Only use termcap xor [n]curses, depending on what readline needs. Solaris

has problems when linking with both.

Author: petere

config/programs.m4

@@ -1,4 +1,4 @@
-# $Header: /cvsroot/pgsql/config/programs.m4,v 1.2 2000/10/26 16:28:00 petere Exp $
+# $Header: /cvsroot/pgsql/config/programs.m4,v 1.3 2001/02/06 19:20:16 petere Exp $
 
 
 # PGAC_PATH_FLEX
@@ -70,3 +70,35 @@ fi
 AC_SUBST(FLEX)
 AC_SUBST(FLEXFLAGS)
 ])# PGAC_PATH_FLEX
+
+
+
+# PGAC_CHECK_READLINE
+# -------------------
+# Check for the readline library and dependent libraries, either
+# termcap or curses.  Also try libedit, since NetBSD's is compatible.
+# Add the required flags to LIBS, define HAVE_LIBREADLINE.
+
+AC_DEFUN([PGAC_CHECK_READLINE],
+[AC_MSG_CHECKING([for readline])
+
+AC_CACHE_VAL([pgac_cv_check_readline],
+[pgac_cv_check_readline=no
+for pgac_lib in "" " -ltermcap" " -lncurses" " -lcurses" ; do
+  for pgac_rllib in -lreadline -ledit ; do
+    pgac_save_LIBS=$LIBS
+    LIBS="${pgac_rllib}${pgac_lib} $LIBS"
+    AC_TRY_LINK_FUNC([readline], [pgac_cv_check_readline="${pgac_rllib}${pgac_lib}"; break 2])
+    LIBS=$pgac_save_LIBS
+  done
+done
+LIBS=$pgac_save_LIBS
+])[]dnl AC_CACHE_VAL
+
+if test "$pgac_cv_check_readline" != no ; then
+  AC_DEFINE(HAVE_LIBREADLINE)
+  LIBS="$pgac_cv_check_readline $LIBS"
+  AC_MSG_RESULT([yes ($pgac_cv_check_readline)])
+else
+  AC_MSG_RESULT(no)
+fi])# PGAC_CHECK_READLINE