Re: minor compiler warning on OpenBSD

Tom Lane wrote:
> Michael Meskes <meskes(at)postgresql(dot)org> writes:
>> On Wed, Jul 11, 2007 at 07:18:17PM -0400, Tom Lane wrote:
>>> Now if we could only get rid of those flex-induced warnings in ecpg...
>
>> Don't you get the same in the backend's parser code? I surely do.
>
> No, ecpg is the only one producing warnings for me. What flex version
> do you use?
>
>> It seems these are only missing prototypes. How about adding an include
>> file with those prototypes?
>
> What I get with flex 2.5.4 is
>
> pgc.c: In function `base_yylex':
> pgc.c:1564: warning: label `find_rule' defined but not used
> preproc.y: At top level:
> pgc.c:3818: warning: `yy_flex_realloc' defined but not used
>
> neither of which seem fixable that way.

I think Michael is refering to:

In file included from bootparse.y:380:
bootscanner.c:1855: warning: no previous prototype for
‘boot_yyget_lineno’
bootscanner.c:1864: warning: no previous prototype for ‘boot_yyget_in’
bootscanner.c:1872: warning: no previous prototype for ‘boot_yyget_out’
bootscanner.c:1880: warning: no previous prototype for ‘boot_yyget_leng’
bootscanner.c:1889: warning: no previous prototype for ‘boot_yyget_text’
bootscanner.c:1898: warning: no previous prototype for
‘boot_yyset_lineno’
bootscanner.c:1910: warning: no previous prototype for ‘boot_yyset_in’
bootscanner.c:1915: warning: no previous prototype for ‘boot_yyset_out’
bootscanner.c:1920: warning: no previous prototype for
‘boot_yyget_debug’
bootscanner.c:1925: warning: no previous prototype for
‘boot_yyset_debug’
bootscanner.c:1959: warning: no previous prototype for
‘boot_yylex_destroy’

In file included from gram.y:9663:
scan.c:7050: warning: no previous prototype for ‘base_yyget_lineno’
scan.c:7059: warning: no previous prototype for ‘base_yyget_in’
scan.c:7067: warning: no previous prototype for ‘base_yyget_out’
scan.c:7075: warning: no previous prototype for ‘base_yyget_leng’
scan.c:7084: warning: no previous prototype for ‘base_yyget_text’
scan.c:7093: warning: no previous prototype for ‘base_yyset_lineno’
scan.c:7105: warning: no previous prototype for ‘base_yyset_in’
scan.c:7110: warning: no previous prototype for ‘base_yyset_out’
scan.c:7115: warning: no previous prototype for ‘base_yyget_debug’
scan.c:7120: warning: no previous prototype for ‘base_yyset_debug’
scan.c:7154: warning: no previous prototype for ‘base_yylex_destroy’

...

http://buildfarm.postgresql.org/cgi-bin/show_stage_log.pl?nm=Shad&dt=2007-07-16%20053004&stg=make

Stefan