diff --git a/configure.ac b/configure.ac
index ec6033cf5e393aad02fb609fc9dd68f22d6a150e..db4433a8c1daef5cc8614e4321564da7bb2d3996 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,7 +19,6 @@ AC_C_INLINE
 AC_TYPE_SIZE_T
 
 # Checks for library functions.
-AC_FUNC_MALLOC
 AC_CHECK_LIB([m],[pow])
 
 AC_CONFIG_FILES([Makefile])
diff --git a/interface/SKP_debug.h b/interface/SKP_debug.h
index 73d5323471949f67d59b98a5882c0484d85f444b..f6e37cf04297cc2b6b228b4b2906e82c0531883d 100644
--- a/interface/SKP_debug.h
+++ b/interface/SKP_debug.h
@@ -41,7 +41,7 @@ extern "C"
 {
 #endif
 
-unsigned long GetHighResolutionTime(); /* O: time in usec*/
+unsigned long GetHighResolutionTime(void); /* O: time in usec*/
 
 /* make SKP_DEBUG dependent on compiler's _DEBUG */
 #if defined _WIN32