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

# flock.m4 serial 2
dnl Copyright (C) 2008-2011 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
    AC_LIBOBJ([flock])
    gl_PREREQ_FLOCK
  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
49114fd4 LC	1	# flock.m4 serial 2
49114fd4 LC	2	dnl Copyright (C) 2008-2011 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
	13	AC_LIBOBJ([flock])
	14	gl_PREREQ_FLOCK
	15	fi
	16	])
	17
	18	dnl Prerequisites of lib/flock.c.
	19	AC_DEFUN([gl_PREREQ_FLOCK],
	20	[
	21	AC_CHECK_FUNCS_ONCE([fcntl])
49114fd4	22	AC_CHECK_HEADERS_ONCE([unistd.h])
f240aacb LC	23
	24	dnl Do we have a POSIX fcntl lock implementation?
	25	AC_CHECK_MEMBERS([struct flock.l_type],[],[],[[#include <fcntl.h>]])
	26	])