diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/labels-as-values.m4 | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/m4/labels-as-values.m4 b/m4/labels-as-values.m4 index 3cf7320bd..e01768f00 100644 --- a/m4/labels-as-values.m4 +++ b/m4/labels-as-values.m4 @@ -1,19 +1,18 @@ dnl check for gcc's "labels as values" feature AC_DEFUN([AC_C_LABELS_AS_VALUES], [AC_CACHE_CHECK([labels as values], ac_cv_labels_as_values, -[AC_TRY_COMPILE([ +[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ int foo(int); -int foo(i) -int i; { +int foo(int i) { static void *label[] = { &&l1, &&l2 }; goto *label[i]; l1: return 1; l2: return 2; } -], -[int i;], -ac_cv_labels_as_values=yes, -ac_cv_labels_as_values=no)]) +]], +[[foo(1);]])], +[ac_cv_labels_as_values=yes], +[ac_cv_labels_as_values=no])]) if test "$ac_cv_labels_as_values" = yes; then AC_DEFINE([HAVE_LABELS_AS_VALUES], [], [Define if compiler supports gcc's "labels as values" (aka computed goto) |