Use $PATH_SEPARATOR like the rest of the autoconf code, instead of

hardwiring IFS=: when searching paths.

config/programs.m4

-# $PostgreSQL: pgsql/config/programs.m4,v 1.14 2004/05/19 22:12:30 momjian Exp $
+# $PostgreSQL: pgsql/config/programs.m4,v 1.15 2004/09/02 15:39:55 tgl Exp $
 
 
 # PGAC_PATH_FLEX
@@ -14,8 +14,9 @@ if test -n "$FLEX"; then
   pgac_cv_path_flex=$FLEX
 else
   pgac_save_IFS=$IFS
-  IFS=:
+  IFS=$PATH_SEPARATOR
   for pgac_dir in $PATH; do
+    IFS=$pgac_save_IFS
     if test -z "$pgac_dir" || test x"$pgac_dir" = x"."; then
       pgac_dir=`pwd`
     fi
@@ -37,7 +38,6 @@ else
       fi
     done
   done
-  IFS=$pgac_save_IFS
   rm -f conftest.l
   : ${pgac_cv_path_flex=no}
 fi

configure.in

 dnl Process this file with autoconf to produce a configure script.
-dnl $PostgreSQL: pgsql/configure.in,v 1.374 2004/08/31 04:08:33 pgsql Exp $
+dnl $PostgreSQL: pgsql/configure.in,v 1.375 2004/09/02 15:39:56 tgl Exp $
 dnl
 dnl Developers, please strive to achieve this order:
 dnl
@@ -326,7 +326,7 @@ PGAC_ARG_BOOL(enable, cassert, no, [  --enable-cassert        enable assertion c
 # Include directories
 #
 ac_save_IFS=$IFS
-IFS="${IFS}:"
+IFS="${IFS}${PATH_SEPARATOR}"
 # SRCH_INC comes from the template file
 for dir in $with_includes $SRCH_INC; do
   if test -d "$dir"; then
@@ -343,7 +343,7 @@ AC_SUBST(INCLUDES)
 # Library directories
 #
 ac_save_IFS=$IFS
-IFS="${IFS}:"
+IFS="${IFS}${PATH_SEPARATOR}"
 # LIBRARY_DIRS comes from command line, SRCH_LIB from template file.
 for dir in $LIBRARY_DIRS $SRCH_LIB; do
   if test -d "$dir"; then