1998-08-12 Roland McGrath <roland@baalperazim.frob.com>

	* aclocal.m4 (AC_PROG_CC_LOCAL): Renamed to hurd_PROG_CC.
	(AC_PROG_CC_WORKS_LOCAL): Renamed to hurd_PROG_CC_WORKS.
	* configure.in: Use hurd_PROG_CC instead of AC_PROG_CC_LOCAL.
	(AC_PREREQ): Require 2.12.
	(AC_CANONICAL_HOST): Give helpful error messages for likely cases of
	bogus host specs.
	(crypt check): Don't do AC_CHECK_FUNCS to get HAVE_CRYPT,
	just check for -lcrypt to set $LIBCRYPT.

1 files changed, 15 insertions, 14 deletions

diff --git a/configure.in b/configure.in
index 1dad5b58..64960998 100644
--- a/configure.in
+++ b/configure.in
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
-AC_REVISION([$Id: configure.in,v 1.13 1998/07/20 04:55:13 roland Exp $])
-AC_PREREQ(2.4)			dnl Minimum Autoconf version required.
+AC_REVISION([$Id: configure.in,v 1.14 1998/08/12 20:56:17 roland Exp $])
+AC_PREREQ(2.12)			dnl Minimum Autoconf version required.
 AC_INIT(hurd/hurd_types.h)	dnl A distinctive file to look for in srcdir.
 
 AC_PREFIX_DEFAULT()		dnl Default to empty prefix, not /usr/local.
@@ -8,14 +8,20 @@ AC_PREFIX_DEFAULT()		dnl Default to empty prefix, not /usr/local.
 AC_CANONICAL_HOST
 case "$host_os" in
 gnu*) ;;
-*) AC_MSG_ERROR([sorry, this is the gnu os, not $host_os]) ;;
+none) AC_MSG_ERROR([
+*** You must specify a host of $host_cpu-gnu or $host_cpu-$host_vendor-gnu
+*** to configure; you will need to use the same host specification
+*** to configure other packages for the GNU/Hurd system.]) ;;
+*) AC_MSG_ERROR([this is the gnu os, host cannot be $host_os
+*** Host configuration must be \`MACHINE-gnu' or \`MACHINE-VENDOR-gnu'.
+*** To cross-compile, you must specify both --host and --build;
+*** for example \`--build=$host --host=$host_cpu-gnu'.
+*** Run $0 --help for more information.]) ;;
 esac
 
 case "$host_cpu" in
-i[[3456]]86)
-	asm_syntax=i386
-	;;
-*) AC_MSG_ERROR([unspported CPU type]) ;;
+i?86) asm_syntax=i386 ;;
+*) AC_MSG_ERROR([unsupported CPU type]) ;;
 esac
 AC_SUBST(asm_syntax)
 
@@ -29,7 +35,7 @@ AC_PROG_INSTALL
 AC_CHECK_TOOL(CC, gcc)
 # That check handles cross-compilation well, but AC_PROG_CC tests for GCC
 # and sets default CFLAGS nicely for us, so do that too.
-AC_PROG_CC_LOCAL
+hurd_PROG_CC
 # Require GCC.
 if test x$GCC != xyes; then
   AC_MSG_ERROR([this code uses GNU C extensions, you must compile with GCC])
@@ -44,14 +50,9 @@ AC_CHECK_TOOL(MIG, mig)
 dnl Let these propagate from the environment.
 AC_SUBST(CFLAGS) AC_SUBST(CPPFLAGS) AC_SUBST(LDFLAGS)
 
-# See if there's a separate libcrypt (many systems put crypt there)
+# See if there's a separate libcrypt (many systems put crypt there).
 AC_CHECK_LIB(crypt, crypt, LIBCRYPT=-lcrypt)
 AC_SUBST(LIBCRYPT)
-# Look for the crypt function itself (in libcrypt if possible)
-_SAVE_LIBS="$LIBS"
-LIBS="$LIBCRYPT $LIBS"
-AC_CHECK_FUNCS(crypt)
-LIBS="$_SAVE_LIBS"
 
 if test -f ./$ac_unique_file; then
   # Configuring in source directory; don't create any Makefiles.