[fpc-pascal] cross compiling enigma
jonas.maebe at elis.ugent.be
Sun Dec 9 12:24:05 CET 2007
On 08 Dec 2007, at 19:26, Sam Liddicott wrote:
>> So... because the makefile knew it was compiling for the same
>> architecture it decided that I wasn't building an fpc cross compiler
>> but cross building an fpc compiler? That's a bit unexpectedly
> So... this time:
> $ make clean all CPU_TARGET=powerpc OS_TARGET=linux FPC=/usr/bin/
> And, just like before, it has created a load of powerpc binaries:
> $ file /≈/usr/bin/postw32
> /tmp/fpc_patchdir/fpc_build/usr/bin/postw32: ELF 32-bit MSB
> PowerPC or cisco 4500, version 1 (SYSV), statically linked, stripped
"make clean all" does not put anything in usr/bin, so you at least alo
have done a "make install" afterwards.
> So I'm still puzzled that the recipe for creating a cross compiler is
> actually cross-compiling a compiler and cross-compiling the tools.
> Of course, compiler/ppcrossppc was created, but it seems as a
> to creating all the powerpc binaries.
It's a cross compiler, which is indeed necessary to create PowerPC
> So I still think I'm doing it wrong; was my make command line
> correct to
> produce an fpc instance that will cross-compile for powerpc-linux?
Cross compilers are only intended as add-ons to a native compiler
suite. If you do a plain install, the Makefiles assume you want to
create a native install for the target platform (although currently
this will only work consistently if both the source and target
platform have the same endianess).
If you want to perform an add-on cross install (which will only
install the cross compiler and units, but not the PowerPC-native
compiler and utilities -- as the natively installed versions of those
utilities will be used), do something like this:
make FPC=`pwd`/compiler/ppcrossppc INSTALL_PREFIX=/tmp/fpc_patchdir/
fpc_build/usr install CROSSINSTALL=1
(the CROSSINSTALL=1 may not even be necessary when you point FPC to
the cross compiler, as the Makefile should detect that it's a cross
compiler and set that variable itself)
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