Re: Automatic dependency checking problems

On Thu, 06 May 2004 20:37:00 +0200, Bram Moolenaar
<[email protected]> wrote:

>> I'm having some issues with this.
>> 
>> First: I'm running AAP under cygwin, but I'm compiling with MSVC. This
>> means that gcc can be found, so AAP will default to using that to
>> generate the dependencies. This doesn't work, for a couple of reasons:
>> 
>> 1. gcc doesn't understand the MSVC compiler flags.
>> 2. The dependency files use .o for object files, not .obj which is the
>> standard suffix for the windows platform.
>> 
>> It would be good if I could tell AAP not to try to use gcc for
>> dependency checking, regardless of whether it's found or not. There
>> doesn't seem to be a good way to do this.

>This is actually mentioned in the default.aap recipe as a todo item.
>
>I would think that when $CC is set to use MSVC, the test that gcc exists
>should fail and Aap will use aap_depend_c() instead.  Why doesn't it
>work that way?  Is $CC still set to gcc perhaps?

When I run AAP in cygwin, AAP defaults to using gcc. I have ":usetool
MSVC" in my recipe. However, the gcccheck action has cc for $CC and gcc
for $CXX. I assume this is because the value of these variables is
substituted when the action is parsed, and not when it is actually
invoked?

[...]

>The order in which directories are searched for include files is often a
>cause of trouble.  I think when using a file in double quotes the search
>always looks in the directory of the source file first.  When using <>
>that is skipped.  My old K&R C book mentions this.
>
>The code apparently uses the current directory instead of the directory
>of the source file.  I suppose that's wrong.  Please try this patch:

[...]

This does appear to have done the trick. I had to trick AAP into
believing that gcc wasn't present to get it to use aap_depend_c(),
though.

-- 
Be seeing you.



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