snmpapi: SnmpUtilDbgPrint() is a vararg and not an stdcall function.

[Francois Gouget]

This fixes a winapi_check warning.
---
 dlls/snmpapi/main.c       |    9 ++++++++-
 dlls/snmpapi/snmpapi.spec |    2 +-
 include/snmp.h            |    2 +-
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/dlls/snmpapi/main.c b/dlls/snmpapi/main.c
index 6a8f955..420fc91 100644
--- a/dlls/snmpapi/main.c
+++ b/dlls/snmpapi/main.c
@@ -136,8 +136,15 @@ BOOL WINAPI DllMain(
 
 /***********************************************************************
  *      SnmpUtilDbgPrint        (SNMPAPI.@)
+ *
+ * NOTES
+ *  The Microsoft headers claim this function uses the stdcall calling
+ *  convention. But stdcall functions cannot take a variable number of
+ *  arguments so this does not make sense. The stdcall specification is
+ *  probably ignored by Microsoft's compiler in this case. So declare it
+ *  correctly in Wine so it works with all compilers.
  */
-void WINAPI SnmpUtilDbgPrint(INT loglevel, LPSTR format, ...)
+void SnmpUtilDbgPrint(INT loglevel, LPSTR format, ...)
 {
     FIXME("(%d, %s)\n", loglevel, debugstr_a(format));
 }
diff --git a/dlls/snmpapi/snmpapi.spec b/dlls/snmpapi/snmpapi.spec
index 2ada750..385ca8a 100644
--- a/dlls/snmpapi/snmpapi.spec
+++ b/dlls/snmpapi/snmpapi.spec
@@ -20,7 +20,7 @@
 @ stub SnmpUtilAnsiToUnicode
 @ stdcall SnmpUtilAsnAnyCpy(ptr ptr)
 @ stdcall SnmpUtilAsnAnyFree(ptr)
-@ stdcall SnmpUtilDbgPrint(long str)
+@ varargs SnmpUtilDbgPrint(long str)
 @ stdcall SnmpUtilIdsToA(ptr long)
 @ stdcall SnmpUtilMemAlloc(long)
 @ stdcall SnmpUtilMemFree(ptr)
diff --git a/include/snmp.h b/include/snmp.h
index aaece6c..e5756b9 100644
--- a/include/snmp.h
+++ b/include/snmp.h
@@ -289,7 +289,7 @@ DWORD WINAPI SnmpSvcGetUptime(void);
 void WINAPI SnmpSvcSetLogLevel(int nLogLevel);
 void WINAPI SnmpSvcSetLogType(int nLogType);
 
-void WINAPI SnmpUtilDbgPrint(int nLogLevel, LPSTR szFormat, ...);
+void SnmpUtilDbgPrint(int nLogLevel, LPSTR szFormat, ...);
 
 #ifdef __cplusplus
 }
-- 
1.4.4.3