# SysV IPC is an optional Cygwin package
-$self->{LIBS} = ['-lcygipc']
+#
+# Starting with cygwin 1.5.7, cygipc is deprecated in favor of
+# cygserver (which requires no extra libs).
+# Uncomment if for some reason you need to get this to work with cygipc.
+#$self->{LIBS} = ['-lcygipc']
libswanted=`echo " $libswanted " | sed -e 's/ c / /g'`
# - eliminate -lm, symlink to libcygwin.a
libswanted=`echo " $libswanted " | sed -e 's/ m / /g'`
+# - eliminate -lutil, symbols are all in libcygwin.a
+libswanted=`echo " $libswanted " | sed -e 's/ util / /g'`
# - add libgdbm_compat $libswanted
# - libcygipc doesn't work much at all with
# the Perl SysV IPC tests so not adding it --jhi 2003-08-09
+# (with cygwin 1.5.7, cygipc is deprecated in favor of the builtin cygserver)
libswanted="$libswanted gdbm_compat"
test -z "$optimize" && optimize='-O2'
ccflags="$ccflags -DPERL_USE_SAFE_PUTENV"
cccdlflags=' '
ld='ld2'
+case "$osvers" in
+
+# Configure gets these wrong if the IPC server isn't yet running:
+# only use for 1.5.7 and onwards
+[2-9]*|1.[6-9]*|1.[1-5][0-9]*|1.5.[7-9]*|1.5.[1-6][0-9]*)
+ d_semctl_semid_ds='define'
+ d_semctl_semun='define'
+ ;;
+esac;
+
# Win9x problem with non-blocking read from a closed pipe
d_eofnblk='define'