Unable to build GDB on Windows

[Eli Zaretskii]

> From: Simon Cook <simon.cook@embecosm.com>
> Date: Mon, 28 Sep 2020 16:02:53 +0100
> Cc: gdb@sourceware.org
> 
> On Mon, Sep 28, 2020 at 3:25 PM Eli Zaretskii <eliz@gnu.org> wrote:
> >
> > What version of MS-Windows is that?
> 
> I'm building on 64-bit Windows 10 (version 2004 if that's relevant)
> 
> > What is the value of gl_cv_lib_assume_bcrypt in gnulib/config.cache?
> 
> gl_cv_lib_assume_bcrypt=${gl_cv_lib_assume_bcrypt=yes}
> 
> > And what do you see in gnulib/config.log about the test
> >
> >   checking whether the bcrypt library is guaranteed to be present
> >
> 
> configure:20630: checking whether the bcrypt library is guaranteed to be present
> configure:20650: gcc -c -g -O2 -D__USE_MINGW_ACCESS  conftest.c >&5
> configure:20650: $? = 0
> configure:20658: result: yes

Then I guess the problem is indeed that gdb/Makefile doesn't use
LIB_GETRANDOM, which getrandom.m4 sets as part of the above test.