libtool-2.4.7

[Bruce Dubbs]

New point version.

[Xi Ruoyao]

I don't see anything may benefit LFS:

Noteworthy changes in release 2.4.7 (2022-03-16) [stable]

New features:

• Libtool script now supports (configure-time and runtime) ARFLAGS variable, which obsoletes AR_FLAGS. This is due to naming conventions among other *FLAGS and to be consistent with Automake's ARFLAGS.

• Gnulib testsuite is enabled and run during 'make check'.

• Support the Windows version of the Intel C Compiler (icl) in libtool script.

• Pass '-fsanitize=*' flags for GCC and LLVM, and '-specs=*' for GCC to linker.

• Pass '-Xassembler=*' and '-Wa,*' flag to compilers and linkers.

• The variable 'FILECMD' with default value of '/usr/bin/file' was used to replace existing hard coded references to '/usr/bin/file'.

• Add MidnightBSD support.

Important incompatible changes:

• Libtool changed ARFLAGS/AR_FLAGS default from 'cru' to 'cr'.

• Do not pass '-pthread' to Solaris linker.

• 'libtool' and 'libtoolize' scripts now use '#! /usr/bin/env sh' shebang. Previously '#! /bin/sh' was used, which presents challenges for containerized environments.

Bug fixes:

• Fix significant slowdown of libtoolize for certain projects (regression introduced in 2.4.3 release) caused by infinite m4 macro recursion.

• Mitigate the slowdown of libtool script (introduced in v2.4.3) caused by increased number of calls to '$SED $sed_quote_subst' (bug#20006).

• Properly parse and export TLS symbols on AIX.

• Various bug fixes surrounding use of 'sed'.

• Darwin systems set proper "allow undefined" flag on OSX 11, and PowerPC 10.5.

• Removed some deprecated tests related to 'Makefile.inc' files.

[Xi Ruoyao]

Fixed at 0a28db3.