Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch

third_party/sqlite/src/autoconf/tea/win/nmakehlp.c

Index: third_party/sqlite/src/autoconf/tea/win/nmakehlp.c
diff --git a/third_party/sqlite/src/autoconf/tea/win/nmakehlp.c b/third_party/sqlite/src/autoconf/tea/win/nmakehlp.c
new file mode 100644
index 0000000000000000000000000000000000000000..2868857efd62776f0d3fc2c7d6b6c033b25cdc7a
--- /dev/null
+++ b/third_party/sqlite/src/autoconf/tea/win/nmakehlp.c
@@ -0,0 +1,694 @@
+/*
+ * ----------------------------------------------------------------------------
+ * nmakehlp.c --
+ *
+ *	This is used to fix limitations within nmake and the environment.
+ *
+ * Copyright (c) 2002 by David Gravereaux.
+ * Copyright (c) 2006 by Pat Thoyts
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ * ----------------------------------------------------------------------------
+ */
+
+#define _CRT_SECURE_NO_DEPRECATE
+#include <windows.h>
+#define NO_SHLWAPI_GDI
+#define NO_SHLWAPI_STREAM
+#define NO_SHLWAPI_REG
+#include <shlwapi.h>
+#pragma comment (lib, "user32.lib")
+#pragma comment (lib, "kernel32.lib")
+#pragma comment (lib, "shlwapi.lib")
+#include <stdio.h>
+#include <math.h>
+
+/*
+ * This library is required for x64 builds with _some_ versions of MSVC
+ */
+#if defined(_M_IA64) || defined(_M_AMD64)
+#if _MSC_VER >= 1400 && _MSC_VER < 1500
+#pragma comment(lib, "bufferoverflowU")
+#endif
+#endif
+
+/* ISO hack for dumb VC++ */
+#ifdef _MSC_VER
+#define   snprintf	_snprintf
+#endif
+
+
+
+/* protos */
+
+static int CheckForCompilerFeature(const char *option);
+static int CheckForLinkerFeature(const char *option);
+static int IsIn(const char *string, const char *substring);
+static int SubstituteFile(const char *substs, const char *filename);
+static int QualifyPath(const char *path);
+static const char *GetVersionFromFile(const char *filename, const char *match);
+static DWORD WINAPI ReadFromPipe(LPVOID args);
+
+/* globals */
+
+#define CHUNK	25
+#define STATICBUFFERSIZE    1000
+typedef struct {
+    HANDLE pipe;
+    char buffer[STATICBUFFERSIZE];
+} pipeinfo;
+
+pipeinfo Out = {INVALID_HANDLE_VALUE, '\0'};
+pipeinfo Err = {INVALID_HANDLE_VALUE, '\0'};
+
+/*
+ * exitcodes: 0 == no, 1 == yes, 2 == error
+ */
+
+int
+main(
+    int argc,
+    char *argv[])
+{
+    char msg[300];
+    DWORD dwWritten;
+    int chars;
+
+    /*
+     * Make sure children (cl.exe and link.exe) are kept quiet.
+     */
+
+    SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX);
+
+    /*
+     * Make sure the compiler and linker aren't effected by the outside world.
+     */
+
+    SetEnvironmentVariable("CL", "");
+    SetEnvironmentVariable("LINK", "");
+
+    if (argc > 1 && *argv[1] == '-') {
+	switch (*(argv[1]+1)) {
+	case 'c':
+	    if (argc != 3) {
+		chars = snprintf(msg, sizeof(msg) - 1,
+		        "usage: %s -c <compiler option>\n"
+			"Tests for whether cl.exe supports an option\n"
+			"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
+		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
+			&dwWritten, NULL);
+		return 2;
+	    }
+	    return CheckForCompilerFeature(argv[2]);
+	case 'l':
+	    if (argc != 3) {
+		chars = snprintf(msg, sizeof(msg) - 1,
+	       		"usage: %s -l <linker option>\n"
+			"Tests for whether link.exe supports an option\n"
+			"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
+		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
+			&dwWritten, NULL);
+		return 2;
+	    }
+	    return CheckForLinkerFeature(argv[2]);
+	case 'f':
+	    if (argc == 2) {
+		chars = snprintf(msg, sizeof(msg) - 1,
+			"usage: %s -f <string> <substring>\n"
+			"Find a substring within another\n"
+			"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
+		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
+			&dwWritten, NULL);
+		return 2;
+	    } else if (argc == 3) {
+		/*
+		 * If the string is blank, there is no match.
+		 */
+
+		return 0;
+	    } else {
+		return IsIn(argv[2], argv[3]);
+	    }
+	case 's':
+	    if (argc == 2) {
+		chars = snprintf(msg, sizeof(msg) - 1,
+			"usage: %s -s <substitutions file> <file>\n"
+			"Perform a set of string map type substutitions on a file\n"
+			"exitcodes: 0\n",
+			argv[0]);
+		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
+			&dwWritten, NULL);
+		return 2;
+	    }
+	    return SubstituteFile(argv[2], argv[3]);
+	case 'V':
+	    if (argc != 4) {
+		chars = snprintf(msg, sizeof(msg) - 1,
+		    "usage: %s -V filename matchstring\n"
+		    "Extract a version from a file:\n"
+		    "eg: pkgIndex.tcl \"package ifneeded http\"",
+		    argv[0]);
+		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
+		    &dwWritten, NULL);
+		return 0;
+	    }
+	    printf("%s\n", GetVersionFromFile(argv[2], argv[3]));
+	    return 0;
+	case 'Q':
+	    if (argc != 3) {
+		chars = snprintf(msg, sizeof(msg) - 1,
+		    "usage: %s -Q path\n"
+		    "Emit the fully qualified path\n"
+		    "exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
+		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
+		    &dwWritten, NULL);
+		return 2;
+	    }
+	    return QualifyPath(argv[2]);
+	}
+    }
+    chars = snprintf(msg, sizeof(msg) - 1,
+	    "usage: %s -c|-f|-l|-Q|-s|-V ...\n"
+	    "This is a little helper app to equalize shell differences between WinNT and\n"
+	    "Win9x and get nmake.exe to accomplish its job.\n",
+	    argv[0]);
+    WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars, &dwWritten, NULL);
+    return 2;
+}
+
+static int
+CheckForCompilerFeature(
+    const char *option)
+{
+    STARTUPINFO si;
+    PROCESS_INFORMATION pi;
+    SECURITY_ATTRIBUTES sa;
+    DWORD threadID;
+    char msg[300];
+    BOOL ok;
+    HANDLE hProcess, h, pipeThreads[2];
+    char cmdline[100];
+
+    hProcess = GetCurrentProcess();
+
+    ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
+    ZeroMemory(&si, sizeof(STARTUPINFO));
+    si.cb = sizeof(STARTUPINFO);
+    si.dwFlags   = STARTF_USESTDHANDLES;
+    si.hStdInput = INVALID_HANDLE_VALUE;
+
+    ZeroMemory(&sa, sizeof(SECURITY_ATTRIBUTES));
+    sa.nLength = sizeof(SECURITY_ATTRIBUTES);
+    sa.lpSecurityDescriptor = NULL;
+    sa.bInheritHandle = FALSE;
+
+    /*
+     * Create a non-inheritible pipe.
+     */
+
+    CreatePipe(&Out.pipe, &h, &sa, 0);
+
+    /*
+     * Dupe the write side, make it inheritible, and close the original.
+     */
+
+    DuplicateHandle(hProcess, h, hProcess, &si.hStdOutput, 0, TRUE,
+	    DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
+
+    /*
+     * Same as above, but for the error side.
+     */
+
+    CreatePipe(&Err.pipe, &h, &sa, 0);
+    DuplicateHandle(hProcess, h, hProcess, &si.hStdError, 0, TRUE,
+	    DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
+
+    /*
+     * Base command line.
+     */
+
+    lstrcpy(cmdline, "cl.exe -nologo -c -TC -Zs -X -Fp.\\_junk.pch ");
+
+    /*
+     * Append our option for testing
+     */
+
+    lstrcat(cmdline, option);
+
+    /*
+     * Filename to compile, which exists, but is nothing and empty.
+     */
+
+    lstrcat(cmdline, " .\\nul");
+
+    ok = CreateProcess(
+	    NULL,	    /* Module name. */
+	    cmdline,	    /* Command line. */
+	    NULL,	    /* Process handle not inheritable. */
+	    NULL,	    /* Thread handle not inheritable. */
+	    TRUE,	    /* yes, inherit handles. */
+	    DETACHED_PROCESS, /* No console for you. */
+	    NULL,	    /* Use parent's environment block. */
+	    NULL,	    /* Use parent's starting directory. */
+	    &si,	    /* Pointer to STARTUPINFO structure. */
+	    &pi);	    /* Pointer to PROCESS_INFORMATION structure. */
+
+    if (!ok) {
+	DWORD err = GetLastError();
+	int chars = snprintf(msg, sizeof(msg) - 1,
+		"Tried to launch: \"%s\", but got error [%u]: ", cmdline, err);
+
+	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS|
+		FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPVOID)&msg[chars],
+		(300-chars), 0);
+	WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, lstrlen(msg), &err,NULL);
+	return 2;
+    }
+
+    /*
+     * Close our references to the write handles that have now been inherited.
+     */
+
+    CloseHandle(si.hStdOutput);
+    CloseHandle(si.hStdError);
+
+    WaitForInputIdle(pi.hProcess, 5000);
+    CloseHandle(pi.hThread);
+
+    /*
+     * Start the pipe reader threads.
+     */
+
+    pipeThreads[0] = CreateThread(NULL, 0, ReadFromPipe, &Out, 0, &threadID);
+    pipeThreads[1] = CreateThread(NULL, 0, ReadFromPipe, &Err, 0, &threadID);
+
+    /*
+     * Block waiting for the process to end.
+     */
+
+    WaitForSingleObject(pi.hProcess, INFINITE);
+    CloseHandle(pi.hProcess);
+
+    /*
+     * Wait for our pipe to get done reading, should it be a little slow.
+     */
+
+    WaitForMultipleObjects(2, pipeThreads, TRUE, 500);
+    CloseHandle(pipeThreads[0]);
+    CloseHandle(pipeThreads[1]);
+
+    /*
+     * Look for the commandline warning code in both streams.
+     *  - in MSVC 6 & 7 we get D4002, in MSVC 8 we get D9002.
+     */
+
+    return !(strstr(Out.buffer, "D4002") != NULL
+             || strstr(Err.buffer, "D4002") != NULL
+             || strstr(Out.buffer, "D9002") != NULL
+             || strstr(Err.buffer, "D9002") != NULL
+             || strstr(Out.buffer, "D2021") != NULL
+             || strstr(Err.buffer, "D2021") != NULL);
+}
+
+static int
+CheckForLinkerFeature(
+    const char *option)
+{
+    STARTUPINFO si;
+    PROCESS_INFORMATION pi;
+    SECURITY_ATTRIBUTES sa;
+    DWORD threadID;
+    char msg[300];
+    BOOL ok;
+    HANDLE hProcess, h, pipeThreads[2];
+    char cmdline[100];
+
+    hProcess = GetCurrentProcess();
+
+    ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
+    ZeroMemory(&si, sizeof(STARTUPINFO));
+    si.cb = sizeof(STARTUPINFO);
+    si.dwFlags   = STARTF_USESTDHANDLES;
+    si.hStdInput = INVALID_HANDLE_VALUE;
+
+    ZeroMemory(&sa, sizeof(SECURITY_ATTRIBUTES));
+    sa.nLength = sizeof(SECURITY_ATTRIBUTES);
+    sa.lpSecurityDescriptor = NULL;
+    sa.bInheritHandle = TRUE;
+
+    /*
+     * Create a non-inheritible pipe.
+     */
+
+    CreatePipe(&Out.pipe, &h, &sa, 0);
+
+    /*
+     * Dupe the write side, make it inheritible, and close the original.
+     */
+
+    DuplicateHandle(hProcess, h, hProcess, &si.hStdOutput, 0, TRUE,
+	    DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
+
+    /*
+     * Same as above, but for the error side.
+     */
+
+    CreatePipe(&Err.pipe, &h, &sa, 0);
+    DuplicateHandle(hProcess, h, hProcess, &si.hStdError, 0, TRUE,
+	    DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
+
+    /*
+     * Base command line.
+     */
+
+    lstrcpy(cmdline, "link.exe -nologo ");
+
+    /*
+     * Append our option for testing.
+     */
+
+    lstrcat(cmdline, option);
+
+    ok = CreateProcess(
+	    NULL,	    /* Module name. */
+	    cmdline,	    /* Command line. */
+	    NULL,	    /* Process handle not inheritable. */
+	    NULL,	    /* Thread handle not inheritable. */
+	    TRUE,	    /* yes, inherit handles. */
+	    DETACHED_PROCESS, /* No console for you. */
+	    NULL,	    /* Use parent's environment block. */
+	    NULL,	    /* Use parent's starting directory. */
+	    &si,	    /* Pointer to STARTUPINFO structure. */
+	    &pi);	    /* Pointer to PROCESS_INFORMATION structure. */
+
+    if (!ok) {
+	DWORD err = GetLastError();
+	int chars = snprintf(msg, sizeof(msg) - 1,
+		"Tried to launch: \"%s\", but got error [%u]: ", cmdline, err);
+
+	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS|
+		FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPVOID)&msg[chars],
+		(300-chars), 0);
+	WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, lstrlen(msg), &err,NULL);
+	return 2;
+    }
+
+    /*
+     * Close our references to the write handles that have now been inherited.
+     */
+
+    CloseHandle(si.hStdOutput);
+    CloseHandle(si.hStdError);
+
+    WaitForInputIdle(pi.hProcess, 5000);
+    CloseHandle(pi.hThread);
+
+    /*
+     * Start the pipe reader threads.
+     */
+
+    pipeThreads[0] = CreateThread(NULL, 0, ReadFromPipe, &Out, 0, &threadID);
+    pipeThreads[1] = CreateThread(NULL, 0, ReadFromPipe, &Err, 0, &threadID);
+
+    /*
+     * Block waiting for the process to end.
+     */
+
+    WaitForSingleObject(pi.hProcess, INFINITE);
+    CloseHandle(pi.hProcess);
+
+    /*
+     * Wait for our pipe to get done reading, should it be a little slow.
+     */
+
+    WaitForMultipleObjects(2, pipeThreads, TRUE, 500);
+    CloseHandle(pipeThreads[0]);
+    CloseHandle(pipeThreads[1]);
+
+    /*
+     * Look for the commandline warning code in the stderr stream.
+     */
+
+    return !(strstr(Out.buffer, "LNK1117") != NULL ||
+	    strstr(Err.buffer, "LNK1117") != NULL ||
+	    strstr(Out.buffer, "LNK4044") != NULL ||
+	    strstr(Err.buffer, "LNK4044") != NULL);
+}
+
+static DWORD WINAPI
+ReadFromPipe(
+    LPVOID args)
+{
+    pipeinfo *pi = (pipeinfo *) args;
+    char *lastBuf = pi->buffer;
+    DWORD dwRead;
+    BOOL ok;
+
+  again:
+    if (lastBuf - pi->buffer + CHUNK > STATICBUFFERSIZE) {
+	CloseHandle(pi->pipe);
+	return (DWORD)-1;
+    }
+    ok = ReadFile(pi->pipe, lastBuf, CHUNK, &dwRead, 0L);
+    if (!ok || dwRead == 0) {
+	CloseHandle(pi->pipe);
+	return 0;
+    }
+    lastBuf += dwRead;
+    goto again;
+
+    return 0;  /* makes the compiler happy */
+}
+
+static int
+IsIn(
+    const char *string,
+    const char *substring)
+{
+    return (strstr(string, substring) != NULL);
+}
+
+/*
+ * GetVersionFromFile --
+ * 	Looks for a match string in a file and then returns the version
+ * 	following the match where a version is anything acceptable to
+ * 	package provide or package ifneeded.
+ */
+
+static const char *
+GetVersionFromFile(
+    const char *filename,
+    const char *match)
+{
+    size_t cbBuffer = 100;
+    static char szBuffer[100];
+    char *szResult = NULL;
+    FILE *fp = fopen(filename, "rt");
+
+    if (fp != NULL) {
+	/*
+	 * Read data until we see our match string.
+	 */
+
+	while (fgets(szBuffer, cbBuffer, fp) != NULL) {
+	    LPSTR p, q;
+
+	    p = strstr(szBuffer, match);
+	    if (p != NULL) {
+		/*
+		 * Skip to first digit.
+		 */
+
+		while (*p && !isdigit(*p)) {
+		    ++p;
+		}
+
+		/*
+		 * Find ending whitespace.
+		 */
+
+		q = p;
+		while (*q && (isalnum(*q) || *q == '.')) {
+		    ++q;
+		}
+
+		memcpy(szBuffer, p, q - p);
+		szBuffer[q-p] = 0;
+		szResult = szBuffer;
+		break;
+	    }
+	}
+	fclose(fp);
+    }
+    return szResult;
+}
+
+/*
+ * List helpers for the SubstituteFile function
+ */
+
+typedef struct list_item_t {
+    struct list_item_t *nextPtr;
+    char * key;
+    char * value;
+} list_item_t;
+
+/* insert a list item into the list (list may be null) */
+static list_item_t *
+list_insert(list_item_t **listPtrPtr, const char *key, const char *value)
+{
+    list_item_t *itemPtr = malloc(sizeof(list_item_t));
+    if (itemPtr) {
+	itemPtr->key = strdup(key);
+	itemPtr->value = strdup(value);
+	itemPtr->nextPtr = NULL;
+
+	while(*listPtrPtr) {
+	    listPtrPtr = &(*listPtrPtr)->nextPtr;
+	}
+	*listPtrPtr = itemPtr;
+    }
+    return itemPtr;
+}
+
+static void
+list_free(list_item_t **listPtrPtr)
+{
+    list_item_t *tmpPtr, *listPtr = *listPtrPtr;
+    while (listPtr) {
+	tmpPtr = listPtr;
+	listPtr = listPtr->nextPtr;
+	free(tmpPtr->key);
+	free(tmpPtr->value);
+	free(tmpPtr);
+    }
+}
+
+/*
+ * SubstituteFile --
+ *	As windows doesn't provide anything useful like sed and it's unreliable
+ *	to use the tclsh you are building against (consider x-platform builds -
+ *	eg compiling AMD64 target from IX86) we provide a simple substitution
+ *	option here to handle autoconf style substitutions.
+ *	The substitution file is whitespace and line delimited. The file should
+ *	consist of lines matching the regular expression:
+ *	  \s*\S+\s+\S*$
+ *
+ *	Usage is something like:
+ *	  nmakehlp -S << $** > $@
+ *        @PACKAGE_NAME@ $(PACKAGE_NAME)
+ *        @PACKAGE_VERSION@ $(PACKAGE_VERSION)
+ *        <<
+ */
+
+static int
+SubstituteFile(
+    const char *substitutions,
+    const char *filename)
+{
+    size_t cbBuffer = 1024;
+    static char szBuffer[1024], szCopy[1024];
+    char *szResult = NULL;
+    list_item_t *substPtr = NULL;
+    FILE *fp, *sp;
+
+    fp = fopen(filename, "rt");
+    if (fp != NULL) {
+
+	/*
+	 * Build a list of substutitions from the first filename
+	 */
+
+	sp = fopen(substitutions, "rt");
+	if (sp != NULL) {
+	    while (fgets(szBuffer, cbBuffer, sp) != NULL) {
+		char *ks, *ke, *vs, *ve;
+		ks = szBuffer;
+		while (ks && *ks && isspace(*ks)) ++ks;
+		ke = ks;
+		while (ke && *ke && !isspace(*ke)) ++ke;
+		vs = ke;
+		while (vs && *vs && isspace(*vs)) ++vs;
+		ve = vs;
+		while (ve && *ve && !(*ve == '\r' || *ve == '\n')) ++ve;
+		*ke = 0, *ve = 0;
+		list_insert(&substPtr, ks, vs);
+	    }
+	    fclose(sp);
+	}
+
+	/* debug: dump the list */
+#ifdef _DEBUG
+	{
+	    int n = 0;
+	    list_item_t *p = NULL;
+	    for (p = substPtr; p != NULL; p = p->nextPtr, ++n) {
+		fprintf(stderr, "% 3d '%s' => '%s'\n", n, p->key, p->value);
+	    }
+	}
+#endif
+	
+	/*
+	 * Run the substitutions over each line of the input
+	 */
+	
+	while (fgets(szBuffer, cbBuffer, fp) != NULL) {
+	    list_item_t *p = NULL;
+	    for (p = substPtr; p != NULL; p = p->nextPtr) {
+		char *m = strstr(szBuffer, p->key);
+		if (m) {
+		    char *cp, *op, *sp;
+		    cp = szCopy;
+		    op = szBuffer;
+		    while (op != m) *cp++ = *op++;
+		    sp = p->value;
+		    while (sp && *sp) *cp++ = *sp++;
+		    op += strlen(p->key);
+		    while (*op) *cp++ = *op++;
+		    *cp = 0;
+		    memcpy(szBuffer, szCopy, sizeof(szCopy));
+		}
+	    }
+	    printf(szBuffer);
+	}
+	
+	list_free(&substPtr);
+    }
+    fclose(fp);
+    return 0;
+}
+
+/*
+ * QualifyPath --
+ *
+ *	This composes the current working directory with a provided path
+ *	and returns the fully qualified and normalized path.
+ *	Mostly needed to setup paths for testing.
+ */
+
+static int
+QualifyPath(
+    const char *szPath)
+{
+    char szCwd[MAX_PATH + 1];
+    char szTmp[MAX_PATH + 1];
+    char *p;
+    GetCurrentDirectory(MAX_PATH, szCwd);
+    while ((p = strchr(szPath, '/')) && *p)
+	*p = '\\';
+    PathCombine(szTmp, szCwd, szPath);
+    PathCanonicalize(szCwd, szTmp);
+    printf("%s\n", szCwd);
+    return 0;
+}
+
+/*
+ * Local variables:
+ *   mode: c
+ *   c-basic-offset: 4
+ *   fill-column: 78
+ *   indent-tabs-mode: t
+ *   tab-width: 8
+ * End:
+ */