Re: Using different compilers

[Rajesh Vaidheeswarran]

> $BIN     = "TOP/bin" ;

> This calls gcc allright, but it puts things in the wrong places: in
> particular it create a directory called TOP in #./sim and put everything
> in bin there. (I have the following in #./Construct

The BIN is defined to be TOP/bin and not $TOP/bin. Given that, cons will
create a directory called TOP.


In a previous message, Sanatan Rai writes:

> 
> : On Wed, 1 Aug 2001, Sanatan Rai wrote:
> : > I am using cons to build a simulation project in C++. However, I am using
> : > a library which is in (ANSI) C. How do I tell cons to use gcc and not g++
> : > when building the library? I tried putting an override command in the
> : > Conscript file for the library, but that didn't work.
> :
> : Set the CXX construction variable when you create or clone the
> : environment:
> :
> :     $env = new cons ( CXX => 'gcc' );
> :
> 
>       Nope, that doesn't work.
> 
> I have two directories that need to be done
> 
>       #./sim
>       #./prng
> 
> sim has the C++ code that needs to be compiled with g++, prng has the
> library which needs to be compiled with gcc.
> 
> Since #./Construct has
> 
> $SIM = new cons(
>       CC => 'g++',
>       ...
> ) ;
> 
> all compilations invoke g++. I tried defining
> 
> $SIM2 = $SIM->clone(
>       CC => 'gcc'
> ) ;
> 
> and then:
> 
> # Get variables from parent
> Import qw( SIM SIM2 INCLUDE LIB ) ;
> 
> # Install the products of this library
> Install $SIM $INCLUDE, 'config.h'; # Necessary to compile prng
> Install $SIM $INCLUDE, 'prng.h' ;
> Install $SIM $LIB, 'libprng.a' ;
> 
> # Build libprng
> Library $SIM 'libprng.a', 'anti.c', 'compound.c', 'cons.c', 'dicg.c',
> 'eicg.c',
> 'external.c', 'file.c', 'icg.c', 'lcg.c', 'meicg.c','mt19937.c', 'prng.c',
> 'qcg.
> c', 'sub.c', 'support.c' ;
> 
> This calls gcc allright, but it puts things in the wrong places: in
> particular it create a directory called TOP in #./sim and put everything
> in bin there. (I have the following in #./Construct
> 
> # Top most directory
> $TOP = '#.' ;
> 
> # Shared variables
> Export qw( SIM SIM2 INCLUDE LIB  BIN ) ;
> 
> # Share directory def
> $INCLUDE = "$TOP/include" ;
> $LIB     = "$TOP/lib" ;
> $BIN     = "TOP/bin" ;
> 
> 
> I can always build the library separately, but to avoid that sort of thing
> is precisely why I am using cons.
> 
> Thanks!
> 
> --Sanatan
> 
> 
> 
> 
> 
> -- 
> Sanatan Rai,                      | E.-mail: address@hidden
> Dept. of Management Sc. & Engg.   | Home: 100 N. Whisman Road 4316,
> Stanford University,              |       Mountain View, Ca 94043.
> Stanford, Ca 94305.               | 'phone: (650) 964 0220 (R)
> EMail: address@hidden                   (650) 736 2109 (O)
> 
> 
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