dictionary not easy to build during cross-compilation

[jpellegrini]

Hello!

I have made an (unofficial) package of PForth for OpenWRT, and while cross-compiling, I noticed that the dictionary buillt on the compiling machine (amd64) had a cell size not compatible with the device I was compiling to (32 bit big-endian MIPS). So I made the package installer do this:

• install the source system (.fth files) to /tmp/pforth-install/fth (/tmp is mounted on RAM - I did this because even those ~300k may be too much for some devices)
• source the files to build the dictionary
• copy the dictionary where PForth can use it
• delete /tmp/pforth-install/fth

However, it would be easier if one could cross-build the dictionary. Would it be too hard to implement?

[letoh]

How about using qemu user mode emulation to build the dictionary on the host machine? just like the use of wine in the mingw build: https://github.com/philburk/pforth/blob/master/platforms/mingw-crossbuild-linux/Makefile#L108

[letoh]

here is a simple example for arm target: https://github.com/letoh/pforth/blob/improve-cross-build/platforms/pc-unix-arm-unix/Makefile.cross

[jpellegrini]

How about using qemu user mode emulation to build the dictionary on the host machine? just like the use of wine in the mingw build:

I'll check... But although technically the OpenWRT build system allows this, the OpenWRT project itself doesn't allow us to use anything besides what comes out of the box in buildroot.