Had to clean up some of my code from Codelite trials, but following your advice, I was eventually able to build samples outside of Codlite.
arnold@CarboMint:~/wx/wx-3.1.7/udb3/samples/html/helpview$ file ./helpview
./helpview: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=396665645733e17485f08207b356406df948e7ad, for GNU/Linux 3.2.0, with debug_info, not stripped
arnold@CarboMint:~/wx/wx-3.1.7/udb3/samples/html/helpview$ cd ../about/
arnold@CarboMint:~/wx/wx-3.1.7/udb3/samples/html/about$ file ./about
./about: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=8fa91533c8e20bcf37a4a0304ebcba854d1dd62e, for GNU/Linux 3.2.0, with debug_info, not stripped
both helpview & about throw up the "unknown file type' dialog if I try to execute them from Nemo, but both seem to run OK from Dolphin.