Question

I’m trying to build a simple c application using gcc on aix

gcc -I. -c hello.c -o hello.o
gcc -o helloWorld hello.o -L helloHelper.so -ldl

I get the following errors

ld 0711-317 ERROR: Undefined symbol: .PrintHello

PrintHello is a method in the library helloHelper.

I can build the application in windows.

Answer 1

The option -L is for indicating directories where to search for libraries. To link a dynamic library directly, just put it in the linker command:

gcc -o helloWorld hello.o helloHelper.so -ldl

Other option would be to use -lhelloHelper but then the library should be called libhelloHelper.so.