Fix __bzero on darwin 10.

LLVM calls __bzero directly which is not allowed by libclamav.
Provide wrapper.

ChangeLog

@@ -3,6 +3,10 @@ Fri Sep 10 10:52:45 CEST 2010 (acab)
  * clamav-milter/netcode.c: fix error path fd leak when connection succeeds
 			    but ping fails (bb#2259)
 
+Thu Sep  9 22:07:13 EEST 2010 (edwin)
+-------------------------------------
+ * libclamav/c++/bytecode2llvm.cpp: fix __bzero call on darwin 10.
+
 Thu Sep  9 12:30:34 EEST 2010 (edwin)
 -------------------------------------
  * libclamav/bytecode.c: properly skip bytecodes with long lines.

libclamav/c++/bytecode2llvm.cpp

@@ -196,6 +196,11 @@ static int64_t rtlib_sra_i64(int64_t a, int32_t b)
     return CLI_SRS(a, b);//CLI_./..
 }
 
+static void rtlib_bzero(void *s, size_t n)
+{
+    memset(s, 0, n);
+}
+
 // Resolve integer libcalls, but nothing else.
 static void* noUnknownFunctions(const std::string& name) {
     void *addr =
@@ -208,6 +213,7 @@ static void* noUnknownFunctions(const std::string& name) {
 	.Case("__ashrdi3", (void*)(intptr_t)rtlib_sra_i64)
 	.Case("__ashldi3", (void*)(intptr_t)rtlib_shl_i64)
 	.Case("__lshrdi3", (void*)(intptr_t)rtlib_srl_i64)
+	.Case("__bzero", (void*)(intptr_t)rtlib_bzero)
 	.Case("memmove", (void*)(intptr_t)memmove)
 	.Case("memcpy", (void*)(intptr_t)memcpy)
 	.Case("memset", (void*)(intptr_t)memset)