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Diffstat (limited to 'm4/func.m4')
-rw-r--r-- | m4/func.m4 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/m4/func.m4 b/m4/func.m4 new file mode 100644 index 000000000..6ec0eab0e --- /dev/null +++ b/m4/func.m4 @@ -0,0 +1,20 @@ +# func.m4 serial 2 +dnl Copyright (C) 2008-2023 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. + +# Written by Simon Josefsson + +AC_DEFUN([gl_FUNC], +[ + AC_CACHE_CHECK([whether __func__ is available], [gl_cv_var_func], + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[]], [[const char *str = __func__;]])], + [gl_cv_var_func=yes], + [gl_cv_var_func=no])) + if test "$gl_cv_var_func" != yes; then + AC_DEFINE([__func__], ["<unknown function>"], + [Define as a replacement for the ISO C99 __func__ variable.]) + fi +]) |