Fix build on VC7

ConfigureChecks.cmake

@@ -44,7 +44,11 @@ if (WIN32)
       check_function_exists(_vsnprintf_s HAVE__VSNPRINTF_S)
       check_function_exists(_vsnprintf HAVE__VSNPRINTF)
   endif(NOT HAVE_VSNPRINTF)
-
+  check_function_exists(snprintf HAVE_SNPRINTF)
+  if(NOT HAVE_SNPRINTF)
+      check_function_exists(_snprintf HAVE__SNPRINTF)
+      check_function_exists(_snprintf_s HAVE__SNPRINTF_S)
+  endif(NOT HAVE_HAVE_SNPRINTF)
   check_function_exists(strncpy HAVE_STRNCPY)
 
   set(HAVE_SELECT TRUE)

config.h.cmake

@@ -46,6 +46,16 @@
 /* Define to 1 if you have the `_vsnprintf_s' function. */
 #cmakedefine HAVE__VSNPRINTF_S
 
+/* Define to 1 if you have the `snprintf' function. */
+#cmakedefine HAVE_SNPRINTF
+
+/* Define to 1 if you have the `_snprintf' function. */
+#cmakedefine HAVE__SNPRINTF
+
+/* Define to 1 if you have the `_snprintf_s' function. */
+#cmakedefine HAVE__SNPRINTF_S
+
+
 /* Define to 1 if you have the `strncpy' function. */
 #cmakedefine HAVE_STRNCPY
 

include/libssh/priv.h

@@ -50,8 +50,17 @@
 #undef strtok_r
 #define strtok_r strtok_s
 
-#undef snprintf
+#ifndef HAVE_SNPRINTF
+#ifdef HAVE__SNPRINTF_S
 #define snprintf(d, n, ...) _snprintf_s((d), (n), _TRUNCATE, __VA_ARGS__)
+#else
+#ifdef HAVE__SNPRINTF
+#define snprintf _snprintf
+#else 
+#error "no snprintf compatible function found"
+#endif /* HAVE__SNPRINTF */
+#endif /* HAVE__SNPRINTF_S */
+#endif /* HAVE_SNPRINTF */
 
 #ifndef HAVE_VSNPRINTF
 #ifdef HAVE__VSNPRINTF_S
@@ -59,7 +68,7 @@
 #elif HAVE__VSNPRINTF
 #define vsnprintf _vsnprintf
 #else /* HAVE_VSNPRINTF */
-#error "No vsnprintf compatibel function found"
+#error "No vsnprintf compatible function found"
 #endif
 #endif /* HAVE_VSNPRINTF */