There is a clue in your compiler output.
> cc1: all warnings being treated as errors
If you tell the compiler to not treat Warnings as Errors then the compile will
complete.
./configure CFLAGS=-w
Adding the CFLAGS=-w to the configure turns off the setting without you needing
to modify and of the downloaded source code. You will still see the warning but
make will continue and succeed.
Obviously, this should not need to be done, and I believe it has already been
fixed for the 1.6 release of Guacamole but this works in the meantime.
Regards,
Vincent
________________________________
From: Jim Ham <jim...@porcine.com>
Sent: Saturday 27 January 2024 00:33
To: user@guacamole.apache.org <user@guacamole.apache.org>
Subject: server fails to compile - found a work-around
It's a kludge, but by disabling the warnings on those two lines the
project compiled without errors. Diff below.
Regards, Jim
<code>
*** video.c~ 2023-11-26 11:10:14.000000000 -0800
--- video.c 2024-01-26 16:19:19.158357528 -0800
***************
*** 61,70 ****
goto fail_codec;
}
! container_format = container_format_context->oformat;
/* Pull codec based on name */
AVCodec* codec = avcodec_find_encoder_by_name(codec_name);
if (codec == NULL) {
guacenc_log(GUAC_LOG_ERROR, "Failed to locate codec \"%s\".",
codec_name);
--- 61,74 ----
goto fail_codec;
}
! _Pragma("GCC diagnostic push")
! _Pragma("GCC diagnostic ignored \"-Wdiscarded-qualifiers\"")
!
! container_format = container_format_context->oformat;
/* Pull codec based on name */
AVCodec* codec = avcodec_find_encoder_by_name(codec_name);
+ _Pragma("GCC diagnostic pop")
if (codec == NULL) {
guacenc_log(GUAC_LOG_ERROR, "Failed to locate codec \"%s\".",
codec_name);
<\code>
> Guacamole 1.5.4, from the tar on the website. I did the ./configure
> and then ./make. Many files compile just fine, but the task ends with
> the following error:
>
> <code>
> CC guacenc-video.o
> video.c: In function ‘guacenc_video_alloc’:
> video.c:64:22: error: assignment discards ‘const’ qualifier from
> pointer target type [-Werror=discarded-qualifiers]
> 64 | container_format = container_format_context->oformat;
> | ^
> video.c:67:22: error: initialization discards ‘const’ qualifier from
> pointer target type [-Werror=discarded-qualifiers]
> 67 | AVCodec* codec = avcodec_find_encoder_by_name(codec_name);
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
>
> <\code>
>
> I'm compiling on a Raspberry Pi 4. GCC gives me the following version:
>
> gcc (Raspbian 12.2.0-14+rpi1) 12.2.0
> Copyright (C) 2022 Free Software Foundation, Inc.
>
> Any suggestions?
Regards, Jim Ham
--
Porcine Associates LLC
244 O'Connor St.
Menlo Park, CA 94025
USA
+1(650)326-2669 fax +1(650)326-1071
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