1*75f6d617Schristos#serial 2 2*75f6d617Schristos 3*75f6d617Schristosdnl From Paul Eggert. 4*75f6d617Schristos 5*75f6d617Schristos# Define HAVE_LONG_LONG if 'long long' works. 6*75f6d617Schristos 7*75f6d617SchristosAC_DEFUN([jm_AC_TYPE_LONG_LONG], 8*75f6d617Schristos[ 9*75f6d617Schristos AC_CACHE_CHECK([for long long], ac_cv_type_long_long, 10*75f6d617Schristos [AC_TRY_LINK([long long ll = 1; int i = 63;], 11*75f6d617Schristos [long long llmax = (long long) -1; 12*75f6d617Schristos return ll << i | ll >> i | llmax / ll | llmax % ll;], 13*75f6d617Schristos ac_cv_type_long_long=yes, 14*75f6d617Schristos ac_cv_type_long_long=no)]) 15*75f6d617Schristos if test $ac_cv_type_long_long = yes; then 16*75f6d617Schristos AC_DEFINE(HAVE_LONG_LONG, 1, 17*75f6d617Schristos [Define if you have the long long type.]) 18*75f6d617Schristos fi 19*75f6d617Schristos]) 20*75f6d617Schristos 21*75f6d617Schristos# Define HAVE_UNSIGNED_LONG_LONG if 'unsigned long long' works. 22*75f6d617Schristos 23*75f6d617SchristosAC_DEFUN([jm_AC_TYPE_UNSIGNED_LONG_LONG], 24*75f6d617Schristos[ 25*75f6d617Schristos AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long, 26*75f6d617Schristos [AC_TRY_LINK([unsigned long long ull = 1; int i = 63;], 27*75f6d617Schristos [unsigned long long ullmax = (unsigned long long) -1; 28*75f6d617Schristos return ull << i | ull >> i | ullmax / ull | ullmax % ull;], 29*75f6d617Schristos ac_cv_type_unsigned_long_long=yes, 30*75f6d617Schristos ac_cv_type_unsigned_long_long=no)]) 31*75f6d617Schristos if test $ac_cv_type_unsigned_long_long = yes; then 32*75f6d617Schristos AC_DEFINE(HAVE_UNSIGNED_LONG_LONG, 1, 33*75f6d617Schristos [Define if you have the unsigned long long type.]) 34*75f6d617Schristos fi 35*75f6d617Schristos]) 36