--- old/src/hotspot/os/bsd/os_bsd.inline.hpp	2018-10-04 11:57:56.000000000 -0500
+++ new/src/hotspot/os/bsd/os_bsd.inline.hpp	2018-10-04 11:57:56.000000000 -0500
@@ -34,11 +34,50 @@
 #include <poll.h>
 #include <netdb.h>
 
-// File names are case-insensitive on windows only
+#ifdef __APPLE__
+
+#include <strings.h>
+#include <xlocale.h>
+
+// File names could be case-insensitive on Mac OS X,
+// depending on the filesystem's capabilities.
+static bool is_filesystem_case_insensitive(const char* path) {
+  char resolved[PATH_MAX] = {'\0'};
+  if (path[0] != '/') {
+    // The path is relative, so find the current working directory
+    os::get_current_directory(resolved, PATH_MAX);
+    // Start resolving full path
+    int remaining = PATH_MAX - strlen(resolved) - 1;
+    if (remaining > 0) {
+      strncat(resolved, "/", (size_t)remaining);
+    }
+  }
+  // Resolve full path
+  int remaining = PATH_MAX - strlen(resolved) - 1;
+  if (remaining > 0) {
+    strncat(resolved, path, (size_t)remaining);
+  }
+  return (pathconf(resolved, _PC_CASE_SENSITIVE) == 0);
+}
+
+inline int os::file_name_strncmp(const char* s1, const char* s2, size_t num) {
+  int result = strncmp(s1, s2, num);
+  if ((result != 0) && (strlen(s1) == strlen(s2))) {
+    if (is_filesystem_case_insensitive(s1)) {
+      result = strncasecmp(s1, s2, num);
+    }
+  }
+  return result;
+}
+
+#else
+
 inline int os::file_name_strncmp(const char* s1, const char* s2, size_t num) {
   return strncmp(s1, s2, num);
 }
 
+#endif // __APPLE__
+
 inline bool os::obsolete_option(const JavaVMOption *option) {
   return false;
 }