Compile everything (using make all on the source/ level), and use INSTALL_PREFIX
`c:\lazarus\fpc\3.2.0\source\rtl>make all FPC=c:\lazarus\fpc\3.2.0\bin\x86_64-win64\fpc.exe INSTALL_PREFIX=c:\lazarus\fpc\3.2.0`
builds well, but it also outputs to source\rtl\unis\$TARGET, instead place it to INSTALL_PREFIX\units\$TARGET\rtl
How to force `make` place builded objects into FPC native units\ dir?
i try make install , and fails:
```
c:\lazarus\fpc\3.2.0\source\rtl>make install FPC=c:\lazarus\fpc\3.2.0\bin\x86_64-win64\fpc.exe INSTALL_PREFIX=c:\lazarus\fpc\3.2.0 COPYTREE=echo
make -C win64 all
make[1]: Entering directory '/cygdrive/c/lazarus/fpc/3.2.0/source/rtl/win64'
make[1]: Leaving directory '/cygdrive/c/lazarus/fpc/3.2.0/source/rtl/win64'
__missing_command_FPCMAKE -p -Tx86_64-win64 Makefile.fpc
make: __missing_command_FPCMAKE: Command not found
make: *** [Makefile:1464: fpc_install] Error 127
```