Rework submodule installation (#70)

* Rework submodule installation

- use add_subdirectory(... EXCLUDE_FROM_ALL) + explicit installation of deps
- install all library deps to lib/omnitrace
- internal builds of dyninst use libomnitrace-rt for binary rewriting
- support libdyninstAPI_RT not in LD_LIBRARY_PATH when dyninst built internally

* Update ubuntu-focal to test full dyninst install

* Use RelWithDebInfo because Dyninst segfaults with MinSizeRel

* Fix ubuntu-focal.yml install step

source/lib/CMakeLists.txt

@@ -13,13 +13,8 @@ if(_INSTALL_RPATH)
     list(REMOVE_DUPLICATES _INSTALL_RPATH)
 endif()
 string(REPLACE ";" ":" _INSTALL_RPATH "${_INSTALL_RPATH}")
-string(
-    REPLACE
-        "::"
-        ":"
-        OMNITRACE_LIB_INSTALL_RPATH
-        "\$ORIGIN:\$ORIGIN/omnitrace:\$ORIGIN/timemory/libunwind:\$ORIGIN/dyninst-tpls/libs:${_INSTALL_RPATH}"
-    )
+string(REPLACE "::" ":" OMNITRACE_LIB_INSTALL_RPATH
+               "\$ORIGIN:\$ORIGIN/omnitrace:${_INSTALL_RPATH}")
 
 add_subdirectory(common)
 add_subdirectory(omnitrace)