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Re: [PATCH] libstdc++-v3: Check for TLS support on mingw
- From: Jonathan Wakely <jwakely dot gcc at gmail dot com>
- To: Hugo Beauzée-Luyssen <hugo at beauzee dot fr>
- Cc: gcc-patches <gcc-patches at gcc dot gnu dot org>, "libstdc++" <libstdc++ at gcc dot gnu dot org>
- Date: Mon, 26 Feb 2018 21:04:41 +0000
- Subject: Re: [PATCH] libstdc++-v3: Check for TLS support on mingw
- Authentication-results: sourceware.org; auth=none
- References: <1519030763.2942755.1275455464.4F3B5B67@webmail.messagingengine.com>
Apologies if you get this mail multiple times, I'm having some trouble
sending mail to @gcc.gnu.org lists.
On 19/02/18 09:59 +0100, Hugo Beauzée-Luyssen wrote:
> libstdc++-v3: Check for TLS support on mingw
>
> 2018-02-16 Hugo Beauzée-Luyssen <hugo@beauzee.fr>
>
> * crossconfig.m4: Check for TLS support on mignw
Typo "minwg"
> * configure: regenerate
>
> Index: libstdc++-v3/crossconfig.m4
> ===================================================================
> --- libstdc++-v3/crossconfig.m4 (revision 257730)
> +++ libstdc++-v3/crossconfig.m4 (working copy)
> @@ -197,6 +197,7 @@ case "${host}" in
> GLIBCXX_CHECK_LINKER_FEATURES
> GLIBCXX_CHECK_MATH_SUPPORT
> GLIBCXX_CHECK_STDLIB_SUPPORT
> + GCC_CHECK_TLS
> ;;
> *-netbsd*)
> SECTION_FLAGS='-ffunction-sections -fdata-sections'
Hi, thanks for the patch. I don't think we can apply it now, as the
GCC trunk is only open for regression fixes until GCC 8 is released.
How was this tested? Will it work for all versions of mingw that we
support? Is TLS enabled for native builds? (If so we definitely need
this, because otherwise mingw cross-compilers are not ABI compatibnle
with native ones).