diff options
Diffstat (limited to 'gl/m4/unistd_h.m4')
| -rw-r--r-- | gl/m4/unistd_h.m4 | 71 |
1 files changed, 50 insertions, 21 deletions
diff --git a/gl/m4/unistd_h.m4 b/gl/m4/unistd_h.m4 index 9d499dfe..4b8857ca 100644 --- a/gl/m4/unistd_h.m4 +++ b/gl/m4/unistd_h.m4 @@ -1,32 +1,61 @@ -# unistd_h.m4 serial 3 -dnl Copyright (C) 2006 Free Software Foundation, Inc. +# unistd_h.m4 serial 10 +dnl Copyright (C) 2006-2007 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 +dnl Written by Simon Josefsson, Bruno Haible. -AC_DEFUN([gl_HEADER_UNISTD], +AC_DEFUN([gl_UNISTD_H], [ - AC_CHECK_HEADERS([unistd.h], [ - UNISTD_H='' - ], [ - UNISTD_H='unistd.h' - ]) - AC_SUBST(UNISTD_H) - dnl This module decides to build unistd.h if it is missing. - dnl The fchdir module decides to build unistd.h if fchdir() is missing. - dnl Therefore check for the prerequisites of lib/unistd.h always. - gl_PREREQ_UNISTD -]) + dnl Use AC_REQUIRE here, so that the default behavior below is expanded + dnl once only, before all statements that occur in other macros. + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + + gl_CHECK_NEXT_HEADERS([unistd.h]) -dnl Prerequisites of lib/unistd.h. -AC_DEFUN([gl_PREREQ_UNISTD], -[ AC_CHECK_HEADERS_ONCE([unistd.h]) if test $ac_cv_header_unistd_h = yes; then - gl_ABSOLUTE_HEADER([unistd.h]) - ABSOLUTE_UNISTD_H=\"$gl_cv_absolute_unistd_h\" + HAVE_UNISTD_H=1 + else + HAVE_UNISTD_H=0 fi - AC_SUBST([ABSOLUTE_UNISTD_H]) + AC_SUBST([HAVE_UNISTD_H]) +]) + +AC_DEFUN([gl_UNISTD_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 +]) + +AC_DEFUN([gl_UNISTD_H_DEFAULTS], +[ + GNULIB_CHOWN=0; AC_SUBST([GNULIB_CHOWN]) + GNULIB_DUP2=0; AC_SUBST([GNULIB_DUP2]) + GNULIB_FCHDIR=0; AC_SUBST([GNULIB_FCHDIR]) + GNULIB_FTRUNCATE=0; AC_SUBST([GNULIB_FTRUNCATE]) + GNULIB_GETCWD=0; AC_SUBST([GNULIB_GETCWD]) + GNULIB_GETLOGIN_R=0; AC_SUBST([GNULIB_GETLOGIN_R]) + GNULIB_GETPAGESIZE=0; AC_SUBST([GNULIB_GETPAGESIZE]) + GNULIB_LCHOWN=0; AC_SUBST([GNULIB_LCHOWN]) + GNULIB_LSEEK=0; AC_SUBST([GNULIB_LSEEK]) + GNULIB_READLINK=0; AC_SUBST([GNULIB_READLINK]) + GNULIB_SLEEP=0; AC_SUBST([GNULIB_SLEEP]) + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_DUP2=1; AC_SUBST([HAVE_DUP2]) + HAVE_FTRUNCATE=1; AC_SUBST([HAVE_FTRUNCATE]) + HAVE_GETPAGESIZE=1; AC_SUBST([HAVE_GETPAGESIZE]) + HAVE_READLINK=1; AC_SUBST([HAVE_READLINK]) + HAVE_SLEEP=1; AC_SUBST([HAVE_SLEEP]) + HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R]) + HAVE_OS_H=0; AC_SUBST([HAVE_OS_H]) + HAVE_SYS_PARAM_H=0; AC_SUBST([HAVE_SYS_PARAM_H]) + REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN]) + REPLACE_FCHDIR=0; AC_SUBST([REPLACE_FCHDIR]) + REPLACE_GETCWD=0; AC_SUBST([REPLACE_GETCWD]) + REPLACE_GETPAGESIZE=0; AC_SUBST([REPLACE_GETPAGESIZE]) + REPLACE_LCHOWN=0; AC_SUBST([REPLACE_LCHOWN]) + REPLACE_LSEEK=0; AC_SUBST([REPLACE_LSEEK]) ]) |