define macro for emscripten

include/mcl/gmp_util.hpp

@@ -22,6 +22,9 @@
 	#pragma warning(disable : 4512)
 	#pragma warning(disable : 4146)
 #endif
+#ifdef __EMSCRIPTEN__
+	#define MCL_USE_VINT
+#endif
 #ifdef MCL_USE_VINT
 #include <mcl/vint.hpp>
 typedef mcl::Vint mpz_class;

include/mcl/op.hpp

@@ -11,6 +11,10 @@
 #ifndef MCL_MAX_BIT_SIZE
 	#define MCL_MAX_BIT_SIZE 521
 #endif
+#ifdef __EMSCRIPTEN__
+	#define MCL_DONT_USE_XBYAK
+	#define MCL_DONT_USE_OPENSSL
+#endif
 #if !defined(MCL_DONT_USE_XBYAK) && (defined(_WIN64) || defined(__x86_64__))
 	#define MCL_USE_XBYAK
 #endif

include/mcl/vint.hpp

@@ -14,6 +14,10 @@
 #include <iostream>
 #include <mcl/util.hpp>
 
+#ifdef __EMSCRIPTEN__
+	#define MCL_VINT_64BIT_PORTABLE
+#endif
+
 #ifndef MCL_SIZEOF_UNIT
 	#if defined(CYBOZU_OS_BIT) && (CYBOZU_OS_BIT == 32)
 		#define MCL_SIZEOF_UNIT 4

test/bn_test.cpp

@@ -252,10 +252,10 @@ void testPairing(const G1& P, const G2& Q, const char *eStr)
 		Fp12 e = e1, ea;
 		G1 Pa;
 		G2 Qa;
-#if MCL_SIZEOF_UNIT == 8
-		const int count = 1000;
-#else
+#if defined(__EMSCRIPTEN__) || MCL_SIZEOF_UNIT == 4
 		const int count = 100;
+#else
+		const int count = 1000;
 #endif
 		mpz_class a;
 		cybozu::XorShift rg;