Not really tested, but it should hopefully work, and at very least it
prevents link failures on MSVC due to absence of basename.
---
 tests/util/piglit-util.c | 29 +++++++++++++++++++++++++++++
 tests/util/piglit-util.h |  2 ++
 2 files changed, 31 insertions(+)

diff --git a/tests/util/piglit-util.c b/tests/util/piglit-util.c
index 9bd0cd2..f631bde 100644
--- a/tests/util/piglit-util.c
+++ b/tests/util/piglit-util.c
@@ -118,6 +118,35 @@ int asprintf(char **strp, const char *fmt, ...)
 
 #endif /* HAVE_ASPRINTF */
 
+#ifdef _MSC_VER
+
+char *
+basename(char *path)
+{
+       char *res;
+
+       // Skip drive letter
+       if (path[0] != '\0' && path[1] == ':') {
+               path += 2;
+       }
+
+       // Return pointer to the char after the last directory separator
+       res = path;
+       while (true) {
+               char c = *path++;
+               switch (c) {
+               case '\0':
+                       return res;
+               case '\\':
+               case '//':
+                       res = ++path;
+                       break;
+               }
+       }
+}
+
+#endif /* _MSC_VER */
+
 /**
  * \brief Split \a string into an array of strings.
  *
diff --git a/tests/util/piglit-util.h b/tests/util/piglit-util.h
index 98b1340..985ebbd 100644
--- a/tests/util/piglit-util.h
+++ b/tests/util/piglit-util.h
@@ -82,6 +82,8 @@ extern "C" {
 
 #define usleep(__usec) Sleep(((__usec) + 999)/1000)
 
+char *basename(char *path);
+
 #endif /* defined(_MSC_VER) */
 
 #if (__GNUC__ >= 3)
-- 
2.1.0

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