1 # 2 # This function determins if the srand48,drand48,lrand48 functions are 3 # available on this platform. 4 # 5 AC_DEFUN([AC_FUNC_RAND48],[ 6 AC_SINGLE_CXX_CHECK([ac_cv_func_rand48], 7 [srand48/lrand48/drand48], [<stdlib.h>], 8 [srand48(0);lrand48();drand48();]) 9 if test "$ac_cv_func_rand48" = "yes" ; then 10 AC_DEFINE([HAVE_RAND48],1,[Define to 1 if srand48/lrand48/drand48 exist in <stdlib.h>]) 11 fi 12 ]) 13