gnulib: update to 776af40e0

[deliverable/binutils-gdb.git] / gnulib / import / m4 / warn-on-use.m4

diff --git a/gnulib/import/m4/warn-on-use.m4 b/gnulib/import/m4/warn-on-use.m4
index 5c8ee45092d7606117420a40b464633cc75ee672..04edfe85d4997bfa7cae88033ae3e54fffc00f58 100644 (file)
--- a/gnulib/import/m4/warn-on-use.m4
+++ b/gnulib/import/m4/warn-on-use.m4
@@ -1,5 +1,5 @@
-# warn-on-use.m4 serial 6
-dnl Copyright (C) 2010-2020 Free Software Foundation, Inc.
+# warn-on-use.m4 serial 9
+dnl Copyright (C) 2010-2021 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -30,17 +30,15 @@ AC_DEFUN([gl_WARN_ON_USE_PREPARE],
        [AH_TEMPLATE([HAVE_RAW_DECL_]AS_TR_CPP(m4_defn([gl_decl])),
          [Define to 1 if ]m4_defn([gl_decl])[ is declared even after
           undefining macros.])])dnl
-dnl FIXME: gl_Symbol must be used unquoted until we can assume
-dnl autoconf 2.64 or newer.
      for gl_func in m4_flatten([$2]); do
        AS_VAR_PUSHDEF([gl_Symbol], [gl_cv_have_raw_decl_$gl_func])dnl
        AC_CACHE_CHECK([whether $gl_func is declared without a macro],
-         gl_Symbol,
+         [gl_Symbol],
          [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$1],
-[@%:@undef $gl_func
-  (void) $gl_func;])],
-           [AS_VAR_SET(gl_Symbol, [yes])], [AS_VAR_SET(gl_Symbol, [no])])])
-       AS_VAR_IF(gl_Symbol, [yes],
+[[#undef $gl_func
+  (void) $gl_func;]])],
+           [AS_VAR_SET([gl_Symbol], [yes])], [AS_VAR_SET([gl_Symbol], [no])])])
+       AS_VAR_IF([gl_Symbol], [yes],
          [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_RAW_DECL_$gl_func]), [1])
           dnl shortcut - if the raw declaration exists, then set a cache
           dnl variable to allow skipping any later AC_CHECK_DECL efforts