cmake HAVE_SYS_ASOUNDLIB_H examples

zynaddsubfx/zynaddsubfx cmake/FindAlsa.cmake :58 

check_include_file_cxx(sys/asoundlib.h HAVE_SYS_ASOUNDLIB_H)

rose-compiler/rose cmake/modules/FindAlsa.cmake :58 

check_include_file_cxx(sys/asoundlib.h HAVE_SYS_ASOUNDLIB_H)