[newlib-cygwin] libgloss: fix AC_LANG_SOURCE warnings w/newer autoconf

[newlib-cygwin] libgloss: fix AC_LANG_SOURCE warnings w/newer autoconf

[Michael Frysinger]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=63c1f29a1d652aa5ace2bf2531d9e2fe35edf21d

commit 63c1f29a1d652aa5ace2bf2531d9e2fe35edf21d
Author: Mike Frysinger <vapier@gentoo.org>
Date:   Wed Sep 15 00:18:55 2021 -0400

    libgloss: fix AC_LANG_SOURCE warnings w/newer autoconf
    
    When running autoconf-2.69 in here, we get:
    configure.ac:57: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body
    ../../lib/autoconf/lang.m4:193: AC_LANG_CONFTEST is expanded from...
    ../../lib/autoconf/general.m4:2503: _AC_PREPROC_IFELSE is expanded from...
    ../../lib/autoconf/general.m4:2518: AC_PREPROC_IFELSE is expanded from...
    configure.ac:57: the top level
    configure.ac:61: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body
    ../../lib/autoconf/lang.m4:193: AC_LANG_CONFTEST is expanded from...
    ../../lib/autoconf/general.m4:2503: _AC_PREPROC_IFELSE is expanded from...
    ../../lib/autoconf/general.m4:2518: AC_PREPROC_IFELSE is expanded from...
    configure.ac:61: the top level
    
    Add AC_LANG_PROGRAM wrappings to fix these.

Diff:
---
 libgloss/csky/configure.ac | 8 ++++----
 libgloss/m68k/configure.ac | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/libgloss/csky/configure.ac b/libgloss/csky/configure.ac
index e24bd7d13..4b0baaeee 100644
--- a/libgloss/csky/configure.ac
+++ b/libgloss/csky/configure.ac
@@ -54,13 +54,13 @@ dnl an executable or not.
 dnl
 saved_LDFLAGS="$LDFLAGS"
 LDFLAGS="-nostdlib -e main"
-AC_PREPROC_IFELSE([#ifndef __mcoldfire__
+AC_PREPROC_IFELSE([AC_LANG_PROGRAM([#ifndef __mcoldfire__
 		#error we are not coldfire
-		#endif],
+		#endif])],
 	       DO="cf",)
-AC_PREPROC_IFELSE([#ifndef __mfido__
+AC_PREPROC_IFELSE([AC_LANG_PROGRAM([#ifndef __mfido__
 		#error we are not fido
-		#endif],
+		#endif])],
 	       DO="fido",)
 LDFLAGS=$saved_LDFLAGS
 AC_MSG_RESULT($DO)
diff --git a/libgloss/m68k/configure.ac b/libgloss/m68k/configure.ac
index 0ec586091..34ea86a73 100644
--- a/libgloss/m68k/configure.ac
+++ b/libgloss/m68k/configure.ac
@@ -54,13 +54,13 @@ dnl an executable or not.
 dnl
 saved_LDFLAGS="$LDFLAGS"
 LDFLAGS="-nostdlib -e main"
-AC_PREPROC_IFELSE([#ifndef __mcoldfire__
+AC_PREPROC_IFELSE([AC_LANG_PROGRAM([#ifndef __mcoldfire__
 		#error we are not coldfire
-		#endif],
+		#endif])],
 	       DO="cf",)
-AC_PREPROC_IFELSE([#ifndef __mfido__
+AC_PREPROC_IFELSE([AC_LANG_PROGRAM([#ifndef __mfido__
 		#error we are not fido
-		#endif],
+		#endif])],
 	       DO="fido",)
 LDFLAGS=$saved_LDFLAGS
 AC_MSG_RESULT($DO)