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| author | H.J. Lu <hjl.tools@gmail.com> | 2024-06-20 15:28:12 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2024-07-02 00:51:34 -0700 |
| commit | 23f12e6e0c95aaf8b5b4973d029db794a43f248a (patch) | |
| tree | 0a1f40e34bcefc6644c16a618e31081e912a7c8d /manual | |
| parent | dce754b1553b86fc6352636f1fa490a85b7cf0ff (diff) | |
| download | glibc-23f12e6e0c95aaf8b5b4973d029db794a43f248a.zip glibc-23f12e6e0c95aaf8b5b4973d029db794a43f248a.tar.gz glibc-23f12e6e0c95aaf8b5b4973d029db794a43f248a.tar.bz2 | |
Add --disable-static-c++-link-check option [BZ #31412]
The current minimum GCC version of glibc build is GCC 6.2 or newer. But
building i686 glibc with GCC 6.4 on Fedora 40 failed since the C++ header
files couldn't be found which was caused by the static C++ link check
failure due to missing __divmoddi4 which was referenced in i686 libc.a
and added to GCC 7. Add --disable-static-c++-link-check configure option
to disable the static C++ link test. The newly built i686 libc.a can be
used by GCC 6.4 to create static C++ tests. This fixes BZ #31412.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Diffstat (limited to 'manual')
| -rw-r--r-- | manual/install.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/manual/install.texi b/manual/install.texi index 6504d02..6b6595a 100644 --- a/manual/install.texi +++ b/manual/install.texi @@ -252,6 +252,14 @@ configure with @option{--disable-werror}. By default for x86_64, @theglibc{} is built with the vector math library. Use this option to disable the vector math library. +@item --disable-static-c++-link-check +By default, if the C++ toolchain lacks support for static linking, +configure fails to find the C++ header files and the glibc build fails. +Use this option to disable the static C++ link check so that the C++ +header files can be located. The newly built libc.a can be used to +create static C++ tests if the C++ toolchain has the necessary static +C++ libraries. + @item --disable-scv Disable using @code{scv} instruction for syscalls. All syscalls will use @code{sc} instead, even if the kernel supports @code{scv}. PowerPC only. |