From c51f0ecbfd21b1eb29cfd26ea870b175d92db6c6 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Fri, 17 May 2019 15:18:17 -0400
Subject: Make config.h more Autoconf friendly (GH #835, PR #836)

---
 config_int.h | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 config_int.h

(limited to 'config_int.h')

diff --git a/config_int.h b/config_int.h
new file mode 100644
index 00000000..205deb7a
--- /dev/null
+++ b/config_int.h
@@ -0,0 +1,103 @@
+// config_int.h - written and placed in public domain by Jeffrey Walton
+//                the bits that make up this source file are from the
+//                library's monolithic config.h.
+
+/// \file config_int.h
+/// \brief Library configuration file
+/// \details <tt>config.h</tt> was split into components in May 2019 to better
+///  integrate with Autoconf and its feature tests. The splitting occured so
+///  users could continue to include <tt>config.h</tt> while allowing Autoconf
+///  to write new <tt>config_asm.h</tt> and new <tt>config_cxx.h</tt> using
+///  its feature tests.
+/// \sa <A HREF="https://github.com/weidai11/cryptopp/issues/835">Issue 835</A>
+/// \since Crypto++ 8.3
+
+#ifndef CRYPTOPP_CONFIG_INT_H
+#define CRYPTOPP_CONFIG_INT_H
+
+#include "config_ns.h"
+#include "config_ver.h"
+
+// Originally in global namespace to avoid ambiguity with other byte typedefs.
+// Moved to Crypto++ namespace due to C++17, std::byte and potential compile
+// problems. Also see http://www.cryptopp.com/wiki/std::byte and
+// http://github.com/weidai11/cryptopp/issues/442.
+// typedef unsigned char byte;
+#define CRYPTOPP_NO_GLOBAL_BYTE 1
+
+NAMESPACE_BEGIN(CryptoPP)
+
+// Signed words added at Issue 609 for early versions of and Visual Studio and
+// the NaCl gear. Also see https://github.com/weidai11/cryptopp/issues/609.
+
+typedef unsigned char byte;
+typedef unsigned short word16;
+typedef unsigned int word32;
+
+typedef signed char sbyte;
+typedef signed short sword16;
+typedef signed int sword32;
+
+#if defined(_MSC_VER) || defined(__BORLANDC__)
+	typedef signed __int64 sword64;
+	typedef unsigned __int64 word64;
+	#define SW64LIT(x) x##i64
+	#define W64LIT(x) x##ui64
+#elif (_LP64 || __LP64__)
+	typedef signed long sword64;
+	typedef unsigned long word64;
+	#define SW64LIT(x) x##L
+	#define W64LIT(x) x##UL
+#else
+	typedef signed long long sword64;
+	typedef unsigned long long word64;
+	#define SW64LIT(x) x##LL
+	#define W64LIT(x) x##ULL
+#endif
+
+// define large word type, used for file offsets and such
+typedef word64 lword;
+const lword LWORD_MAX = W64LIT(0xffffffffffffffff);
+
+// define hword, word, and dword. these are used for multiprecision integer arithmetic
+// Intel compiler won't have _umul128 until version 10.0. See http://softwarecommunity.intel.com/isn/Community/en-US/forums/thread/30231625.aspx
+#if (defined(_MSC_VER) && (!defined(__INTEL_COMPILER) || __INTEL_COMPILER >= 1000) && (defined(_M_X64) || defined(_M_IA64))) || (defined(__DECCXX) && defined(__alpha__)) || (defined(__INTEL_COMPILER) && defined(__x86_64__)) || (defined(__SUNPRO_CC) && defined(__x86_64__))
+	typedef word32 hword;
+	typedef word64 word;
+#else
+	#define CRYPTOPP_NATIVE_DWORD_AVAILABLE 1
+	#if defined(__alpha__) || defined(__ia64__) || defined(_ARCH_PPC64) || defined(__x86_64__) || defined(__mips64) || defined(__sparc64__)
+		#if ((CRYPTOPP_GCC_VERSION >= 30400) || (CRYPTOPP_LLVM_CLANG_VERSION >= 30000) || (CRYPTOPP_APPLE_CLANG_VERSION >= 40300)) && (__SIZEOF_INT128__ >= 16)
+			// GCC 4.0.1 on MacOS X is missing __umodti3 and __udivti3
+			// GCC 4.8.3 and bad uint128_t ops on PPC64/POWER7 (Issue 421)
+			// mode(TI) division broken on amd64 with GCC earlier than GCC 3.4
+			typedef word32 hword;
+			typedef word64 word;
+			typedef __uint128_t dword;
+			typedef __uint128_t word128;
+			#define CRYPTOPP_WORD128_AVAILABLE 1
+		#else
+			// if we're here, it means we're on a 64-bit CPU but we don't have a way to obtain 128-bit multiplication results
+			typedef word16 hword;
+			typedef word32 word;
+			typedef word64 dword;
+		#endif
+	#else
+		// being here means the native register size is probably 32 bits or less
+		#define CRYPTOPP_BOOL_SLOW_WORD64 1
+		typedef word16 hword;
+		typedef word32 word;
+		typedef word64 dword;
+	#endif
+#endif
+
+#ifndef CRYPTOPP_BOOL_SLOW_WORD64
+# define CRYPTOPP_BOOL_SLOW_WORD64 0
+#endif
+
+const unsigned int WORD_SIZE = sizeof(word);
+const unsigned int WORD_BITS = WORD_SIZE * 8;
+
+NAMESPACE_END
+
+#endif  // CRYPTOPP_CONFIG_INT_H
-- 
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