[PATCH] libstdc++: use lt_host_flags for libstdc++.la

[Jonathan Wakely]

On 16/09/20 13:16 +0000, JonY via Libstdc++ wrote:
>For platforms like Mingw and Cygwin, cygwin refuses to generate the
>shared library without using -no-undefined.
>
>Attached patch makes sure the right flags are used, since libtool is
>already used to link libstdc++.
>
>Patch OK?

I've pushed it to trunk myself now. Thanks.


>From 4ba039687182fccd67e1170f89e259e1c4a58eeb Mon Sep 17 00:00:00 2001
>From: Jonathan Yong <10walls@gmail.com>
>Date: Sun, 22 Mar 2020 09:56:58 +0800
>Subject: [PATCH 1/1] libstdc++: use lt_host_flags for libstdc++.la
>
>Signed-off-by: Jonathan Yong <10walls@gmail.com>
>---
> libstdc++-v3/src/Makefile.am | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/libstdc++-v3/src/Makefile.am b/libstdc++-v3/src/Makefile.am
>index a139adc81b3..498f533f3d3 100644
>--- a/libstdc++-v3/src/Makefile.am
>+++ b/libstdc++-v3/src/Makefile.am
>@@ -107,7 +107,7 @@ libstdc___la_DEPENDENCIES = \
> libstdc___la_LDFLAGS = \
> 	-version-info $(libtool_VERSION) ${version_arg} -lm
> 
>-libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS)
>+libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS) $(lt_host_flags)
> 
> # Use special rules for compatibility-ldbl.cc compilation, as we need to
> # pass -mlong-double-64.
>-- 
>2.11.4.GIT
>