diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 51 |
1 files changed, 27 insertions, 24 deletions
diff --git a/configure.ac b/configure.ac index 2bcbedf..1ae79cc 100644 --- a/configure.ac +++ b/configure.ac @@ -4239,30 +4239,6 @@ then wide chars that would be converted.]) fi -AC_MSG_CHECKING(whether $CC supports computed gotos) -AC_CACHE_VAL(ac_cv_computed_gotos, -AC_RUN_IFELSE([AC_LANG_SOURCE([[[ -int main(int argc, char **argv) -{ - static void *targets[1] = { &&LABEL1 }; - goto LABEL2; -LABEL1: - return 0; -LABEL2: - goto *targets[0]; - return 1; -} -]]])], -[ac_cv_computed_gotos=yes], -[ac_cv_computed_gotos=no], -[ac_cv_computed_gotos=no])) -AC_MSG_RESULT($ac_cv_computed_gotos) -if test "$ac_cv_computed_gotos" = yes -then - AC_DEFINE(HAVE_COMPUTED_GOTOS, 1, - [Define if the C compiler supports computed gotos.]) -fi - # Check for --with-computed-gotos AC_MSG_CHECKING(for --with-computed-gotos) AC_ARG_WITH(computed-gotos, @@ -4284,6 +4260,33 @@ fi ], [AC_MSG_RESULT(no value specified)]) +AC_MSG_CHECKING(whether $CC supports computed gotos) +AC_CACHE_VAL(ac_cv_computed_gotos, +AC_RUN_IFELSE([AC_LANG_SOURCE([[[ +int main(int argc, char **argv) +{ + static void *targets[1] = { &&LABEL1 }; + goto LABEL2; +LABEL1: + return 0; +LABEL2: + goto *targets[0]; + return 1; +} +]]])], +[ac_cv_computed_gotos=yes], +[ac_cv_computed_gotos=no], +[if test "${with_computed_gotos+set}" = set; then + ac_cv_computed_gotos="$with_computed_gotos -- configured --with(out)-computed-gotos" + else + ac_cv_computed_gotos=no + fi])) +AC_MSG_RESULT($ac_cv_computed_gotos) +case "$ac_cv_computed_gotos" in yes*) + AC_DEFINE(HAVE_COMPUTED_GOTOS, 1, + [Define if the C compiler supports computed gotos.]) +esac + case $ac_sys_system in AIX*) AC_DEFINE(HAVE_BROKEN_PIPE_BUF, 1, [Define if the system reports an invalid PIPE_BUF value.]) ;; |