On Tue, 17 Mar 2026, Gerald Pfeifer wrote:
> It looks like this broke bootstrap on FreeBSD 13/amd64:
>
> libtool: link: ( cd ".libs" && rm -f "libc++23convenience.la" && ln -s
> "../libc++23convenience.la" "libc++23convenience.la" )
> std.cc:3799:14: error: exporting 'int feclearexcept(int)' that does not have
> external linkage
> 3799 | using std::feclearexcept;
> | ^~~~~~~~~~~~~
> In file included from
> /scratch/tmp/gerald/OBJ-0317-0208/x86_64-unknown-freebsd13.5/libstdc++-v3/include/fenv.h:41,
> from
> /scratch/tmp/gerald/OBJ-0317-0208/x86_64-unknown-freebsd13.5/libstdc++-v3/include/cfenv:43,
> from
> /scratch/tmp/gerald/OBJ-0317-0208/x86_64-unknown-freebsd13.5/libstdc++-v3/include/x86_64-unknown-freebsd13.5/bits/stdc++.h:123,
> from std.cc:26:
> /usr/include/fenv.h:265:1: note: 'int feclearexcept(int)' declared here with
> internal linkage
My build-many-glibcs.py bot is also showing a similar error for
alpha-linux-gnu and sh4-linux-gnu. The error in those cases is of the
form:
std.cc:4126:14: error: exporting 'typedef __gnuc_va_list va_list' that does not
have external linkage
4126 | using std::va_list;
| ^~~~~~~
<built-in>: note: 'typedef struct __va_list_tag __va_list_tag' declared here
with internal linkage
(and it appeared some time between commits
a1f1a60fc6490e677d63b637cc268b513749cc5c and
9c2e4b6ac0b165684f8e924b9a1970b8468d120f, which is a range including this
one).
https://sourceware.org/pipermail/libc-testresults/2026q1/014489.html
--
Joseph S. Myers
[email protected]
