Creating a Dynamic Executable

• To create a dynamic executable, don't use the -G or -d n options.

• Use the link-editor -z guidance option. Guidance messages offer suggestions for link-editor options and other actions that can improve the resulting object.

• Indicate that the dependencies of the dynamic executable should be lazily loaded using the -z lazyload option. See Lazy Loading of Dynamic Dependencies.

• Avoid unneeded dependencies. Use ldd with the -u option to detect and remove unneeded dependencies. See Shared Object Processing. Or, use the -z discard-unused=dependencies option, which instructs the link-editor to record dependencies only to objects that are referenced.

• If the dependencies of the dynamic executable do not reside in the default search locations, record their path name in the output file using the -R option. See Directories Searched by the Runtime Linker.

• Establish direct binding information using -B direct. See Direct Bindings.

The following example combines the preceding points.

$ cc -o prog -R /home/lib -z discard-unused=dependencies -z lazyload -B direct -L. \ 
    -lfoo file1.o file2.o file3.o ....