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Remove NPTL configure errors based on top-level configure tests. 

sysdeps/nptl/configure.ac has code to give errors if certain tests in
the top-level configure failed.  However, all those failure conditions
also produce errors in the top-level configure, so the errors in the
NPTL configure are completely redundant; this patch removes them.

(As suggested in
<https://sourceware.org/ml/libc-alpha/2015-10/msg00510.html>, I think
the top-level tests in question can be completely removed as
unnecessary given the version tests.  But even without that there is
clearly no point in duplicating code that gives an error if the test
fails.)

Tested for x86_64 (testsuite, and that installed shared libraries are
unchanged by the patch).

	* sysdeps/nptl/configure.ac: Do not give errors based on the
	results of top-level configure tests.
	* sysdeps/nptl/configure: Regenerated.
This commit is contained in:
Joseph Myers 2015-10-15 23:59:54 +00:00
parent 2b714df5d8
commit 15306e3888
3 changed files with 4 additions and 18 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2015-10-15 Joseph Myers <joseph@codesourcery.com>
* sysdeps/nptl/configure.ac: Do not give errors based on the
results of top-level configure tests.
* sysdeps/nptl/configure: Regenerated.
* configure.ac (libc_cv_Bgroup): Remove configure test.
* configure: Regenerated.
* config.make.in (have-Bgroup): Remove variable.

9
sysdeps/nptl/configure vendored
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@ -1,14 +1,5 @@
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
if test "x$libc_cv_gcc___thread" != xyes; then
as_fn_error $? "compiler support for __thread is required" "$LINENO" 5
fi
if test "x${libc_cv_visibility_attribute}" != xyes ||
test "x${libc_cv_broken_visibility_attribute}" != xno; then
as_fn_error $? "working compiler support for visibility attribute is required" "$LINENO" 5
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for forced unwind support" >&5
$as_echo_n "checking for forced unwind support... " >&6; }

9
sysdeps/nptl/configure.ac
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@ -1,15 +1,6 @@
dnl configure fragment for new libpthread implementation.
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
if test "x$libc_cv_gcc___thread" != xyes; then
AC_MSG_ERROR(compiler support for __thread is required)
fi
if test "x${libc_cv_visibility_attribute}" != xyes ||
test "x${libc_cv_broken_visibility_attribute}" != xno; then
AC_MSG_ERROR(working compiler support for visibility attribute is required)
fi
dnl Iff <unwind.h> is available, make sure it is the right one and it
dnl contains struct _Unwind_Exception.
AC_CACHE_CHECK(dnl