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<div class="moz-cite-prefix">You also need to be careful with
constructing all of the necessary paths and environment variables
so that no system libraries are found and that your custom build
versions are found instead. <a moz-do-not-send="true"
href="https://gitlab.freedesktop.org/gstreamer/cerbero/-/blob/master/cerbero/config.py#L450">https://gitlab.freedesktop.org/gstreamer/cerbero/-/blob/master/cerbero/config.py#L450</a>
contains a non-exhaustive list. There are also platform-specific
configurations that may modify some of those values: e.g. for
windows: <a moz-do-not-send="true"
href="https://gitlab.freedesktop.org/gstreamer/cerbero/-/blob/master/config/windows.config">https://gitlab.freedesktop.org/gstreamer/cerbero/-/blob/master/config/windows.config</a>
and then there may be recipe-specific workarounds, e.g. for
openssl: <a moz-do-not-send="true"
href="https://gitlab.freedesktop.org/gstreamer/cerbero/-/blob/master/recipes/openssl.recipe#L150">https://gitlab.freedesktop.org/gstreamer/cerbero/-/blob/master/recipes/openssl.recipe#L150</a>.<br>
<br>
Generally we would recommend the cerbero route as it tries takes
care of all of this for you. If something doesn't work, we can
attempt to fix it.<br>
<br>
On 20/7/20 1:05 am, Ben Rush wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CANV0r945ivcdk_jKPy+eqQ88WEcU+Eb_NRtoj+=7YSxiCU3HZA@mail.gmail.com">
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<div dir="ltr">
<div dir="ltr">
<div dir="ltr">I see, yes. That's a distinct possibility given
the fact my docker container has libnice-dev, which made it
in on accident. However, what's odd is that I did do a cross
build of openssl as part of the docker container. Is this
not enough? <br>
<br>
<div dir="ltr">RUN git clone <a
href="https://github.com/openssl/openssl.git"
moz-do-not-send="true">https://github.com/openssl/openssl.git</a>
&& \</div>
<div dir="ltr"><span style="white-space:pre"> </span>cd
openssl && \</div>
<div dir="ltr"><span style="white-space:pre"> </span>./Configure
--cross-compile-prefix=x86_64-w64-mingw32- mingw64
&& \</div>
<div dir="ltr"><span style="white-space:pre"> </span>make
&& \</div>
<div dir="ltr"><span style="white-space:pre"> </span>make
install</div>
<div dir="ltr"><br>
</div>
<div>All of this ran before any of the output I mentioned
above. </div>
</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sun, Jul 19, 2020 at 10:03
AM Matthew Waters <<a href="mailto:ystreet00@gmail.com"
moz-do-not-send="true">ystreet00@gmail.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<div>You need to have a cross-build of openssl or gnutls to
be able to build libnice.<br>
<br>
I assume that the 'pkg-config --version openssl' is only
showing you the system versions which would be built for
linux, not mingw.<br>
<br>
On 20/7/20 12:16 am, Ben Rush wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">In particular, I'm having trouble
getting the webrtc library to build, and it appears
as though -- if I track it back far enough -- the
issue is with libnice. The meson build output
results in the output at the end of this email (I'll
defer posting it now to make the email reading
easier). <br>
<br>
According to the error, the problem is that
pkg-config is unable to find openssl. But running
this at the command prompt (after attaching to the
container), results in what appears to be a positive
for finding openssl: <br>
<br>
<div dir="ltr">root@b5f46e708137:/gst-build#
pkg-config --version openssl</div>
<div dir="ltr">0.29.1</div>
<div dir="ltr"><br>
</div>
<div>Ultimately I'm curious if someone has been able
to build webrtc and the like cross compiled for
Windows from Ubuntu, etc. I'd love to have a nice,
dockerized system for building for Windows but
after about day of fighting, I've yet to get it to
work completely. </div>
<div><br>
</div>
<div>Here is the output: </div>
<br>
<div>|Executing subproject libnice method meson</div>
<div>|</div>
<div>|Project name: libnice</div>
<div>|Project version: 0.1.17.1</div>
<div>|C compiler for the build machine: cc (gcc
7.5.0 "cc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0")</div>
<div>|C linker for the build machine: cc ld.bfd 2.30</div>
<div>|C compiler for the host machine:
x86_64-w64-mingw32-gcc (gcc 7.3.0
"x86_64-w64-mingw32-gcc (GCC) 7.3-win32 20180312")</div>
<div>|C linker for the host machine:
x86_64-w64-mingw32-gcc ld.bfd 2.30</div>
<div>|Library iphlpapi found: YES</div>
<div>|Library ws2_32 found: YES</div>
<div>|Checking for function "clock_gettime" : NO
(cached)</div>
<div>|Library rt found: NO</div>
<div>|Checking for function "clock_gettime" with
dependency -lrt: NO (cached)</div>
<div>|Has header "arpa/inet.h" : NO (cached)</div>
<div>|Has header "net/in.h" : NO</div>
<div>|Has header "netdb.h" : NO (cached)</div>
<div>|Has header "ifaddrs.h" : NO</div>
<div>|Has header "unistd.h" : YES (cached)</div>
<div>|Checking for function "poll" : NO (cached)</div>
<div>|Checking for function "getifaddrs" : NO</div>
<div>|Compiler for C supports arguments
-fno-strict-aliasing: YES</div>
<div>|Message: warning level: 1</div>
<div>|Message: werror enabled: false</div>
<div>|Dependency gio-2.0 found: YES 2.62.6 (cached)</div>
<div>|Dependency (anonymous) from subproject
subprojects/glib found: YES 2.62.6</div>
<div>|Dependency (anonymous) from subproject
subprojects/glib found: YES 2.62.6</div>
<div>|Dependency (anonymous) from subproject
subprojects/glib found: YES 2.62.6</div>
<div>|Dependency gthread-2.0 from subproject
subprojects/glib found: YES 2.62.6</div>
<div>|Message: Crypto library requested: auto</div>
<div>|Run-time dependency gnutls found: NO (tried
pkgconfig and cmake)</div>
<div>|Run-time dependency openssl found: NO (tried
pkgconfig and cmake)</div>
<div>|Looking for a fallback subproject for the
dependency openssl</div>
<div>|Subproject directory not found and
openssl.wrap file not found</div>
<div>|Subproject subprojects/openssl is buildable:
NO (disabling)</div>
<div>|Dependency openssl from subproject
subprojects/openssl found: NO</div>
<div>|Library crypto found: NO</div>
<div>|Library eay32 found: NO</div>
<div>|</div>
<div>|subprojects/libnice/meson.build:249:4:
Exception: Problem encountered: Either GnuTLS or
OpenSSL is required as crypto library, but neither
was found</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
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</blockquote>
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