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dnl From Jim Meyering.
#serial 1
AC_DEFUN(jm_HEADER_TIOCGWINSZ_IN_TERMIOS_H,
[AC_REQUIRE([AM_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 $am_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
])
])
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