[bpt/guile.git] / m4 / flock.m4

# flock.m4 serial 3
dnl Copyright (C) 2008-2014 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_FLOCK],
[
  AC_REQUIRE([gl_HEADER_SYS_FILE_H_DEFAULTS])
  AC_CHECK_FUNCS_ONCE([flock])
  if test $ac_cv_func_flock = no; then
    HAVE_FLOCK=0
  fi
])

dnl Prerequisites of lib/flock.c.
AC_DEFUN([gl_PREREQ_FLOCK],
[
  AC_CHECK_FUNCS_ONCE([fcntl])
  AC_CHECK_HEADERS_ONCE([unistd.h])

  dnl Do we have a POSIX fcntl lock implementation?
  AC_CHECK_MEMBERS([struct flock.l_type],[],[],[[#include <fcntl.h>]])
])
Commit	Line	Data
3d458a81	1	# flock.m4 serial 3
5e69ceb7	2	dnl Copyright (C) 2008-2014 Free Software Foundation, Inc.
f240aacb LC	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_FLOCK],
	8	[
	9	AC_REQUIRE([gl_HEADER_SYS_FILE_H_DEFAULTS])
	10	AC_CHECK_FUNCS_ONCE([flock])
	11	if test $ac_cv_func_flock = no; then
	12	HAVE_FLOCK=0
f240aacb LC	13	fi
	14	])
	15
	16	dnl Prerequisites of lib/flock.c.
	17	AC_DEFUN([gl_PREREQ_FLOCK],
	18	[
	19	AC_CHECK_FUNCS_ONCE([fcntl])
49114fd4	20	AC_CHECK_HEADERS_ONCE([unistd.h])
f240aacb LC	21
	22	dnl Do we have a POSIX fcntl lock implementation?
	23	AC_CHECK_MEMBERS([struct flock.l_type],[],[],[[#include <fcntl.h>]])
	24	])