question: can self-dlopen() be eliminated

[dvrogozh]

As highlighted in #60, opencl-clang dlopen() itself to get some symbol addresses via dlsym(). Can this be avoided? Why we can't get address at compile/linkage time?

dlopen() is called here:

opencl-clang/pch_mgr.cpp

Line 170 in 325cbb5

void *handle = dlopen(lib, RTLD_NOW);

Library name to load is set here:

opencl-clang/CMakeLists.txt

Line 147 in 325cbb5

add_definitions( -DLIBCOMMON_CLANG_NAME="lib${COMMON_CLANG_LIBRARY_NAME}.so")