LIU Hao 25c18a03de libiberty: Preserve errno across calls to libiberty_vprintf_buffer_size() ...

The MSVCRT `strtoul()` function resets `errno` to zero upon success. On such
a system, `libiberty_vprintf_buffer_size()` could clobber `errno` like this:

   MINGW64 ~
   $ ld nonexistent.file
   C:\MSYS64\mingw64\bin\ld.exe: cannot find nonexistent.file: No error

libiberty/ChangeLog:

	* vprintf-support.c (do_strtoul): New function.
	(libiberty_vprintf_buffer_size): Replace `strtoul` with `do_strtoul`.

Signed-off-by: LIU Hao <lh_mouse@126.com>

2026-02-12 15:23:12 +00:00

4.0 KiB

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