5 files changed, 17 insertions, 6 deletions
diff --git a/tests/manifest-parser/driver.cxx b/tests/manifest-parser/driver.cxx
index 7642f4b..e480508 100644
--- a/tests/manifest-parser/driver.cxx
+++ b/tests/manifest-parser/driver.cxx
@@ -198,7 +198,7 @@ fail (const char* m)
     cerr << "nofail: " << r << endl;
     return false;
   }
-  catch (const manifest_parsing& e)
+  catch (const manifest_parsing&)
   {
     //cerr << e << endl;
   }
diff --git a/tests/manifest-serializer/driver.cxx b/tests/manifest-serializer/driver.cxx
index d148f12..3a8aef8 100644
--- a/tests/manifest-serializer/driver.cxx
+++ b/tests/manifest-serializer/driver.cxx
@@ -247,7 +247,7 @@ fail (const pairs& m)
     cerr << "nofail: " << r << endl;
     return false;
   }
-  catch (const manifest_serialization& e)
+  catch (const manifest_serialization&)
   {
     //cerr << e << endl;
   }
diff --git a/tests/process/driver.cxx b/tests/process/driver.cxx
index bdc5f4a..b154bce 100644
--- a/tests/process/driver.cxx
+++ b/tests/process/driver.cxx
@@ -294,8 +294,13 @@ main (int argc, const char* argv[])
   v.reserve (5000 * 256);
   for (size_t i (0); i < 5000; ++i)
   {
-    for (size_t c (0); c < 256; ++c)
+    char c (numeric_limits<char>::min ());
+
+    do
+    {
       v.push_back (c);
+    }
+    while (c++ != numeric_limits<char>::max ());
   }
 
   assert (exec (p, v, true, true));
diff --git a/tests/target-triplet/driver.cxx b/tests/target-triplet/driver.cxx
index 8691bac..b446a6f 100644
--- a/tests/target-triplet/driver.cxx
+++ b/tests/target-triplet/driver.cxx
@@ -152,7 +152,7 @@ fail (const char* s)
     cerr << "nofail: " << s << endl;
     return false;
   }
-  catch (invalid_argument& e)
+  catch (const invalid_argument&)
   {
     //cerr << e << endl;
   }
diff --git a/tests/timestamp/driver.cxx b/tests/timestamp/driver.cxx
index b268e00..d1e8d2c 100644
--- a/tests/timestamp/driver.cxx
+++ b/tests/timestamp/driver.cxx
@@ -2,7 +2,7 @@
 // copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
 // license   : MIT; see accompanying LICENSE file
 
-#include <time.h> // tzset()
+#include <time.h> // tzset() (POSIX), _tzset() (Windows)
 
 #include <chrono>
 #include <locale>
@@ -80,7 +80,13 @@ ns (unsigned long long t)
 int
 main ()
 {
-  tzset (); // To use butl::to_stream() later on.
+  // To use butl::to_stream() later on.
+  //
+#ifndef _WIN32
+  tzset ();
+#else
+  _tzset ();
+#endif
 
   // Invalid %[].
   //