[ragel] "include" does not check same directory in ragel 7? (trying to build rspamd)

[Adrian Thurston]

Hi Felix, I just checked in some changes which should allow rspamd to 
compile with ragel 7. Also fixes the duplicate include. Let me know if 
you have further problems.

On 2017-08-19 17:30, Felix Schwarz wrote:
> Hey,
> 
> I try to get rspamd (https://github.com/vstakhov/rspamd/) to build 
> while using
> ragel 7 [1]. As documented in various bug reports this is not possible 
> right
> now and I'd like to find out why this is (knowning next to nothing 
> about ragel).
> 
> This is the error I'm getting (CentOS 7) with the latest 
> colm/ragel/rspamd git
> versions:
> 
> [ 43%] [RAGEL][ragel_smtp_addr] Compiling state machine with Ragel 
> 7.0.0.10
> error: could not open smtp_address.rl
> /bin/sh: line 1:  9721 Segmentation fault      /usr/local/bin/ragel -T1
> -o/foo/rspamd/src/smtp_addr_parser.rl.c
> /foo/rspamd/src/ragel/smtp_addr_parser.rl
> make[2]: *** [src/smtp_addr_parser.rl.c] Error 139
> 
> 
> "smtp_addr_parser.rl" contains these lines (and some more):
> %%{
> 
>   machine smtp_date_parser;
>   include smtp_date "smtp_date.rl";
> 
>   main := date_time;
> }%%
> 
> "smtp_date.rl" is located in the same directory as "smtp_date.rl". The 
> script
> can be compiled with ragel 6 without any problems.
> 
> If I add the full patch in the include statement everything works as 
> expected.
> Also when I manually "cd" into the directory everything is fine.
> 
> The "ragel guide" (PDF) for 6.10 says:
> "Ragel searches for included files from the location of the current 
> file.
> Additional directories can be added to the search path using the -I 
> option."
> 
> 
> I seems that this behavior did change in 0.7 but I'm not sure if that 
> is a bug
> or a conscious decision. Also adding "-I /foo/rspamd/src/ragel/" to the 
> call
> did not help.
> 
> thank you very much
> Felix
> 
> 
> [1] Background:
> Somehow the Fedora maintainer for ragel decided to use development 
> releases of
> colm/ragel in Fedora (and even EPEL/CentOS). This unfortunate decision 
> was
> maybe facilitated by the odd/even version numbering schema of ragel.
> 
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