The wrapper is using a tool_shed package to provide the awk binary.
The awk binary needs the readline library in a version that is not available anymore.
galaxy@sn06:/usr/local/tools/gnu_awk/4.1.0/iuc/package_gnu_awk_4_1_0/52a8268bb49f/bin$ ./awk
./awk: error while loading shared libraries: libreadline.so.6: cannot open shared object file: No such file or directory
galaxy@sn06:/usr/local/tools/gnu_awk/4.1.0/iuc/package_gnu_awk_4_1_0/52a8268bb49f/bin$ ldd awk
linux-vdso.so.1 (0x00007fff7574f000)
libreadline.so.6 => not found
libdl.so.2 => /lib64/libdl.so.2 (0x00007fd5d2ea2000)
libm.so.6 => /lib64/libm.so.6 (0x00007fd5d2b20000)
libc.so.6 => /lib64/libc.so.6 (0x00007fd5d275e000)
/lib64/ld-linux-x86-64.so.2 (0x00007fd5d30a6000)