| # unistd_h.m4 serial 2 | |
| dnl Copyright (C) 2006 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. | |
| dnl Written by Simon Josefsson | |
| AC_DEFUN([gl_HEADER_UNISTD], | |
| [ | |
| dnl Prerequisites of lib/unistd.h. | |
| AC_CHECK_HEADERS([unistd.h], [ | |
| UNISTD_H='' | |
| ], [ | |
| UNISTD_H='unistd.h' | |
| ]) | |
| AC_SUBST(UNISTD_H) | |
| ]) |