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[SCM] GNU Autoconf source repository branch, master, updated. v2.63-117-
From: |
Paolo Bonzini |
Subject: |
[SCM] GNU Autoconf source repository branch, master, updated. v2.63-117-g37dd5e9 |
Date: |
Tue, 28 Oct 2008 12:25:21 +0000 |
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from d783e517644aa68e36b34335340d8629114d1f97 (commit)
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- Log -----------------------------------------------------------------
commit 37dd5e9c4927d74ce720f7b012b03001823331bf
Author: Paolo Bonzini <address@hidden>
Date: Mon Oct 20 15:35:47 2008 +0200
use a shell function for AC_CHECK_MEMBER
* lib/autoconf/types.m4 (_AC_CHECK_MEMBER_BODY): New.
(AC_CHECK_MEMBER): Define and use a shell function.
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 5 ++++
lib/autoconf/types.m4 | 52 +++++++++++++++++++++++++++++-------------------
2 files changed, 36 insertions(+), 21 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 9a6a5f7..7f66556 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-10-28 Paolo Bonzini <address@hidden>
+
+ * lib/autoconf/types.m4 (_AC_CHECK_MEMBER_BODY): New.
+ (AC_CHECK_MEMBER): Define and use a shell function.
+
2008-10-27 Eric Blake <address@hidden>
Prefer m4_fatal over AC_FATAL.
diff --git a/lib/autoconf/types.m4 b/lib/autoconf/types.m4
index 2b63331..c435498 100644
--- a/lib/autoconf/types.m4
+++ b/lib/autoconf/types.m4
@@ -821,6 +821,26 @@ you adjust the code.])
# Generic checks. #
# ---------------- #
+# _AC_CHECK_MEMBER_BODY
+# ---------------------
+# Shell function body for AC_CHECK_MEMBER.
+m4_define([_AC_CHECK_MEMBER_BODY],
+[ AS_LINENO_PUSH([$[]1])
+ AC_CACHE_CHECK([for $[]2.$[]3], [$[]4],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$[]5],
+[static $[]2 ac_aggr;
+if (ac_aggr.$[]3)
+return 0;])],
+ [AS_VAR_SET([$[]4], [yes])],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$[]5],
+[static $[]2 ac_aggr;
+if (sizeof ac_aggr.$[]3)
+return 0;])],
+ [AS_VAR_SET([$[]4], [yes])],
+ [AS_VAR_SET([$[]4], [no])])])])
+ AS_LINENO_POP
+])dnl
+
# AC_CHECK_MEMBER(AGGREGATE.MEMBER,
# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
# [INCLUDES = DEFAULT-INCLUDES])
@@ -828,28 +848,18 @@ you adjust the code.])
# AGGREGATE.MEMBER is for instance `struct passwd.pw_gecos', shell
# variables are not a valid argument.
AC_DEFUN([AC_CHECK_MEMBER],
-[AS_LITERAL_IF([$1], [],
- [AC_FATAL([$0: requires literal arguments])])]dnl
-[m4_if(m4_index([$1], [.]), [-1],
- [m4_fatal([$0: Did not see any dot in `$1'])])]dnl
+[AC_REQUIRE_SHELL_FN([ac_func_]_AC_LANG_ABBREV[_check_member],
+ [AS_FUNCTION_DESCRIBE([ac_func_]_AC_LANG_ABBREV[_check_member],
+ [LINENO AGGR MEMBER VAR INCLUDES],
+ [Tries to find if the field MEMBER exists in type AGGR, after including
+ INCLUDES, setting cache variable VAR accordingly.])],
+ [_$0_BODY])]dnl
+[AS_LITERAL_IF([$1], [], [m4_fatal([$0: requires literal arguments])])]dnl
+[m4_if(m4_index([$1], [.]), -1, [m4_fatal([$0: Did not see any dot in
`$1'])])]dnl
[AS_VAR_PUSHDEF([ac_Member], [ac_cv_member_$1])]dnl
-dnl Extract the aggregate name, and the member name
-[AC_CACHE_CHECK([for $1], [ac_Member],
-[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])],
-[dnl AGGREGATE ac_aggr;
-static m4_bpatsubst([$1], [\..*]) ac_aggr;
-dnl ac_aggr.MEMBER;
-if (ac_aggr.m4_bpatsubst([$1], [^[^.]*\.]))
-return 0;])],
- [AS_VAR_SET([ac_Member], [yes])],
-[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])],
-[dnl AGGREGATE ac_aggr;
-static m4_bpatsubst([$1], [\..*]) ac_aggr;
-dnl sizeof ac_aggr.MEMBER;
-if (sizeof ac_aggr.m4_bpatsubst([$1], [^[^.]*\.]))
-return 0;])],
- [AS_VAR_SET([ac_Member], [yes])],
- [AS_VAR_SET([ac_Member], [no])])])])
+[ac_func_[]_AC_LANG_ABBREV[]_check_member "$LINENO" ]dnl
+[m4_bpatsubst([$1], [^\([^.]*\)\.\(.*\)], ["\1" "\2"]) "ac_Member" ]dnl
+["AS_ESCAPE([AC_INCLUDES_DEFAULT([$4], [""])])"
AS_VAR_IF([ac_Member], [yes], [$2], [$3])
AS_VAR_POPDEF([ac_Member])dnl
])# AC_CHECK_MEMBER
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