diff options
Diffstat (limited to 'm4/jm-winsz1.m4')
-rw-r--r-- | m4/jm-winsz1.m4 | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/m4/jm-winsz1.m4 b/m4/jm-winsz1.m4 new file mode 100644 index 0000000..52653b7 --- /dev/null +++ b/m4/jm-winsz1.m4 @@ -0,0 +1,47 @@ +#serial 9 + +# Copyright (C) 1996, 1999, 2001, 2002, 2004, 2006 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +dnl From Jim Meyering and Paul Eggert. +AC_DEFUN([gl_HEADER_TIOCGWINSZ_IN_TERMIOS_H], +[AC_REQUIRE([AC_SYS_POSIX_TERMIOS]) + AC_CACHE_CHECK([whether use of TIOCGWINSZ requires termios.h], + jm_cv_sys_tiocgwinsz_needs_termios_h, + [jm_cv_sys_tiocgwinsz_needs_termios_h=no + + if test $ac_cv_sys_posix_termios = yes; then + AC_EGREP_CPP([yes], + [#include <sys/types.h> +# include <termios.h> +# ifdef TIOCGWINSZ + yes +# endif + ], jm_cv_sys_tiocgwinsz_needs_termios_h=yes) + fi + ]) +]) + +AC_DEFUN([gl_WINSIZE_IN_PTEM], + [AC_REQUIRE([AC_SYS_POSIX_TERMIOS]) + AC_CACHE_CHECK([whether use of struct winsize requires sys/ptem.h], + jm_cv_sys_struct_winsize_needs_sys_ptem_h, + [jm_cv_sys_struct_winsize_needs_sys_ptem_h=yes + if test $ac_cv_sys_posix_termios = yes; then + AC_TRY_COMPILE([#include <termios.h>], + [struct winsize x; + if (sizeof x > 0) return 0;], + [jm_cv_sys_struct_winsize_needs_sys_ptem_h=no]) + fi + if test $jm_cv_sys_struct_winsize_needs_sys_ptem_h = yes; then + AC_TRY_COMPILE([#include <sys/ptem.h>], + [struct winsize x; + if (sizeof x > 0) return 0;], + [], [jm_cv_sys_struct_winsize_needs_sys_ptem_h=no]) + fi]) + if test $jm_cv_sys_struct_winsize_needs_sys_ptem_h = yes; then + AC_DEFINE([WINSIZE_IN_PTEM], 1, + [Define if sys/ptem.h is required for struct winsize.]) + fi]) |