[bpt/emacs.git] / m4 / pipe2.m4

# pipe2.m4 serial 2
dnl Copyright (C) 2009-2014 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

AC_DEFUN([gl_FUNC_PIPE2],
[
  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])

  dnl Persuade glibc <unistd.h> to declare pipe2().
  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])

  AC_CHECK_FUNCS_ONCE([pipe2])
  if test $ac_cv_func_pipe2 != yes; then
    HAVE_PIPE2=0
  fi
])
Commit	Line	Data
067428c1	1	# pipe2.m4 serial 2
ba318903	2	dnl Copyright (C) 2009-2014 Free Software Foundation, Inc.
067428c1 PE	3	dnl This file is free software; the Free Software Foundation
	4	dnl gives unlimited permission to copy and/or distribute it,
	5	dnl with or without modifications, as long as this notice is preserved.
	6
	7	AC_DEFUN([gl_FUNC_PIPE2],
	8	[
	9	AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
	10
	11	dnl Persuade glibc <unistd.h> to declare pipe2().
	12	AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
	13
	14	AC_CHECK_FUNCS_ONCE([pipe2])
	15	if test $ac_cv_func_pipe2 != yes; then
	16	HAVE_PIPE2=0
	17	fi
	18	])