Recently I've started getting odd warnings from autoconf, and I'm not
sure how to shut them up... e.g., from the following "configure.ac" file:
AC_INIT([barf], [0.1], [Miles Bader <miles@xxxxxxx>])
AC_PROG_CXX
AC_LANG(C++)
AC_DEFUN([BARF_CHECK_CXX_FLAG], [
AC_LANG_ASSERT(C++)
_SAVED_CXXFLAGS="$CXXFLAGS"
OPT="$2"
CXXFLAGS="$CXXFLAGS $OPT"
case "$OPT" in *' '*) S=s;; *) S="";; esac
AC_MSG_CHECKING([whether C++ compiler accepts "$OPT" option$S])
AC_COMPILE_IFELSE(AC_LANG_SOURCE([int x;]), [opt_ok=yes], [opt_ok=no])
AC_MSG_RESULT([$opt_ok])
if test "$opt_ok" = yes; then
AC_SUBST([$1], ["$OPT"])
fi
CXXFLAGS="$_SAVED_CXXFLAGS"
])
BARF_CHECK_CXX_FLAG([BARF], "-march=native")
I get the following warnings from running "autoconf":
configure.ac:24: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body
../../lib/autoconf/lang.m4:194: AC_LANG_CONFTEST is expanded from...
../../lib/autoconf/general.m4:2591: _AC_COMPILE_IFELSE is expanded from...
../../lib/autoconf/general.m4:2607: AC_COMPILE_IFELSE is expanded from...
configure.ac:7: BARF_CHECK_CXX_FLAG is expanded from...
configure.ac:24: the top level
AFAICS, I _am_ using AC_LANG_SOURCE, so ... I dunno why it's
complaining...
Thanks,
-Miles
--
Non-combatant, n. A dead Quaker.
_______________________________________________
Autoconf mailing list
Autoconf@xxxxxxx
https://lists.gnu.org/mailman/listinfo/autoconf
