cmake HAVE_SOCKLIB_H examples

ornladios/ADIOS2 thirdparty/EVPath/EVPath/CMakeLists.txt :618 

CHECK_INCLUDE_FILE(sockLib.h HAVE_SOCKLIB_H)

ornladios/ADIOS2 thirdparty/ffs/ffs/CMakeLists.txt :275 

CHECK_INCLUDE_FILE(sockLib.h HAVE_SOCKLIB_H)