2007-05-11  Stepan Kasal  <address@hidden>

	* lib/autoconf/functions.m4 (AC_CHECK_FUNCS): Assign $1 to
	shell variable ac_list, to allow for multiline parameter.
	* lib/autoconf/headers.m4 (AC_CHECK_HEADERS): Likewise.
	* tests/semantics.at (multiline AC_CHECK_FUNCS): New.
	(multiline AC_CHECK_HEADERS): New.
	(multiline AC_CHECK_FUNCS (backslash)): New.
	(multiline AC_CHECK_HEADERS (backslash)): New.

Index: lib/autoconf/functions.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autoconf/functions.m4,v
retrieving revision 1.119
diff -u -r1.119 functions.m4
--- lib/autoconf/functions.m4	22 Dec 2006 08:42:17 -0000	1.119
+++ lib/autoconf/functions.m4	11 May 2007 14:14:10 -0000
@@ -87,7 +87,8 @@
 # ---------------------------------------------------------------------
 AC_DEFUN([AC_CHECK_FUNCS],
 [_AH_CHECK_FUNCS([$1])dnl
-for ac_func in $1
+ac_list="$1"
+for ac_func in $ac_list
 do
 AC_CHECK_FUNC($ac_func,
 	      [AC_DEFINE_UNQUOTED([AS_TR_CPP([HAVE_$ac_func])]) $2],
Index: lib/autoconf/headers.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autoconf/headers.m4,v
retrieving revision 1.55
diff -u -r1.55 headers.m4
--- lib/autoconf/headers.m4	28 Nov 2006 00:26:45 -0000	1.55
+++ lib/autoconf/headers.m4	11 May 2007 14:14:11 -0000
@@ -194,7 +194,8 @@
 # ----------------------------------------------------------
 AC_DEFUN([AC_CHECK_HEADERS],
 [AH_CHECK_HEADERS([$1])dnl
-for ac_header in $1
+ac_list="$1"
+for ac_header in $ac_list
 do
 AC_CHECK_HEADER($ac_header,
 		[AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$ac_header)) $2],
Index: tests/semantics.at
===================================================================
RCS file: /cvsroot/autoconf/autoconf/tests/semantics.at,v
retrieving revision 1.61
diff -u -r1.61 semantics.at
--- tests/semantics.at	13 Apr 2007 07:52:58 -0000	1.61
+++ tests/semantics.at	11 May 2007 14:14:12 -0000
@@ -135,6 +135,46 @@
 ])])
 
 
+# multiline AC_CHECK_FUNCS
+# -------------------------
+# The new convenient syntax.
+#
+AT_SETUP([multiline AC_CHECK_FUNCS])
+AT_CONFIGURE_AC(
+[[AC_CHECK_FUNCS([
+	printf
+	autoconf_ftnirp
+  ])
+]])
+AT_CHECK_AUTOCONF([-W obsolete])
+AT_CHECK_AUTOHEADER
+AT_CHECK_CONFIGURE
+AT_CHECK_DEFINES(
+[/* #undef HAVE_AUTOCONF_FTNIRP */
+#define HAVE_PRINTF 1
+])
+AT_CLEANUP
+
+
+# multiline AC_CHECK_FUNCS (backslash)
+# ------------------------------------
+# The old way.
+#
+AT_SETUP([multiline AC_CHECK_FUNCS (backslash)])
+AT_CONFIGURE_AC(
+[[AC_CHECK_FUNCS([printf \
+		  autoconf_ftnirp])
+]])
+AT_CHECK_AUTOCONF([-W obsolete])
+AT_CHECK_AUTOHEADER
+AT_CHECK_CONFIGURE
+AT_CHECK_DEFINES(
+[/* #undef HAVE_AUTOCONF_FTNIRP */
+#define HAVE_PRINTF 1
+])
+AT_CLEANUP
+
+
 # AC_REPLACE_FUNCS
 # ----------------
 # Check that it performs the correct actions: autoconf_ftnirp.c must
@@ -238,6 +278,46 @@
 AT_CLEANUP([header1.h header2.h header3.h])
 
 
+# multiline AC_CHECK_HEADERS
+# ---------------------------
+# The new convenient syntax.
+#
+AT_SETUP([multiline AC_CHECK_HEADERS])
+AT_CONFIGURE_AC(
+[[AC_CHECK_HEADERS([
+	stdio.h
+	autoconf_io.h
+  ])
+]])
+AT_CHECK_AUTOCONF([-W obsolete])
+AT_CHECK_AUTOHEADER
+AT_CHECK_CONFIGURE
+AT_CHECK_DEFINES(
+[/* #undef HAVE_AUTOCONF_IO_H */
+#define HAVE_STDIO_H 1
+])
+AT_CLEANUP
+
+
+# multiline AC_CHECK_HEADERS (backslash)
+# --------------------------------------
+# The old way.
+#
+AT_SETUP([multiline AC_CHECK_HEADERS (backslash)])
+AT_CONFIGURE_AC(
+[[AC_CHECK_HEADERS([stdio.h \
+		    autoconf_io.h])
+]])
+AT_CHECK_AUTOCONF([-W obsolete])
+AT_CHECK_AUTOHEADER
+AT_CHECK_CONFIGURE
+AT_CHECK_DEFINES(
+[/* #undef HAVE_AUTOCONF_IO_H */
+#define HAVE_STDIO_H 1
+])
+AT_CLEANUP
+
+
 # AC_CHECK_MEMBERS
 # ----------------
 # Check that it performs the correct actions.