Re: on how to install gnutls dlls on windows

[Wayne Harris via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>]

Eli Zaretskii <eliz@gnu.org> writes:

>> Date: Sun, 18 Apr 2021 13:12:53 -0300
>> From: Wayne Harris via Users list for the GNU Emacs text editor
>> <help-gnu-emacs@gnu.org>
>> 
>> I don't know how to install this library.  My GNU Emacs 27.1 is a 64-bit
>> application.  I have MSYS2 installed and I used PACMAN to install the
>> packages
>> 
>>   gnutls-3.7.0-1-x86_64.pkg.tar.zst
>>   libgnutls-3.7.0-1-x86_64.pkg.tar.zst
>> 
>> As a consequence, I have the following files, among others:
>> 
>> --8<---------------cut here---------------start------------->8---
>> ./usr/bin/gnutls-cli-debug.exe
>> ./usr/bin/gnutls-cli.exe
>> ./usr/bin/gnutls-serv.exe
>> ./usr/bin/msys-gnutls-30.dll
>> ./usr/bin/msys-gnutlsxx-28.dll
>> ./var/cache/pacman/pkg/gnutls-3.7.0-1-x86_64.pkg.tar.zst
>> ./var/cache/pacman/pkg/libgnutls-3.7.0-1-x86_64.pkg.tar.zst
>> ./bin/gnutls-cli-debug.exe
>> ./bin/gnutls-cli.exe
>> ./bin/gnutls-serv.exe
>> ./bin/msys-gnutls-30.dll
>> ./bin/msys-gnutlsxx-28.dll
>> --8<---------------cut here---------------end--------------->8---
>
> You've installed the wrong package: the above is the MSYS GnuTLS,
> whereas you need MinGW port of GnuTLS.  Look for a package with
> "mingw" in its name.
>
> To install, put the DLLs in the package either in the same directory
> where you have the emacs.exe executable, or somewhere on your Path.

Thanks!  But I'm not quite there yet.  I found

  mingw-w64-x86_64-gnutls

and installed it:

--8<---------------cut here---------------start------------->8---
%pacman -S mingw-w64-x86_64-gnutls
resolving dependencies...
looking for conflicting packages...

Packages (4) mingw-w64-x86_64-libidn2-2.3.0-1
             mingw-w64-x86_64-libunistring-0.9.10-2
             mingw-w64-x86_64-nettle-3.7-1  mingw-w64-x86_64-gnutls-3.7.0-1

Total Download Size:    3.49 MiB
Total Installed Size:  21.18 MiB

:: Proceed with installation? [Y/n] Y
Y
:: Retrieving packages...
downloading mingw-w64-x86_64-libunistring-0.9.10-2-any.pkg.tar.zst...
downloading mingw-w64-x86_64-libidn2-2.3.0-1-any.pkg.tar.xz...
downloading mingw-w64-x86_64-nettle-3.7-1-any.pkg.tar.zst...
downloading mingw-w64-x86_64-gnutls-3.7.0-1-any.pkg.tar.zst...
checking keyring...
checking package integrity...
loading package files...
checking for file conflicts...
checking available disk space...
:: Processing package changes...
installing mingw-w64-x86_64-libunistring...
installing mingw-w64-x86_64-libidn2...
installing mingw-w64-x86_64-nettle...
installing mingw-w64-x86_64-gnutls...
--8<---------------cut here---------------end--------------->8---

Then I looked at all DLLs that all packages bring:

--8<---------------cut here---------------start------------->8---
%pacman -Ql mingw-w64-x86_64-gnutls mingw-w64-x86_64-nettle mingw-w64-x86_64-libidn2 mingw-w64-x86_64-libunistring | grep dll
mingw-w64-x86_64-gnutls /mingw64/bin/libgnutls-30.dll
mingw-w64-x86_64-gnutls /mingw64/bin/libgnutlsxx-28.dll
mingw-w64-x86_64-gnutls /mingw64/lib/libgnutls.dll.a
mingw-w64-x86_64-gnutls /mingw64/lib/libgnutlsxx.dll.a
mingw-w64-x86_64-nettle /mingw64/bin/libhogweed-6.dll
mingw-w64-x86_64-nettle /mingw64/bin/libnettle-8.dll
mingw-w64-x86_64-nettle /mingw64/lib/libhogweed.dll.a
mingw-w64-x86_64-nettle /mingw64/lib/libnettle.dll.a
mingw-w64-x86_64-libidn2 /mingw64/bin/libidn2-0.dll
mingw-w64-x86_64-libidn2 /mingw64/lib/libidn2.dll.a
mingw-w64-x86_64-libunistring /mingw64/bin/libunistring-2.dll
mingw-w64-x86_64-libunistring /mingw64/include/unistring/woe32dll.h
mingw-w64-x86_64-libunistring /mingw64/lib/libunistring.dll.a
--8<---------------cut here---------------end--------------->8---

I copied them all to c:/sys/emacs/bin, where my emacs.exe lives:

--8<---------------cut here---------------start------------->8---
%pwd
c:/sys/emacs/bin

%ls -l emacs.exe
-rwxr-xr-x 1 x 6459904 Aug 21  2020 emacs.exe

%file emacs.exe
emacs.exe: PE32+ executable (console) x86-64 (stripped to external PDB), for MS Windows

%(setenv "p" "c:/sys/emacs/usr/mingw/mingw64/bin/")
c:/sys/emacs/usr/mingw/mingw64/bin/

%echo $p
c:/sys/emacs/usr/mingw/mingw64/bin/

%cp $p/libgnutls-30.dll $p/libgnutlsxx-28.dll $p/libhogweed-6.dll \
    $p/libnettle-8.dll $p/libidn2-0.dll $p/libunistring-2.dll .

%ls lib*
libgnutls-30.dll
libgnutlsxx-28.dll
libhogweed-6.dll
libidn2-0.dll
libnettle-8.dll
libpng-config
libpng16-config
libunistring-2.dll
%
--8<---------------cut here---------------end--------------->8---

I ran another emacs instance (through runemacs.exe), but 

  gnutls-available-p

still produces nil.