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https://issues.apache.org/jira/browse/GUACAMOLE-500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Jumper resolved GUACAMOLE-500.
--------------------------------------
Resolution: Fixed
Fix Version/s: 1.0.0
> Terminal build fails against GCC 7
> ----------------------------------
>
> Key: GUACAMOLE-500
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-500
> Project: Guacamole
> Issue Type: Bug
> Components: Terminal
> Reporter: Michael Jumper
> Assignee: Michael Jumper
> Priority: Minor
> Fix For: 1.0.0
>
>
> [As reported in the mailing
> lists|https://lists.apache.org/thread.html/2b8ec4c76f4c4832672df80eb460ec14ac558cdadf156422f0588d33@%3Cuser.guacamole.apache.org%3E],
> when guacamole-server is built against GCC 7, an additional warning is
> flagged within {{typescript.c}}, resulting in the build failing:
> {code:none}
> ...
> Making all in src/terminal
> make[2]: Entering directory
> '/home/mjumper/apache/guacamole/guacamole-server/src/terminal'
> CC libguac_terminal_la-buffer.lo
> CC libguac_terminal_la-char_mappings.lo
> CC libguac_terminal_la-common.lo
> CC libguac_terminal_la-display.lo
> CC libguac_terminal_la-named-colors.lo
> CC libguac_terminal_la-palette.lo
> CC libguac_terminal_la-scrollbar.lo
> CC libguac_terminal_la-terminal.lo
> CC libguac_terminal_la-terminal_handlers.lo
> CC libguac_terminal_la-typescript.lo
> typescript.c: In function ‘guac_terminal_typescript_alloc’:
> typescript.c:133:46: error: ‘%s’ directive writing 6 bytes into a region of
> size between 0 and 2047 [-Werror=format-overflow=]
> sprintf(typescript->timing_filename, "%s.%s", typescript->data_filename,
> ^~
> typescript.c:133:5: note: ‘sprintf’ output between 8 and 2055 bytes into a
> destination of size 2048
> sprintf(typescript->timing_filename, "%s.%s", typescript->data_filename,
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> GUAC_TERMINAL_TYPESCRIPT_TIMING_SUFFIX);
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
> make[2]: *** [Makefile:572: libguac_terminal_la-typescript.lo] Error 1
> make[2]: Leaving directory
> '/home/mjumper/apache/guacamole/guacamole-server/src/terminal'
> make[1]: *** [Makefile:517: all-recursive] Error 1
> make[1]: Leaving directory '/home/mjumper/apache/guacamole/guacamole-server'
> make: *** [Makefile:439: all] Error 2
> {code}
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