
# Andy Dougherty doughera@lafcol.lafayette.edu
# Wed Oct 5 15:57:37 EDT 1994
#
# Use Configure -Dcc=gcc to use gcc
#
# We don't want to explicitly mention -lc (since we're using POSIX mode.)
# We also don't want -lx (the Xenix compatability libraries.) The only
# thing that it seems to pick up is chsize(), which has been reported to
# not work. chsize() can also be implemented via fcntl() in perl (if you
# define -D_SYSV3). We'll leave in -lPW since it's harmless. Some
# extension might eventually need it for alloca, though perl doesn't use
# it.
set `echo X "$libswanted "| sed -e 's/ c / /' -e 's/ x / /'`
shift
libswanted="$*"
case "$cc" in
*gcc*) ccflags="$ccflags -posix"
ldflags="$ldflags -posix"
;;
*) ccflags="$ccflags -Xp -D_POSIX_SOURCE"
ldflags="$ldflags -Xp"
;;
esac
# You can also include -D_SYSV3 to pick up "traditionally visible"
# symbols hidden by name-space pollution rules. This raises some
# compilation "redefinition" warnings, but they appear harmless.
# ccflags="$ccflags -D_SYSV3"
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