Miles Bader <[email protected]> writes:
> 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_COMPILE_IFELSE(AC_LANG_SOURCE([int x;]), [opt_ok=yes], [opt_ok=no])
[...]
> 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...
You're missing a level of quoting. That should be:
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int x;])], [opt_ok=yes], [opt_ok=no])
--
Russ Allbery ([email protected]) <http://www.eyrie.org/~eagle/>
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