Re: make can not find .cpp file, any general comments or suggestions to debug?

[Lin George]

Thank you Paul!


> Look in the documentation for your C preprocessor. 
> Any flag that
> appears in that documentation should go in CPPFLAGS.

I am using Red Hat Linux Shrike 9.0 and gcc as the
compiler. I thought preprocessor is a part of gcc
(compiler) before, but it seems that you mean there
exists another system program which only works as a
preprocessor (before gcc compiles).

Do you know which program in my system is working as
an individual preprocessor? I would like to read
through the document of the preprocessor if I know the
name of the program.


regards,
George

--- "Paul D. Smith" <address@hidden> wrote:

> %% Lin George <address@hidden> writes:
> 
>   lg> A great answer! I often use -I -D -l -L to
>   lg> compile/build program/shared library. Do you
> have any
>   lg> comments or suggestions about whether I should
> add -I
>   lg> (-D, -l and -L) to CXXFLAGS or CPPFLAGS?
> 
>   lg> What about other options -Wall, -Wl, ... etc.
> 
> Look in the documentation for your C preprocessor. 
> Any flag that
> appears in that documentation should go in CPPFLAGS.
> 
> Other flags belong somewhere else.
> 
> Typically, that means -I, -D, -U (not used much)
> would appear in
> CPPFLAGS, and just about everything else would
> appear somewhere else.
> 
> -l, -L, and -Wl,... are _LINKER_ flags.  Obviously
> not appropriate for
> the preprocessor.  In fact, you should put these
> into LDFLAGS or
> similar.
> 
> -Wall is a compiler flag.  CFLAGS and/or CXXFLAGS.
> 
> Etc.
> 
> -- 
>
-------------------------------------------------------------------------------
>  Paul D. Smith <address@hidden>          Find some
> GNU make tips at:
>  http://www.gnu.org                     
> http://make.paulandlesley.org
>  "Please remain calm...I may be mad, but I am a
> professional." --Mad Scientist
> 


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