perl -MExtUtils::Embed -e xsinit -- -o xsinit.c -std Data Spreadsheet Getopt #### cc -c xsinit.c `perl -MExtUtils::Embed -e ccopts` cc -c interp.c `perl -MExtUtils::Embed -e ccopts` cc -o interp interp.o xsinit.o `perl -MExtUtils::Embed -e ldopts` #### cc -o interp interp.o xsinit.o `perl -MExtUtils::Embed -e ldopts` xsinit.o: In function `xs_init': xsinit.o(.text+0x14): undefined reference to `boot_Data' xsinit.o(.text+0x2c): undefined reference to `boot_Spreadsheet' xsinit.o(.text+0x44): undefined reference to `boot_Getopt' collect2: ld returned 1 exit status