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-rw-r--r--autoconf/tea/win/nmakehlp.c815
1 files changed, 815 insertions, 0 deletions
diff --git a/autoconf/tea/win/nmakehlp.c b/autoconf/tea/win/nmakehlp.c
new file mode 100644
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--- /dev/null
+++ b/autoconf/tea/win/nmakehlp.c
@@ -0,0 +1,815 @@
+/*
+ * ----------------------------------------------------------------------------
+ * 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>
+#ifdef _MSC_VER
+#pragma comment (lib, "user32.lib")
+#pragma comment (lib, "kernel32.lib")
+#endif
+#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(char **options, int count);
+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 int LocateDependency(const char *keyfile);
+static const char *GetVersionFromFile(const char *filename, const char *match, int numdots);
+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, ""};
+pipeinfo Err = {INVALID_HANDLE_VALUE, ""};
+
+/*
+ * exitcodes: 0 == no, 1 == yes, 2 == error
+ */
+
+int
+main(
+ int argc,
+ char *argv[])
+{
+ char msg[300];
+ DWORD dwWritten;
+ int chars;
+ const char *s;
+
+ /*
+ * 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> ?<mandatory 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], argc-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;
+ }
+ s = GetVersionFromFile(argv[2], argv[3], *(argv[1]+2) - '0');
+ if (s && *s) {
+ printf("%s\n", s);
+ return 0;
+ } else
+ return 1; /* Version not found. Return non-0 exit code */
+
+ 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]);
+
+ case 'L':
+ if (argc != 3) {
+ chars = snprintf(msg, sizeof(msg) - 1,
+ "usage: %s -L keypath\n"
+ "Emit the fully qualified path of directory containing keypath\n"
+ "exitcodes: 0 == success, 1 == not found, 2 == error\n", argv[0]);
+ WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
+ &dwWritten, NULL);
+ return 2;
+ }
+ return LocateDependency(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, (LPSTR)&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(
+ char **options,
+ int count)
+{
+ STARTUPINFO si;
+ PROCESS_INFORMATION pi;
+ SECURITY_ATTRIBUTES sa;
+ DWORD threadID;
+ char msg[300];
+ BOOL ok;
+ HANDLE hProcess, h, pipeThreads[2];
+ int i;
+ char cmdline[255];
+
+ 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.
+ */
+
+ for (i = 0; i < count; i++) {
+ lstrcat(cmdline, " \"");
+ lstrcat(cmdline, options[i]);
+ lstrcat(cmdline, "\"");
+ }
+
+ 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, (LPSTR)&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 ||
+ strstr(Out.buffer, "LNK4224") != NULL ||
+ strstr(Err.buffer, "LNK4224") != 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,
+ int numdots)
+{
+ 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, sizeof(szBuffer), fp) != NULL) {
+ LPSTR p, q;
+
+ p = strstr(szBuffer, match);
+ if (p != NULL) {
+ /*
+ * Skip to first digit after the match.
+ */
+
+ p += strlen(match);
+ while (*p && !isdigit((unsigned char)*p)) {
+ ++p;
+ }
+
+ /*
+ * Find ending whitespace.
+ */
+
+ q = p;
+ while (*q && (strchr("0123456789.ab", *q)) && (((!strchr(".ab", *q)
+ && !strchr("ab", q[-1])) || --numdots))) {
+ ++q;
+ }
+
+ *q = 0;
+ szResult = p;
+ 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 = (list_item_t *)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)
+{
+ static char szBuffer[1024], szCopy[1024];
+ 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, sizeof(szBuffer), sp) != NULL) {
+ unsigned char *ks, *ke, *vs, *ve;
+ ks = (unsigned char*)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, (char*)ks, (char*)vs);
+ }
+ fclose(sp);
+ }
+
+ /* debug: dump the list */
+#ifndef NDEBUG
+ {
+ 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, sizeof(szBuffer), 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("%s", szBuffer);
+ }
+
+ list_free(&substPtr);
+ }
+ fclose(fp);
+ return 0;
+}
+
+BOOL FileExists(LPCTSTR szPath)
+{
+#ifndef INVALID_FILE_ATTRIBUTES
+ #define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
+#endif
+ DWORD pathAttr = GetFileAttributes(szPath);
+ return (pathAttr != INVALID_FILE_ATTRIBUTES &&
+ !(pathAttr & FILE_ATTRIBUTE_DIRECTORY));
+}
+
+
+/*
+ * 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];
+
+ GetFullPathName(szPath, sizeof(szCwd)-1, szCwd, NULL);
+ printf("%s\n", szCwd);
+ return 0;
+}
+
+/*
+ * Implements LocateDependency for a single directory. See that command
+ * for an explanation.
+ * Returns 0 if found after printing the directory.
+ * Returns 1 if not found but no errors.
+ * Returns 2 on any kind of error
+ * Basically, these are used as exit codes for the process.
+ */
+static int LocateDependencyHelper(const char *dir, const char *keypath)
+{
+ HANDLE hSearch;
+ char path[MAX_PATH+1];
+ size_t dirlen;
+ int keylen, ret;
+ WIN32_FIND_DATA finfo;
+
+ if (dir == NULL || keypath == NULL)
+ return 2; /* Have no real error reporting mechanism into nmake */
+ dirlen = strlen(dir);
+ if ((dirlen + 3) > sizeof(path))
+ return 2;
+ strncpy(path, dir, dirlen);
+ strncpy(path+dirlen, "\\*", 3); /* Including terminating \0 */
+ keylen = strlen(keypath);
+
+#if 0 /* This function is not available in Visual C++ 6 */
+ /*
+ * Use numerics 0 -> FindExInfoStandard,
+ * 1 -> FindExSearchLimitToDirectories,
+ * as these are not defined in Visual C++ 6
+ */
+ hSearch = FindFirstFileEx(path, 0, &finfo, 1, NULL, 0);
+#else
+ hSearch = FindFirstFile(path, &finfo);
+#endif
+ if (hSearch == INVALID_HANDLE_VALUE)
+ return 1; /* Not found */
+
+ /* Loop through all subdirs checking if the keypath is under there */
+ ret = 1; /* Assume not found */
+ do {
+ int sublen;
+ /*
+ * We need to check it is a directory despite the
+ * FindExSearchLimitToDirectories in the above call. See SDK docs
+ */
+ if ((finfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
+ continue;
+ sublen = strlen(finfo.cFileName);
+ if ((dirlen+1+sublen+1+keylen+1) > sizeof(path))
+ continue; /* Path does not fit, assume not matched */
+ strncpy(path+dirlen+1, finfo.cFileName, sublen);
+ path[dirlen+1+sublen] = '\\';
+ strncpy(path+dirlen+1+sublen+1, keypath, keylen+1);
+ if (FileExists(path)) {
+ /* Found a match, print to stdout */
+ path[dirlen+1+sublen] = '\0';
+ QualifyPath(path);
+ ret = 0;
+ break;
+ }
+ } while (FindNextFile(hSearch, &finfo));
+ FindClose(hSearch);
+ return ret;
+}
+
+/*
+ * LocateDependency --
+ *
+ * Locates a dependency for a package.
+ * keypath - a relative path within the package directory
+ * that is used to confirm it is the correct directory.
+ * The search path for the package directory is currently only
+ * the parent and grandparent of the current working directory.
+ * If found, the command prints
+ * name_DIRPATH=<full path of located directory>
+ * and returns 0. If not found, does not print anything and returns 1.
+ */
+static int LocateDependency(const char *keypath)
+{
+ size_t i;
+ int ret;
+ static const char *paths[] = {"..", "..\\..", "..\\..\\.."};
+
+ for (i = 0; i < (sizeof(paths)/sizeof(paths[0])); ++i) {
+ ret = LocateDependencyHelper(paths[i], keypath);
+ if (ret == 0)
+ return ret;
+ }
+ return ret;
+}
+
+
+/*
+ * Local variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * indent-tabs-mode: t
+ * tab-width: 8
+ * End:
+ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-17 18:22:21 +0000