Remove use of the rand_s() function (added by [139081bef9f63c3e]) as it appears to cause issues with some third-party DLLs.

FossilOrigin-Name: 3a2793aa65727cbbf8c4678d478cf8fb02350f19ff98201934a984727368d64d

manifest

@@ -1,5 +1,5 @@
-C Fix\san\serror\sin\s[b22cdd67]\sthat\scan\scause\sa\snegative\sinfinity\sto\sbe\s(rarely)\nreported\sas\sa\spositive\sinfinity.
-D 2017-09-12T15:05:34.004
+C Remove\suse\sof\sthe\srand_s()\sfunction\s(added\sby\s[139081bef9f63c3e])\sas\sit\sappears\sto\scause\sissues\swith\ssome\sthird-party\sDLLs.
+D 2017-09-12T23:58:47.871
 F Makefile.in c644bbe8ebe4aae82ad6783eae6b6beea4c727b99ff97568b847ced5e2ac7afb
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc 6a7a74bf60ad395098c0bd175ab054cd65ef85d7f034198d52bcc4d9e5fb4c6b
@@ -442,7 +442,7 @@ F src/os.h 8e976e59eb4ca1c0fca6d35ee803e38951cb0343
 F src/os_common.h b2f4707a603e36811d9b1a13278bffd757857b85
 F src/os_setup.h 0dbaea40a7d36bf311613d31342e0b99e2536586
 F src/os_unix.c 489aa972ccc34f7b4770b891694b32101c59ddd4be4ef0ddd9a4da58c145c1a6
-F src/os_win.c 964165b66cde03abc72fe948198b01be608436894732eadb94c8720d2467f223
+F src/os_win.c 225432ab6512f63ab2f37eb76872f818b01f0483ba0bea04a7a1168be3070ea5
 F src/os_win.h 7b073010f1451abe501be30d12f6bc599824944a
 F src/pager.c 967168bba88d2dc790ed9618bd4ba7bfe475b67b521ef6da305a6425c592928f
 F src/pager.h 581698f2177e8bd4008fe4760898ce20b6133d1df22139b9101b5155f900df7a
@@ -463,7 +463,7 @@ F src/shell.c.in bb9720a8c5c98d3984b16ab7540e7142bcae959666ecf248bfc523a1d44220e
 F src/sqlite.h.in ab4f8a29d1580dfaeb6891fa1b83cff8229ba0daa56994707ceaca71495d9ab7
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h a1fd3aa82f967da436164e0728a7d6841651fd0c6e27b9044e0eb9f6c8462e47
-F src/sqliteInt.h f9ae3609a583aa51712083e1d5817f62c7d97c0a203036a9a62c439059e8258b
+F src/sqliteInt.h 2272cd09b7f137bb2423af589d636b5b741037db9b329d359c1ef6556fac5a4c
 F src/sqliteLimit.h 1513bfb7b20378aa0041e7022d04acb73525de35b80b252f1b83fedb4de6a76b
 F src/status.c 9737ed017279a9e0c5da748701c3c7bf1e8ae0dae459aad20dd64fcff97a7e35
 F src/table.c b46ad567748f24a326d9de40e5b9659f96ffff34
@@ -1653,7 +1653,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P b22cdd6734ecda2b2b9749668f353abc2660f192d6a40c5d266309d30e25695e
-R 39b328d722a14e00d87cd1b0274ba2b6
-U drh
-Z 7a920600be1c7fd6aaa5dec418f9fad6
+P 9780b23ca375de6a542516fbc03eb39d5a393ca577718fda231d0d0ccf3b1c7e
+R 342e5faaf3ce5ac225c0025f84f1d0f8
+U mistachkin
+Z ee0e295b03f3976f16bf7211fd8df318

manifest.uuid

@@ -1 +1 @@
-9780b23ca375de6a542516fbc03eb39d5a393ca577718fda231d0d0ccf3b1c7e
+3a2793aa65727cbbf8c4678d478cf8fb02350f19ff98201934a984727368d64d

src/os_win.c

@@ -5696,9 +5696,6 @@ static int winRandomness(sqlite3_vfs *pVfs, int nBuf, char *zBuf){
   EntropyGatherer e;
   UNUSED_PARAMETER(pVfs);
   memset(zBuf, 0, nBuf);
-#if defined(_MSC_VER) && _MSC_VER>=1400 && !SQLITE_OS_WINCE
-  rand_s((unsigned int*)zBuf); /* rand_s() is not available with MinGW */
-#endif /* defined(_MSC_VER) && _MSC_VER>=1400 */
   e.a = (unsigned char*)zBuf;
   e.na = nBuf;
   e.nXor = 0;

src/sqliteInt.h

@@ -50,14 +50,6 @@
 #  define SQLITE_TCLAPI
 #endif
 
-/*
-** Make sure that rand_s() is available on Windows systems with MSVC 2005
-** or higher.
-*/
-#if defined(_MSC_VER) && _MSC_VER>=1400
-#  define _CRT_RAND_S
-#endif
-
 /*
 ** Include the header file used to customize the compiler options for MSVC.
 ** This should be done first so that it can successfully prevent spurious