Figure 1: Try to compile and link main1.
HP-UX:sample1> gmake main1 gcc -c -o main.o main.cc gcc -c -o owncode1.o owncode1.cc gcc main.o owncode1.o -L./native_library/HP-UX -lnative -o main1 /usr/bin/ld: Unsatisfied symbols: calcEllipse(EllipseData) (first referenced in owncode1.o) (code) collect2: ld returned 1 exit status gmake: *** [main1] Error 1 HP-UX:sample1>