diff options
Diffstat (limited to 'm4/macros/check_libwrap_severity.m4')
| -rw-r--r-- | m4/macros/check_libwrap_severity.m4 | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/m4/macros/check_libwrap_severity.m4 b/m4/macros/check_libwrap_severity.m4 new file mode 100644 index 000000000000..955ba55ab9d0 --- /dev/null +++ b/m4/macros/check_libwrap_severity.m4 @@ -0,0 +1,41 @@ +dnl ###################################################################### +dnl check if libwrap (if exists), requires the caller to define the variables +dnl deny_severity and allow_severity. +AC_DEFUN([AMU_CHECK_LIBWRAP_SEVERITY], +[ +AC_CACHE_CHECK([if libwrap wants caller to define allow_severity and deny_severity], ac_cv_need_libwrap_severity_vars, [ +# save, then reset $LIBS back to original value +SAVEDLIBS="$LIBS" +LIBS="$LIBS -lwrap" +# run program one without defining our own severity variables +AC_TRY_RUN( +[ +int main() +{ + exit(0); +} +],[ac_tmp_val1="yes"],[ac_tmp_val1="no"]) +# run program two with defining our own severity variables +AC_TRY_RUN( +[ +int deny_severity, allow_severity, rfc931_timeout; +int main() +{ + exit(0); +} +],[ac_tmp_val2="yes"],[ac_tmp_val2="no"]) +# restore original value of $LIBS +LIBS="$SAVEDLIBS" +# now decide what to do +if test "$ac_tmp_val1" = "no" && test "$ac_tmp_val2" = "yes" +then + ac_cv_need_libwrap_severity_vars="yes" +else + ac_cv_need_libwrap_severity_vars="no" +fi +]) +if test "$ac_cv_need_libwrap_severity_vars" = "yes" +then + AC_DEFINE(NEED_LIBWRAP_SEVERITY_VARIABLES) +fi +]) |