Fix building with NOSSE2.
The change in Tcdefs.h is not required for x86, but for some reason it is
necessary for x86_64.

https://github.com/veracrypt/VeraCrypt/pull/1891

--- a/Common/Tcdefs.h
+++ b/Common/Tcdefs.h
@@ -52,9 +52,7 @@ extern unsigned short _rotl16(unsigned short value, unsigned char shift);
 
 #endif // defined(_UEFI)
 
-#ifdef TC_WINDOWS_BOOT
 #include <stddef.h>
-#endif
 
 #define TC_APP_NAME						"VeraCrypt"
 
--- a/Makefile
+++ b/Makefile
@@ -289,8 +289,8 @@ ifeq "$(shell uname -s)" "Linux"
 	endif
 	
 	ifeq "$(origin NOSSE2)" "command line"
-		CFLAGS += -mno-sse2
-		CXXFLAGS += -mno-sse2
+		CFLAGS += -mno-sse2 -DCRYPTOPP_DISABLE_AESNI -DCRYPTOPP_DISABLE_SHANI
+		CXXFLAGS += -mno-sse2 -DCRYPTOPP_DISABLE_AESNI -DCRYPTOPP_DISABLE_SHANI
 		WXCONFIG_CFLAGS += -mno-sse2
 		WXCONFIG_CXXFLAGS += -mno-sse2
 	endif