glibc/configure, branch master

manual: add syscalls

2024-07-09T09:54:29Z

The purpose of this patch is to add some system calls that (1) aren't otherwise documented, and (2) are merely redirected to the kernel, so can refer to their documentation; and define a standard way of doing so in the future. A more detailed explaination of how system calls are wrapped is added along with reference to the Linux Man-Pages project. Default version of man-pages is in configure.ac but can be overridden by --with-man-pages=X.Y Reviewed-by: Alejandro Colomar

Add --disable-static-c++-tests option [BZ #31797]

2024-07-02T07:51:34Z

By default, if the C++ toolchain lacks support for static linking, configure fails to find the C++ header files and the glibc build fails. The --disable-static-c++-link-check option allows the glibc build to finish, but static C++ tests will fail if the C++ toolchain doesn't have the necessary static C++ libraries which may not be easily installed. Add --disable-static-c++-tests option to skip the static C++ link check and tests. This fixes BZ #31797. Signed-off-by: H.J. Lu

Add --disable-static-c++-link-check option [BZ #31412]

2024-07-02T07:51:34Z

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

Convert to autoconf 2.72 (vanilla release, no distribution patches)

2024-06-17T19:15:28Z

As discussed at the patch review meeting Signed-off-by: Andreas K. Hüttel Reviewed-by: Simon Chopin

elf: Enable TLS descriptor tests on aarch64

2024-03-19T17:53:30Z

The aarch64 uses 'trad' for traditional tls and 'desc' for tls descriptors, but unlike other targets it defaults to 'desc'. The gnutls2 configure check does not set aarch64 as an ABI that uses TLS descriptors, which then disable somes stests. Also rename the internal machinery fron gnu2 to tls descriptors. Checked on aarch64-linux-gnu. Reviewed-by: H.J. Lu

Ignore undefined symbols for -mtls-dialect=gnu2

2024-03-19T17:53:30Z

So it does not fail for arm config that defaults to -mtp=soft (which issues a call to __aeabi_read_tp). Reviewed-by: H.J. Lu

Update copyright dates with scripts/update-copyrights

2024-01-01T18:53:40Z

crypt: Remove libcrypt support

2023-10-30T16:03:59Z

All the crypt related functions, cryptographic algorithms, and make requirements are removed, with only the exception of md5 implementation which is moved to locale folder since it is required by localedef for integrity protection (libc's locale-reading code does not check these, but localedef does generate them). Besides thec code itself, both internal documentation and the manual is also adjusted. This allows to remove both --enable-crypt and --enable-nss-crypt configure options. Checked with a build for all affected ABIs. Co-authored-by: Zack Weinberg Reviewed-by: Carlos O'Donell

configure: Remove --enable-all-warnings option

2023-08-01T18:35:25Z

The option is not activelly tested and has bitrotten, to fix it would require a lot of work and multiple fixes. A better option would to evaluate each option and enable the warning if it makes sense. Reviewed-by: Siddhesh Poyarekar

scripts: Fix fortify checks if compiler does not support _FORTIFY_SOURCE=3

2023-07-20T20:58:26Z

The 30379efad1 added _FORTIFY_SOURCE checks without check if compiler does support all used fortify levels. This patch fixes it by first checking at configure time the maximum support fortify level and using it instead of a pre-defined one. Checked on x86_64 with gcc 11, 12, and 13. Reviewed-by: Siddhesh Poyarekar Tested-by: Florian Weimer