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2002-10-17 Roland McGrath <roland@redhat.com>

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* configure.in: Grok --without-__thread and disable HAVE___THREAD.
	* configure: Regenerated.
This commit is contained in:
Roland McGrath 2002-10-17 22:06:48 +00:00
parent 0420d8885a
commit 5b8f26b4cd
2 changed files with 174 additions and 153 deletions
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299
configure vendored
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28
configure.in
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@ -145,6 +145,10 @@ AC_ARG_WITH(tls, dnl
[ --with-tls enable support for TLS],
usetls=$withval, usetls=no)
AC_ARG_WITH(__thread, dnl
[ --without-__thread do not use TLS features even when supporting them],
use__thread=$withval, use__thread=yes)
AC_ARG_ENABLE(hidden-plt, dnl
[ --disable-hidden-plt do not hide internal function calls to avoid PLT],
hidden=$enableval, hidden=yes)
@ -1610,19 +1614,23 @@ if test "$libc_cv_gcc_subtract_local_labels" = yes; then
fi
dnl Check whether the compiler supports the __thread keyword.
AC_CACHE_CHECK([for __thread], libc_cv_gcc___thread,
[cat > conftest.c <<\EOF
__thread int a = 42;
EOF
if AC_TRY_COMMAND([${CC-cc} $CFLAGS -c conftest.c >&AC_FD_CC]); then
libc_cv_gcc___thread=yes
if test "x$use__thread" != xno; then
AC_CACHE_CHECK([for __thread], libc_cv_gcc___thread,
[cat > conftest.c <<\EOF
__thread int a = 42;
EOF
if AC_TRY_COMMAND([${CC-cc} $CFLAGS -c conftest.c >&AC_FD_CC]); then
libc_cv_gcc___thread=yes
else
libc_cv_gcc___thread=no
fi
rm -f conftest*])
if test "$libc_cv_gcc___thread" = yes; then
AC_DEFINE(HAVE___THREAD)
fi
else
libc_cv_gcc___thread=no
fi
rm -f conftest*])
if test "$libc_cv_gcc___thread" = yes; then
AC_DEFINE(HAVE___THREAD)
fi
if test "$libc_cv_gcc___thread" = yes; then
dnl Check whether the compiler supports the tls_model attribute.