# Set up execinfo # The problem with this library is that it is built-in in the Linux glib, # while on systems like FreeBSD, it is installed separately and thus needs to be linked to. # Therefore, we search for the header to see if the it's available in the first place. # If it is available, we try to locate the library to figure out whether it is built-in or not. find_path(EXECINFO_INCLUDES "execinfo.h") if(EXECINFO_INCLUDES) # We found the header file's include dir. # Now determine if it's built-in or not, by searching the library file. find_library(EXECINFO_LIBRARIES "execinfo") if(NOT EXECINFO_LIBRARIES) # Built-in, no further action is needed set(EXECINFO_LIBRARIES "") message(STATUS "Found execinfo (built-in)") else() # It's an external library. message(STATUS "Found execinfo: ${EXECINFO_LIBRARIES}") endif() set(EXECINFO_FOUND true) endif()