diff --git a/cmake/OptimalOptions.cmake b/cmake/OptimalOptions.cmake
index 96f2700..350a138 100644
--- a/cmake/OptimalOptions.cmake
+++ b/cmake/OptimalOptions.cmake
@@ -40,6 +40,7 @@ IF(CMAKE_COMPILER_IS_GNUCXX)
 		ADD_DEFINITIONS(-D_DEBUG)
 	ENDIF(CMAKE_BUILD_TYPE STREQUAL "debug")
 
+	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS_RELEASE} -fPIC")
 ENDIF(CMAKE_COMPILER_IS_GNUCXX)
 
 IF(MSVC)
diff --git a/src/nvcore/DefsGnucLinux.h b/src/nvcore/DefsGnucLinux.h
index 15cfffc..6abdc67 100644
--- a/src/nvcore/DefsGnucLinux.h
+++ b/src/nvcore/DefsGnucLinux.h
@@ -2,6 +2,7 @@
 #error "Do not include this file directly."
 #endif
 
+#include <stdint.h> // uint8_t, int8_t, ... uintptr_t
 #include <cstddef> // operator new, size_t, NULL
 
 // Function linkage
diff --git a/src/nvthread/nvthread.cpp b/src/nvthread/nvthread.cpp
index 463efb9..19f5e79 100644
--- a/src/nvthread/nvthread.cpp
+++ b/src/nvthread/nvthread.cpp
@@ -9,6 +9,9 @@
 #elif NV_OS_UNIX
 #include <sys/types.h>
 #include <sys/sysctl.h>
+#if NV_OS_LINUX
+#include <unistd.h>
+#endif
 #endif