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Diffstat (limited to 'app/luit/acinclude.m4')
| -rw-r--r-- | app/luit/acinclude.m4 | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/app/luit/acinclude.m4 b/app/luit/acinclude.m4 new file mode 100644 index 000000000..7e579f5b5 --- /dev/null +++ b/app/luit/acinclude.m4 @@ -0,0 +1,116 @@ +dnl --------------------------------------------------------------------------- +dnl +dnl Copyright 2006-2009,2010 by Thomas E. Dickey +dnl +dnl All Rights Reserved +dnl +dnl Permission to use, copy, modify, and distribute this software and its +dnl documentation for any purpose and without fee is hereby granted, +dnl provided that the above copyright notice appear in all copies and that +dnl both that copyright notice and this permission notice appear in +dnl supporting documentation, and that the name of the above listed +dnl copyright holder(s) not be used in advertising or publicity pertaining +dnl to distribution of the software without specific, written prior +dnl permission. +dnl +dnl THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM ALL WARRANTIES WITH REGARD +dnl TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +dnl AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE +dnl LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +dnl WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +dnl ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +dnl OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +dnl +dnl --------------------------------------------------------------------------- + +dnl --------------------------------------------------------------------------- +dnl CF_FUNC_POLL version: 4 updated: 2006/12/16 12:33:30 +dnl ------------ +dnl See if the poll function really works. Some platforms have poll(), but +dnl it does not work for terminals or files. +AC_DEFUN([CF_FUNC_POLL],[ +AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[ +AC_TRY_RUN([ +#include <stdio.h> +#ifdef HAVE_POLL_H +#include <poll.h> +#else +#include <sys/poll.h> +#endif +int main() { + struct pollfd myfds; + int ret; + + myfds.fd = 0; + myfds.events = POLLIN; + + ret = poll(&myfds, 1, 100); + ${cf_cv_main_return:-return}(ret != 0); +}], + [cf_cv_working_poll=yes], + [cf_cv_working_poll=no], + [cf_cv_working_poll=unknown])]) +test "$cf_cv_working_poll" = "yes" && AC_DEFINE(HAVE_WORKING_POLL, 1, [poll() works]) +])dnl + +dnl --------------------------------------------------------------------------- +dnl CF_SIGWINCH version: 1 updated: 2006/04/02 16:41:09 +dnl ----------- +dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all +dnl programs need this test). +dnl +dnl This is really a MacOS X 10.4.3 workaround. Defining _POSIX_C_SOURCE +dnl forces SIGWINCH to be undefined (breaks xterm, ncurses). Oddly, the struct +dnl winsize declaration is left alone - we may revisit this if Apple choose to +dnl break that part of the interface as well. +AC_DEFUN([CF_SIGWINCH], +[ +AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[ + AC_TRY_COMPILE([ +#include <sys/types.h> +#include <sys/signal.h> +],[int x = SIGWINCH], + [cf_cv_define_sigwinch=yes], + [AC_TRY_COMPILE([ +#undef _XOPEN_SOURCE +#undef _POSIX_SOURCE +#undef _POSIX_C_SOURCE +#include <sys/types.h> +#include <sys/signal.h> +],[int x = SIGWINCH], + [cf_cv_define_sigwinch=maybe], + [cf_cv_define_sigwinch=no]) +]) +]) + +if test "$cf_cv_define_sigwinch" = maybe ; then +AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[ +cf_cv_fixup_sigwinch=unknown +cf_sigwinch=32 +while test $cf_sigwinch != 1 +do + AC_TRY_COMPILE([ +#undef _XOPEN_SOURCE +#undef _POSIX_SOURCE +#undef _POSIX_C_SOURCE +#include <sys/types.h> +#include <sys/signal.h> +],[ +#if SIGWINCH != $cf_sigwinch +make an error +#endif +int x = SIGWINCH], + [cf_cv_fixup_sigwinch=$cf_sigwinch + break]) + +cf_sigwinch=`expr $cf_sigwinch - 1` +done +]) + + if test "$cf_cv_fixup_sigwinch" != unknown ; then + CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch" + fi +fi +])dnl + + |