Index: autoconf/configure.ac
===================================================================
RCS file: /var/cvs/llvm/llvm/autoconf/configure.ac,v
retrieving revision 1.125
diff -u -r1.125 configure.ac
--- autoconf/configure.ac	25 Oct 2004 08:18:47 -0000	1.125
+++ autoconf/configure.ac	27 Oct 2004 13:26:01 -0000
@@ -318,6 +318,7 @@
 
 AC_FUNC_ISNAN
 AC_FUNC_ISINF
+AC_FUNC_RAND48
 
 dnl Checks for library functions.
 AC_FUNC_ALLOCA
Index: configure
===================================================================
RCS file: /var/cvs/llvm/llvm/configure,v
retrieving revision 1.131
diff -u -r1.131 configure
--- configure	25 Oct 2004 08:18:47 -0000	1.131
+++ configure	27 Oct 2004 13:26:21 -0000
@@ -23024,6 +23024,75 @@
  fi
 
 
+echo "$as_me:$LINENO: checking for srand48/lrand48/drand48 in <stdlib.h>" >&5
+echo $ECHO_N "checking for srand48/lrand48/drand48 in <stdlib.h>... $ECHO_C" >&6
+if test "${ac_cv_func_rand48+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_ext=cc
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdlib.h>
+                     void foo(void) {srand48(0);lrand48();drand48();}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_cxx_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_rand48=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_rand48=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_rand48" >&5
+echo "${ECHO_T}$ac_cv_func_rand48" >&6
+ if test "$ac_cv_func_rand48" = "yes"
+ then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_RAND48 1
+_ACEOF
+
+ fi
+
+
 # The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
 # for constant arguments.  Useless!
 echo "$as_me:$LINENO: checking for working alloca.h" >&5
Index: lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
===================================================================
RCS file: /var/cvs/llvm/llvm/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp,v
retrieving revision 1.78
diff -u -r1.78 ExternalFunctions.cpp
--- lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp	1 Sep 2004 22:55:35 -0000	1.78
+++ lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp	27 Oct 2004 13:26:22 -0000
@@ -213,6 +213,8 @@
   return GV;
 }
 
+#ifdef HAVE_RAND48
+
 // double drand48()
 GenericValue lle_X_drand48(FunctionType *M, const vector<GenericValue> &Args) {
   assert(Args.size() == 0);
@@ -236,6 +238,16 @@
   return GenericValue();
 }
 
+#endif
+
+// int rand()
+GenericValue lle_X_rand(FunctionType *M, const vector<GenericValue> &Args) {
+  assert(Args.size() == 0);
+  GenericValue GV;
+  GV.IntVal = rand();
+  return GV;
+}
+
 // void srand(uint)
 GenericValue lle_X_srand(FunctionType *M, const vector<GenericValue> &Args) {
   assert(Args.size() == 1);
@@ -676,9 +688,12 @@
   FuncNames["lle_X_log"]          = lle_X_log;
   FuncNames["lle_X_floor"]        = lle_X_floor;
   FuncNames["lle_X_srand"]        = lle_X_srand;
+  FuncNames["lle_X_rand"]         = lle_X_rand;
+#ifdef HAVE_RAND48
   FuncNames["lle_X_drand48"]      = lle_X_drand48;
   FuncNames["lle_X_srand48"]      = lle_X_srand48;
   FuncNames["lle_X_lrand48"]      = lle_X_lrand48;
+#endif
   FuncNames["lle_X_sqrt"]         = lle_X_sqrt;
   FuncNames["lle_X_puts"]         = lle_X_puts;
   FuncNames["lle_X_printf"]       = lle_X_printf;