diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index fb9b9cd5e..9816ed1f5 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.6.4)
+cmake_minimum_required(VERSION 3.1.0)
 project(cryptoauth)
 
 # Various Options for Build
@@ -85,6 +85,8 @@ endif()
 
 add_library(cryptoauth ${CRYPTOAUTH_SRC} ${ATCACERT_DEF_SRC})
 
+set_property(TARGET cryptoauth PROPERTY C_STANDARD 99)
+
 if(ATCA_PRINTF)
 add_definitions(-DATCAPRINTF)
 endif(ATCA_PRINTF)
@@ -106,7 +108,7 @@ if(LINUX)
 add_definitions(-DATCA_USE_SHARED_MUTEX)
 if(HAS_LIBUSB AND ATCA_HAL_KIT_HID)
 target_link_libraries(cryptoauth usb-1.0)
-elseif(HAS_UDEV AND ATCA_HAL_KIT_HID)
+elseif(HAS_LIBUDEV AND ATCA_HAL_KIT_HID)
 target_link_libraries(cryptoauth udev)
 endif()
 target_link_libraries(cryptoauth rt)
diff --git a/python/setup.py b/python/setup.py
index c093ec64f..f757fec92 100644
--- a/python/setup.py
+++ b/python/setup.py
@@ -147,7 +147,7 @@ def build_extension(self, ext):
         try:
             subprocess.check_output(['cmake', cmakelist_path] + cmake_args, cwd=os.path.abspath(self.build_temp), stderr=subprocess.STDOUT)
         except subprocess.CalledProcessError as e:
-            msg = e.output.decode('ascii')
+            msg = e.output.decode('utf-8')
             if 'usb' in msg:
                 msg += '\n\n   USB libraries or headers were not located. If USB support is\n' \
                        '   not required it can be disabled by setting the environment\n' \
@@ -156,13 +156,16 @@ def build_extension(self, ext):
                        '       $ export CRYPTOAUTHLIB_NOUSB=True\n\n' \
                        '   Run setup.py clean before trying install again or use the pip \n' \
                        '   option --no-cache-dir\n'
-            raise Exception(msg)
+            raise RuntimeError(msg)
 
         # Build the library
         try:
             subprocess.check_output(['cmake', '--build', '.'] + build_args, cwd=os.path.abspath(self.build_temp), stderr=subprocess.STDOUT)
         except subprocess.CalledProcessError as e:
-            raise Exception(e.output.decode('ascii'))
+            if sys.version_info[0] <= 2:
+                raise RuntimeError(e.output)  # Python 2 doesn't handle unicode exceptions
+            else:
+                raise RuntimeError(e.output.decode('utf-8'))
 
 
 class CryptoAuthCommandInstall(install):