Add missing make_buildinfo.c.
diff --git a/PCbuild/make_buildinfo.c b/PCbuild/make_buildinfo.c
new file mode 100644
index 0000000..ca2db9f
--- /dev/null
+++ b/PCbuild/make_buildinfo.c
@@ -0,0 +1,87 @@
+#include <windows.h>

+#include <sys/types.h>

+#include <sys/stat.h>

+#include <stdio.h>

+

+/* This file creates the getbuildinfo.o object, by first

+   invoking subwcrev.exe (if found), and then invoking cl.exe.

+   As a side effect, it might generate PCBuild\getbuildinfo2.c

+   also. If this isn't a subversion checkout, or subwcrev isn't

+   found, it compiles ..\\Modules\\getbuildinfo.c instead.

+

+   Currently, subwcrev.exe is found from the registry entries

+   of TortoiseSVN.

+

+   No attempt is made to place getbuildinfo.o into the proper

+   binary directory. This isn't necessary, as this tool is

+   invoked as a pre-link step for pythoncore, so that overwrites

+   any previous getbuildinfo.o.

+

+*/

+

+int make_buildinfo2()

+{

+	struct _stat st;

+	HKEY hTortoise;

+	char command[500];

+	DWORD type, size;

+	if (_stat(".svn", &st) < 0)

+		return 0;

+	if (RegOpenKey(HKEY_LOCAL_MACHINE, "Software\\TortoiseSVN", &hTortoise) != ERROR_SUCCESS &&

+	    RegOpenKey(HKEY_CURRENT_USER, "Software\\TortoiseSVN", &hTortoise) != ERROR_SUCCESS)

+		/* Tortoise not installed */

+		return 0;

+	size = sizeof(command);

+	if (RegQueryValueEx(hTortoise, "Directory", 0, &type,  command, &size) != ERROR_SUCCESS ||

+	    type != REG_SZ)

+		/* Registry corrupted */

+		return 0;

+	strcat(command, "bin\\subwcrev.exe");

+	if (_stat(command, &st) < 0)

+		/* subwcrev.exe not part of the release */

+		return 0;

+	strcat(command, " .. ..\\Modules\\getbuildinfo.c getbuildinfo2.c");

+	puts(command); fflush(stdout);

+	if (system(command) < 0)

+		return 0;

+	return 1;

+}

+

+int main(int argc, char*argv[])

+{

+	char command[500] = "cl.exe -c -D_WIN32 -DUSE_DL_EXPORT -D_WINDOWS -DWIN32 -D_WINDLL ";

+	int do_unlink, result;

+	if (argc != 2) {

+		fprintf(stderr, "make_buildinfo $(ConfigurationName)\n");

+		return EXIT_FAILURE;

+	}

+	if (strcmp(argv[1], "Release") == 0) {

+		strcat(command, "-MD ");

+		//strcpy(targetdir, "x86-temp-debug");

+	}

+	else if (strcmp(argv[1], "Debug") == 0) {

+		strcat(command, "-D_DEBUG -MDd ");

+		//strcpy(targetdir, "x86-temp-release");

+	}

+	else if (strcmp(argv[1], "ReleaseItanium")) {

+		strcat(command, "-MD ");

+		//strcpy(targetdir, "ia64-temp-release");

+	}

+	else {

+		fprintf(stderr, "unsupported configuration %s\n", argv[1]);

+		return EXIT_FAILURE;

+	}

+

+	if ((do_unlink = make_buildinfo2()))

+		strcat(command, "getbuildinfo2.c -DSUBWCREV ");

+	else

+		strcat(command, "..\\Modules\\getbuildinfo.c");

+	strcat(command, " -Fogetbuildinfo.o -I..\\Include -I..\\PC");

+	puts(command); fflush(stdout);

+	result = system(command);

+	if (do_unlink)

+		unlink("getbuildinfo2.c");

+	if (result < 0)

+		return EXIT_FAILURE;

+	return 0;

+}
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