Lazarus 1.8 with FPC 3.04 64bit with cross compile with 32bit (standard installation) on Windows 10. (i386-win32 and x86_64-win64).
I need to rebuild one package (openssl), and standard make end with this error:
Fatal: Can't find unit system used by fpmake
Fatal: Compilation aborted
make: *** [fpmake.exe] Error 1