diff --git a/configure.ac b/configure.ac
index f5e4a016..95b0d944 100644
--- a/configure.ac
+++ b/configure.ac
@@ -37,10 +37,11 @@ AC_TYPE_SSIZE_T
 AC_TYPE_UINT32_T
 AC_TYPE_UINT64_T
 AC_TYPE_UINT8_T
+AC_TYPE_INT8_T
 
 dnl Checks for library functions.
 AC_SYS_LARGEFILE
-AC_CHECK_FUNCS([memset strchr strerror strrchr mkdir])
+AC_CHECK_FUNCS([memset strchr strerror strrchr mkdir gettimeofday strtoul])
 AC_CHECK_FUNCS([getopt getopt_long snprintf vsnprintf])
 AC_CHECK_FUNCS([ftruncate fsync access posix_fallocate posix_fadvise pread pwrite getc_unlocked ferror_unlocked fnmatch])
 
diff --git a/mingw.h b/mingw.h
index be84512e..8457ba59 100644
--- a/mingw.h
+++ b/mingw.h
@@ -20,7 +20,7 @@
 
 #ifdef __MINGW32__ /* Only for MingW */
 
-#include "wchar.h"
+#include <wchar.h>
 
 /**
  * Redefines PATH_MAX to allow long UTF8 names.
diff --git a/murmurhash3.c b/murmurhash3.c
index 105f661d..37c1b1e3 100644
--- a/murmurhash3.c
+++ b/murmurhash3.c
@@ -8,11 +8,11 @@
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.	If not, see <http://www.gnu.org/licenses/>.
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /* Derivative work from MurmorHash3.cpp from http://code.google.com/p/smhasher/ */