--- glm-0.9.9.7/glm/detail/setup.hpp.orig	2020-03-15 22:50:16.184200751 +0000
+++ glm-0.9.9.7/glm/detail/setup.hpp	2020-03-15 22:51:43.347287505 +0000
@@ -655,6 +655,10 @@
 #if GLM_HAS_EXTENDED_INTEGER_TYPE
 #	include <cstdint>
 #endif
+#if defined(__sun)
+typedef unsigned long long                                     uint64;
+typedef signed long long                                       int64;
+#endif
 
 namespace glm{
 namespace detail
@@ -662,6 +666,9 @@
 #	if GLM_HAS_EXTENDED_INTEGER_TYPE
 		typedef std::uint64_t						uint64;
 		typedef std::int64_t						int64;
+#      elif defined(__sun)
+                typedef unsigned long long                                      uint64;
+                typedef signed long long                                        int64;
 #	elif (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) // C99 detected, 64 bit types available
 		typedef uint64_t							uint64;
 		typedef int64_t								int64;