[fpc-pascal] getting cross with the cross compiler

[pascalX at piments.com]

On 10/10/17 10:35, Tony Whyman wrote:
> On 10/10/17 05:51, pascalX at piments.com wrote:
>> $make all         NOGDB=1 OS_TARGET=linux CPU_TARGET=x86_64 
>> INSTALL_PREFIX=/usr
>> Makefile:2914: *** The only supported starting compiler version is 
>> 3.0.0. You are trying to build with 3.1.1..  Stop.
>>
>> BTW is  that msg  is correct? I just built with 3.0.2 , it seems that 
>> the version block is not specific enough or the message missed a 
>> version bump. 
> Yes, that message is always very irritating - but probably right. The 
> FPC compiler I currently use is built from the fixes_3_0 branch and this 
> demands the 3.0.0 compiler to initially compile the compiler. The first 
> time I build from source there is no problem. I install the 3.0.0 
> compiler from a binary and build the source and install it. The second 
> time, the error message occurs because you now have a more recent 
> version as the installed compiler.
> 
> The way I avoid the problem is to have a script I always use to build 
> from source and to force the use of the 3.0.0 compiler for the initial 
> build. This is still on the system and will stay there (unless 
> explicitly deleted) even after the later version is installed. My script 
> saves the initial compiler version in a file "build-version" which is 
> added to my working copy of the source code tree. The script is given 
> below as an example and is intended to be run in the root directory of 
> the source tree. Note the use of the PP make variable for passing the 
> path to the initial build compiler.
> 
>    PREFIX=/usr
>    FPCPROG=ppcx64
> 
>      if [ ! -f build-version ]; then
>        fpc -iV >build-version
>      fi
> 
>    BUILDVERSION=`cat build-version`
> 
>    if [ ! -x $PREFIX/lib/fpc/$BUILDVERSION/$FPCPROG ]; then
>      echo "FPC Build Version ($BUILDVERSION) not found"
>      exit 1
>    fi
> 
>    echo "make default target compiler and libraries"
> 
>    export FPCDIR=$PREFIX/lib/fpc/$BUILDVERSION
> 
> 
>    make all PP=$PREFIX/lib/fpc/$BUILDVERSION/$FPCPROG OPTIMIZE=1
>    if [ $? -ne 0 ]; then
>      exit $?
>    fi
> 
>    if [ ! -x compiler/$FPCPROG ]; then
>      echo "Failed to build compiler"
>      exit 1
>    fi
> 
> _


Thanks very much .