Re: Make "Giving up" silently (besides exit code)

[John Orr]

Looking closer at the -d output - I'm guessing the problem will not make sense 
unless you can see it all too - attached (hope it works)

John
On Tuesday 24 April 2007 13:05, John Orr wrote:
> Hi,
> 
> I wonder if anyone can help me - I'm using make 3.81 on Suse Linux 9.2.
> I hit a problem today where I had an error in a make file, such that a target 
> was reliant upon a prerequiste for which there was no rule.  It was my fault.
> 
> The problem, however, was that make gave no error message at all - it just 
> exited with status 2.
> 
> When I ran it with the -d option, the end of the output was
>    Considering target file `common/protocol/include/dl26/mipv6.h'.
>      File `common/protocol/include/dl26/mipv6.h' does not exist.
>       Considering target file `common/protocol/include/dl26/mipv6.h.built'.
>        File `common/protocol/include/dl26/mipv6.h.built' does not exist.
>         Considering target file `common/protocol/mipv6/dl26/mipv6.c.built'.
>          File `common/protocol/mipv6/dl26/mipv6.c.built' does not exist.
>           Considering target file `common/utils/dl26/g_ntformat'.
>            Looking for an implicit rule for `common/utils/dl26/g_ntformat'.
>            No implicit rule found for `common/utils/dl26/g_ntformat'.
>            Finished prerequisites of target file 
> `common/utils/dl26/g_ntformat'.
>           No need to remake target `common/utils/dl26/g_ntformat'.
>           Pruning file `common/protocol/dl26/locid.h.exists'.
>           Pruning file `common/protocol/mipv6/mipv6.s'.
>          Finished prerequisites of target file 
> `common/protocol/mipv6/dl26/mipv6.c.built'.
>         Giving up on target file `common/protocol/mipv6/dl26/mipv6.c.built'.
>        Finished prerequisites of target file 
> `common/protocol/include/dl26/mipv6.h.built'.
>       Giving up on target file `common/protocol/include/dl26/mipv6.h.built'.
>      Finished prerequisites of target file 
> `common/protocol/include/dl26/mipv6.h'.
>     Giving up on target file `common/protocol/include/dl26/mipv6.h'.
>    Finished prerequisites of target file 
> `common/protocol/mipv6/dl26/mipv6dec.o'.
>   Giving up on target file `common/protocol/mipv6/dl26/mipv6dec.o'.
>  Finished prerequisites of target file `common/protocol/mipv6'.
> Giving up on target file `common/protocol/mipv6'.
> 
> My problem is - I know to use the -d flag in this situation to see what's 
> really going on - but most people I work with don't.  They get no info at 
> all.  How can I detect this problem and give a meaningful error message?  I 
> could modify make's remake.c source file perhaps - but is there a better way?
> 
> The output without -d is nothing (beside explicit $(info ) statements which 
> I've deleted to avoid confusing anyone:
> quokka:/<5>intel/src> make --warn-undefined-variables --check-symlink-times 
> --no-builtin-variables --makefile=local.mk r_BUILDDIR=dl26 "DONT_USE_P4=1" 
> "DONT_DO_FINDMODULES=1" ./COMPONENT_CONTENTS=common 
> common/COMPONENT_CONTENTS=common/protocol 
> common/protocol/COMPONENT_CONTENTS=common/protocol/mipv6 
> DONT_DO_FINDMODULES=1 common/protocol/mipv6
> quokka:/<5>intel/src> echo $?
> 2
> quokka:/<5>intel/src>                
> 
> I can happily provide a full -dpq dump if it helps.
> 
> Looking at remake.c, I find
>       if (depth == 0 && keep_going_flag
>         && !just_print_flag && !question_flag)
>       error (NILF,
>                _("Target `%s' not remade because of errors."), file->name);
> 
> Presumably this if statement failed to print because I didn't have the 
> keep_going_flag (-k?) set?
> 
> Thanks for any tips you can give,
> John
> 
> 
> 
> 
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