X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Facl.m4;h=f02f69d22ac14c14e572e4464e3dc62602c187f1;hb=2d49283816a71d5451b43c7c9d1c80308c3aef73;hp=de76616fc4f7be8b8bb5f27ae7d8cdc80719b2c4;hpb=ff84d0d57ac533cbe622bde0543bac509a49daaa;p=gnulib.git diff --git a/m4/acl.m4 b/m4/acl.m4 index de76616fc..f02f69d22 100644 --- a/m4/acl.m4 +++ b/m4/acl.m4 @@ -1,7 +1,7 @@ # acl.m4 - check for access control list (ACL) primitives -# serial 6 +# serial 17 -# Copyright (C) 2002, 2004-2008 Free Software Foundation, Inc. +# Copyright (C) 2002, 2004-2014 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. @@ -14,82 +14,155 @@ AC_DEFUN([gl_FUNC_ACL], AS_HELP_STRING([--disable-acl], [do not support ACLs]), , [enable_acl=auto]) + AC_CHECK_FUNCS_ONCE([fchmod]) LIB_ACL= use_acl=0 - AC_REQUIRE([AC_C_INLINE]) if test "x$enable_acl" != "xno"; then - dnl Prerequisites of lib/acl.c. - AC_CHECK_HEADERS(sys/acl.h) + dnl On all platforms, the ACL related API is declared in . + AC_CHECK_HEADERS([sys/acl.h]) if test $ac_cv_header_sys_acl_h = yes; then ac_save_LIBS=$LIBS - AC_CHECK_FUNCS([acl]) - use_acl=1 - AC_SEARCH_LIBS([acl_trivial], [sec], - [test "$ac_cv_search_acl_trivial" = "none required" || - LIB_ACL=$ac_cv_search_acl_trivial - AC_CHECK_FUNCS([acl_trivial])], - [AC_CHECK_FUNCS([acl_trivial]) - if test $ac_cv_func_acl_trivial != yes; then - dnl -lacl is needed on Linux, -lpacl is needed on OSF/1. - AC_SEARCH_LIBS([acl_get_file], [acl pacl], - [test "$ac_cv_search_acl_get_file" = "none required" || - LIB_ACL=$ac_cv_search_acl_get_file - AC_CHECK_FUNCS( - [acl_get_file acl_get_fd acl_set_file acl_set_fd \ - acl_free acl_from_mode acl_from_text \ - acl_delete_def_file acl_extended_file \ - acl_delete_fd_np acl_delete_file_np \ - acl_copy_ext_native acl_create_entry_np \ - acl_to_short_text acl_free_text]) - if test $ac_cv_func_acl_get_file = yes; then - # If the acl_get_file bug is detected, disable all ACL support. - gl_ACL_GET_FILE( , [use_acl=0]) - fi - if test $use_acl = 1; then - AC_CHECK_HEADERS([acl/libacl.h]) - if test $ac_cv_func_acl_get_file = yes && - test $ac_cv_func_acl_free = yes; then - AC_REPLACE_FUNCS([acl_entries]) - fi - else - LIB_ACL= - fi]) - fi]) + + dnl Test for POSIX-draft-like API (Linux, FreeBSD, Mac OS X, IRIX, Tru64). + dnl -lacl is needed on Linux, -lpacl is needed on OSF/1. + if test $use_acl = 0; then + AC_SEARCH_LIBS([acl_get_file], [acl pacl], + [if test "$ac_cv_search_acl_get_file" != "none required"; then + LIB_ACL=$ac_cv_search_acl_get_file + fi + AC_CHECK_FUNCS( + [acl_get_file acl_get_fd acl_set_file acl_set_fd \ + acl_free acl_from_mode acl_from_text \ + acl_delete_def_file acl_extended_file \ + acl_delete_fd_np acl_delete_file_np \ + acl_copy_ext_native acl_create_entry_np \ + acl_to_short_text acl_free_text]) + # If the acl_get_file bug is detected, don't enable the ACL support. + gl_ACL_GET_FILE([use_acl=1], []) + if test $use_acl = 1; then + dnl On Linux, additional API is declared in . + AC_CHECK_HEADERS([acl/libacl.h]) + AC_REPLACE_FUNCS([acl_entries]) + AC_CACHE_CHECK([for ACL_FIRST_ENTRY], + [gl_cv_acl_ACL_FIRST_ENTRY], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( +[[#include +#include +int type = ACL_FIRST_ENTRY;]])], + [gl_cv_acl_ACL_FIRST_ENTRY=yes], + [gl_cv_acl_ACL_FIRST_ENTRY=no])]) + if test $gl_cv_acl_ACL_FIRST_ENTRY = yes; then + AC_DEFINE([HAVE_ACL_FIRST_ENTRY], [1], + [Define to 1 if the constant ACL_FIRST_ENTRY exists.]) + fi + dnl On Mac OS X, other types of ACLs are supported. + AC_CACHE_CHECK([for ACL_TYPE_EXTENDED], + [gl_cv_acl_ACL_TYPE_EXTENDED], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( +[[#include +#include +int type = ACL_TYPE_EXTENDED;]])], + [gl_cv_acl_ACL_TYPE_EXTENDED=yes], + [gl_cv_acl_ACL_TYPE_EXTENDED=no])]) + if test $gl_cv_acl_ACL_TYPE_EXTENDED = yes; then + AC_DEFINE([HAVE_ACL_TYPE_EXTENDED], [1], + [Define to 1 if the ACL type ACL_TYPE_EXTENDED exists.]) + fi + else + LIB_ACL= + fi + ]) + fi + + dnl Test for Solaris API (Solaris, Cygwin). + if test $use_acl = 0; then + AC_CHECK_FUNCS([facl]) + if test $ac_cv_func_facl = yes; then + AC_SEARCH_LIBS([acl_trivial], [sec], + [if test "$ac_cv_search_acl_trivial" != "none required"; then + LIB_ACL=$ac_cv_search_acl_trivial + fi + ]) + AC_CHECK_FUNCS([acl_trivial]) + use_acl=1 + fi + fi + + dnl Test for HP-UX API. + if test $use_acl = 0; then + AC_CHECK_FUNCS([getacl]) + if test $ac_cv_func_getacl = yes; then + use_acl=1 + fi + dnl Test for HP-UX 11.11 API. + AC_CHECK_HEADERS([aclv.h], [], [], [#include ]) + fi + + dnl Test for AIX API (AIX 5.3 or newer). + if test $use_acl = 0; then + AC_CHECK_FUNCS([aclx_get]) + if test $ac_cv_func_aclx_get = yes; then + use_acl=1 + fi + fi + + dnl Test for older AIX API. + if test $use_acl = 0 || test "$ac_cv_func_aclx_get" = yes; then + AC_CHECK_FUNCS([statacl]) + if test $ac_cv_func_statacl = yes; then + use_acl=1 + fi + fi + + dnl Test for NonStop Kernel API. + if test $use_acl = 0; then + AC_CHECK_FUNCS([aclsort]) + if test $ac_cv_func_aclsort = yes; then + use_acl=1 + fi + fi + LIBS=$ac_save_LIBS fi if test "x$enable_acl$use_acl" = "xyes0"; then AC_MSG_ERROR([ACLs enabled but support not detected]) + elif test "x$enable_acl$use_acl" = "xauto0"; then + AC_MSG_WARN([libacl development library was not found or not usable.]) + AC_MSG_WARN([AC_PACKAGE_NAME will be built without ACL support.]) fi fi AC_SUBST([LIB_ACL]) AC_DEFINE_UNQUOTED([USE_ACL], [$use_acl], [Define to nonzero if you want access control list support.]) - - # This is for backwards compatibility; remove this by the end of 2007. - LIB_ACL_TRIVIAL= - AC_SUBST([LIB_ACL_TRIVIAL]) + USE_ACL=$use_acl + AC_SUBST([USE_ACL]) ]) # gl_ACL_GET_FILE(IF-WORKS, IF-NOT) # ------------------------------------- -# If `acl_get_file' works (does not have a particular bug), +# If 'acl_get_file' works (does not have a particular bug), # run IF-WORKS, otherwise, IF-NOT. -# This tests for a Darwin 8.7.0 bug, whereby acl_get_file returns NULL, -# but sets errno = ENOENT for an existing file or directory. +# When building natively, test for a Darwin 8.7.0 bug, whereby acl_get_file +# returns NULL, but sets errno = ENOENT for an existing file or directory. +# When cross-compiling, assume that this old bug no longer applies. AC_DEFUN([gl_ACL_GET_FILE], [ - AC_CACHE_CHECK([for working acl_get_file], gl_cv_func_working_acl_get_file, - [AC_RUN_IFELSE( + AC_CACHE_CHECK([for working acl_get_file], [gl_cv_func_working_acl_get_file], + [gl_cv_func_working_acl_get_file=no + AC_LINK_IFELSE( [AC_LANG_PROGRAM( - [[#include - #include - #include - ]], - [[return !! (!acl_get_file (".", ACL_TYPE_ACCESS) - && errno == ENOENT);]])], - [gl_cv_func_working_acl_get_file=yes], - [gl_cv_func_working_acl_get_file=no], - [gl_cv_func_working_acl_get_file=cross-compiling])]) - - AS_IF([test $gl_cv_func_working_acl_get_file = yes], [$1], [$2]) + [[#include + #include + #include + ]], + [[if (!acl_get_file (".", ACL_TYPE_ACCESS) && errno == ENOENT) + return 1; + return 0; + ]])], + [if test $cross_compiling = yes; then + gl_cv_func_working_acl_get_file="guessing yes" + elif ./conftest$ac_exeext; then + gl_cv_func_working_acl_get_file=yes + fi])]) + AS_IF([test "$gl_cv_func_working_acl_get_file" != no], [$1], [$2]) ])