X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=Xserver%2Fconfig%2Fimake%2Fimake.c;fp=Xserver%2Fconfig%2Fimake%2Fimake.c;h=ced00961d4db645be3105b74cc0a2b80fb88e1e6;hb=b6e6afccf37f4ad0515ef2a698f714fdf1bf23b3;hp=0000000000000000000000000000000000000000;hpb=e3340a110a3b01756b8e67531395a33b40a17d37;p=rdpsrv

diff --git a/Xserver/config/imake/imake.c b/Xserver/config/imake/imake.c
new file mode 100644
index 0000000..ced0096
--- /dev/null
+++ b/Xserver/config/imake/imake.c
@@ -0,0 +1,1509 @@
+/* $TOG: imake.c /main/97 1997/06/20 20:23:51 kaleb $ */
+
+/***************************************************************************
+ *                                                                         *
+ *                                Porting Note                             *
+ *                                                                         *
+ * Add the value of BOOTSTRAPCFLAGS to the cpp_argv table so that it will  *
+ * be passed to the template file.                                         *
+ *                                                                         *
+ ***************************************************************************/
+/* $XFree86: xc/config/imake/imake.c,v 3.13.2.16 1998/03/01 00:34:54 dawes Exp $ */
+
+/*
+ * 
+Copyright (c) 1985, 1986, 1987  X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from the X Consortium.
+ * 
+ * Original Author:
+ *	Todd Brunhoff
+ *	Tektronix, inc.
+ *	While a guest engineer at Project Athena, MIT
+ *
+ * imake: the include-make program.
+ *
+ * Usage: imake [-Idir] [-Ddefine] [-T template] [-f imakefile ] [-C Imakefile.c ] [-s] [-e] [-v] [make flags]
+ *
+ * Imake takes a template file (Imake.tmpl) and a prototype (Imakefile)
+ * and runs cpp on them producing a Makefile.  It then optionally runs make
+ * on the Makefile.
+ * Options:
+ *		-D	define.  Same as cpp -D argument.
+ *		-I	Include directory.  Same as cpp -I argument.
+ *		-T	template.  Designate a template other
+ *			than Imake.tmpl
+ *		-f	specify the Imakefile file
+ *		-C	specify the name to use instead of Imakefile.c
+ *		-s[F]	show.  Show the produced makefile on the standard
+ *			output.  Make is not run is this case.  If a file
+ *			argument is provided, the output is placed there.
+ *              -e[F]   execute instead of show; optionally name Makefile F
+ *		-v	verbose.  Show the make command line executed.
+ *
+ * Environment variables:
+ *		
+ *		IMAKEINCLUDE	Include directory to use in addition to "."
+ *		IMAKECPP	Cpp to use instead of /lib/cpp
+ *		IMAKEMAKE	make program to use other than what is
+ *				found by searching the $PATH variable.
+ * Other features:
+ *	imake reads the entire cpp output into memory and then scans it
+ *	for occurences of "@@".  If it encounters them, it replaces it with
+ *	a newline.  It also trims any trailing white space on output lines
+ *	(because make gets upset at them).  This helps when cpp expands
+ *	multi-line macros but you want them to appear on multiple lines.
+ *	It also changes occurences of "XCOMM" to "#", to avoid problems
+ *	with treating commands as invalid preprocessor commands.
+ *
+ *	The macros MAKEFILE and MAKE are provided as macros
+ *	to make.  MAKEFILE is set to imake's makefile (not the constructed,
+ *	preprocessed one) and MAKE is set to argv[0], i.e. the name of
+ *	the imake program.
+ *
+ * Theory of operation:
+ *   1. Determine the name of the imakefile from the command line (-f)
+ *	or from the content of the current directory (Imakefile or imakefile).
+ *	Call this <imakefile>.  This gets added to the arguments for
+ *	make as MAKEFILE=<imakefile>.
+ *   2. Determine the name of the template from the command line (-T)
+ *	or the default, Imake.tmpl.  Call this <template>
+ *   3. Determine the name of the imakeCfile from the command line (-C)
+ *	or the default, Imakefile.c.  Call this <imakeCfile>
+ *   4. Store lines of input into <imakeCfile>:
+ *	- A c-style comment header (see ImakefileCHeader below), used
+ *	  to recognize temporary files generated by imake.
+ *	- If DEFAULT_OS_NAME is defined, format the utsname struct and
+ *	  call the result <defaultOsName>.  Add:
+ *		#define DefaultOSName <defaultOsName>
+ *	- If DEFAULT_OS_MAJOR_REV is defined, format the utsname struct
+ *	  and call the result <defaultOsMajorVersion>.  Add:
+ *		#define DefaultOSMajorVersion <defaultOsMajorVersion>
+ *	- If DEFAULT_OS_MINOR_REV is defined, format the utsname struct
+ *	  and call the result <defaultOsMinorVersion>.  Add:
+ *		#define DefaultOSMinorVersion <defaultOsMinorVersion>
+ *	- If DEFAULT_OS_TEENY_REV is defined, format the utsname struct
+ *	  and call the result <defaultOsTeenyVersion>.  Add:
+ *		#define DefaultOSTeenyVersion <defaultOsTeenyVersion>
+ *      - If DEFAULT_MACHINE_ARCITECTURE is defined, format the utsname struct
+ *        and define the corresponding macro. (For example on the amiga,
+ *        this will define amiga in addition to m68k).    
+ *	- If the file "localdefines" is readable in the current
+ *	  directory, print a warning message to stderr and add: 
+ *		#define IMAKE_LOCAL_DEFINES	"localdefines"
+ *		#include IMAKE_LOCAL_DEFINES
+ *	- If the file "admindefines" is readable in the current
+ *	  directory, print a warning message to stderr and add: 
+ *		#define IMAKE_ADMIN_DEFINES	"admindefines"
+ *		#include IMAKE_ADMIN_DEFINES
+ *	- The following lines:
+ *		#define INCLUDE_IMAKEFILE	< <imakefile> >
+ *		#define IMAKE_TEMPLATE		" <template> "
+ *		#include IMAKE_TEMPLATE
+ *	- If the file "adminmacros" is readable in the current
+ *	  directory, print a warning message to stderr and add: 
+ *		#define IMAKE_ADMIN_MACROS	"adminmacros"
+ *		#include IMAKE_ADMIN_MACROS
+ *	- If the file "localmacros" is readable in the current
+ *	  directory, print a warning message to stderr and add: 
+ *		#define IMAKE_LOCAL_MACROS	"localmacros"
+ *		#include IMAKE_LOCAL_MACROS
+ *   5. Start up cpp and provide it with this file.
+ *	Note that the define for INCLUDE_IMAKEFILE is intended for
+ *	use in the template file.  This implies that the imake is
+ *	useless unless the template file contains at least the line
+ *		#include INCLUDE_IMAKEFILE
+ *   6. Gather the output from cpp, and clean it up, expanding @@ to
+ *	newlines, stripping trailing white space, cpp control lines,
+ *	and extra blank lines, and changing XCOMM to #.  This cleaned
+ *	output is placed in a new file, default "Makefile", but can
+ *	be specified with -s or -e options.
+ *   7. Optionally start up make on the resulting file.
+ *
+ * The design of the template makefile should therefore be:
+ *	<set global macros like CFLAGS, etc.>
+ *	<include machine dependent additions>
+ *	#include INCLUDE_IMAKEFILE
+ *	<add any global targets like 'clean' and long dependencies>
+ */
+#if defined(__FreeBSD__) || defined(__NetBSD__)
+/* This needs to be before _POSIX_SOURCE gets defined */
+# include <sys/param.h>
+# include <sys/types.h>
+# include <sys/sysctl.h>
+#endif
+#include <stdio.h>
+#include "Xosdefs.h"
+#ifndef X_NOT_STDC_ENV
+#include <string.h>
+#endif
+#include <ctype.h>
+#ifdef WIN32
+# include "Xw32defs.h"
+#endif
+#ifndef X_NOT_POSIX
+# ifndef _POSIX_SOURCE
+#  define _POSIX_SOURCE
+# endif
+#endif
+#include <sys/types.h>
+#include <fcntl.h>
+#ifdef X_NOT_POSIX
+# ifndef WIN32
+#  include <sys/file.h>
+# endif
+#else
+# include <unistd.h>
+#endif
+#ifdef ISC
+# include <unistd.h>
+#endif
+#if defined(X_NOT_POSIX) || defined(_POSIX_SOURCE)
+# include <signal.h>
+#else
+# define _POSIX_SOURCE
+# include <signal.h>
+# undef _POSIX_SOURCE
+#endif
+#if !defined(SIGCHLD) && defined(SIGCLD)
+# define SIGCHLD		SIGCLD
+#endif
+#include <sys/stat.h>
+#ifndef X_NOT_POSIX
+# ifdef _POSIX_SOURCE
+#  ifdef SCO325
+#   include <sys/procset.h>
+#   include <sys/siginfo.h>
+#  endif
+#  include <sys/wait.h>
+# else
+#  define _POSIX_SOURCE
+#  include <sys/wait.h>
+#  undef _POSIX_SOURCE
+# endif
+# define waitCode(w)	WEXITSTATUS(w)
+# define waitSig(w)	WTERMSIG(w)
+typedef int		waitType;
+#else /* X_NOT_POSIX */
+# ifdef SYSV
+#  define waitCode(w)	(((w) >> 8) & 0x7f)
+#  define waitSig(w)	((w) & 0xff)
+typedef int		waitType;
+# else /* SYSV */
+#  ifdef WIN32
+#   include <process.h>
+typedef int		waitType;
+#  else
+#   include <sys/wait.h>
+#   define waitCode(w)	((w).w_T.w_Retcode)
+#   define waitSig(w)	((w).w_T.w_Termsig)
+typedef union wait	waitType;
+#  endif
+# endif
+# ifndef WIFSIGNALED
+#  define WIFSIGNALED(w) waitSig(w)
+# endif
+# ifndef WIFEXITED
+#  define WIFEXITED(w) waitCode(w)
+# endif
+#endif /* X_NOT_POSIX */
+#ifndef X_NOT_STDC_ENV
+# include <stdlib.h>
+#else
+char *malloc(), *realloc();
+void exit();
+#endif
+#if defined(macII) && !defined(__STDC__)  /* stdlib.h fails to define these */
+char *malloc(), *realloc();
+#endif /* macII */
+#ifdef X_NOT_STDC_ENV
+extern char	*getenv();
+#endif
+#include <errno.h>
+#ifdef X_NOT_STDC_ENV
+extern int	errno;
+#endif
+#ifdef __minix_vmd
+#define USE_FREOPEN		1
+#endif
+
+#if !(defined(X_NOT_STDC_ENV) || (defined(sun) && !defined(SVR4)) || defined(macII))
+#define USE_STRERROR		1
+#endif
+#ifdef __EMX__
+#define USE_STRERROR		1
+#endif
+#ifndef WIN32
+#include <sys/utsname.h>
+#endif
+#ifndef SYS_NMLN
+# ifdef _SYS_NMLN
+#  define SYS_NMLN _SYS_NMLN
+# else
+#  define SYS_NMLN 257
+# endif
+#endif
+#ifdef linux
+#include <limits.h>
+#endif
+/* 
+ * is strstr() in <strings.h> on X_NOT_STDC_ENV? 
+ * are there any X_NOT_STDC_ENV machines left in the world?
+ */
+#include <string.h>
+#include "imakemdep.h"
+
+/*
+ * This define of strerror is copied from (and should be identical to)
+ * Xos.h, which we don't want to include here for bootstrapping reasons.
+ */
+#ifndef USE_STRERROR
+# ifndef strerror
+extern char *sys_errlist[];
+extern int sys_nerr;
+#  define strerror(n) \
+    (((n) >= 0 && (n) < sys_nerr) ? sys_errlist[n] : "unknown error")
+# endif
+#endif
+
+#define	TRUE		1
+#define	FALSE		0
+
+#ifdef FIXUP_CPP_WHITESPACE
+int	InRule = FALSE;
+# ifdef INLINE_SYNTAX
+int	InInline = 0;
+# endif
+#endif
+#ifdef MAGIC_MAKE_VARS
+int xvariable = 0;
+int xvariables[10];
+#endif
+
+/*
+ * Some versions of cpp reduce all tabs in macro expansion to a single
+ * space.  In addition, the escaped newline may be replaced with a
+ * space instead of being deleted.  Blech.
+ */
+#ifdef FIXUP_CPP_WHITESPACE
+void KludgeOutputLine(), KludgeResetRule();
+#else
+# define KludgeOutputLine(arg)
+# define KludgeResetRule()
+#endif
+
+typedef	unsigned char	boolean;
+
+#ifdef USE_CC_E
+# ifndef DEFAULT_CC
+#  define DEFAULT_CC "cc"
+# endif
+#else
+# ifndef DEFAULT_CPP
+#  ifdef CPP_PROGRAM
+#   define DEFAULT_CPP CPP_PROGRAM
+#  else
+#   define DEFAULT_CPP "/lib/cpp"
+#  endif
+# endif
+#endif
+
+char *cpp = NULL;
+
+char	*tmpMakefile    = "/tmp/Imf.XXXXXX";
+char	*tmpImakefile    = "/tmp/IIf.XXXXXX";
+char	*make_argv[ ARGUMENTS ] = {
+#ifdef WIN32
+    "nmake"
+#else
+    "make"
+#endif
+};
+
+int	make_argindex;
+int	cpp_argindex;
+char	*Imakefile = NULL;
+char	*Makefile = "Makefile";
+char	*Template = "Imake.tmpl";
+char	*ImakefileC = "Imakefile.c";
+boolean haveImakefileC = FALSE;
+char	*cleanedImakefile = NULL;
+char	*program;
+char	*FindImakefile();
+char	*ReadLine();
+char	*CleanCppInput();
+char	*Strdup();
+char	*Emalloc();
+void	LogFatalI(), LogFatal(), LogMsg();
+
+void	showit();
+void	wrapup();
+void	init();
+void	AddMakeArg();
+void	AddCppArg();
+void	SetOpts();
+void	CheckImakefileC();
+void	cppit();
+void	makeit();
+void	CleanCppOutput();
+boolean	isempty();
+void	writetmpfile();
+
+boolean	verbose = FALSE;
+boolean	show = TRUE;
+
+int
+main(argc, argv)
+	int	argc;
+	char	**argv;
+{
+	FILE	*tmpfd;
+	char	makeMacro[ BUFSIZ ];
+	char	makefileMacro[ BUFSIZ ];
+
+	program = argv[0];
+	init();
+	SetOpts(argc, argv);
+
+	Imakefile = FindImakefile(Imakefile);
+	CheckImakefileC(ImakefileC);
+	if (Makefile)
+		tmpMakefile = Makefile;
+	else {
+		tmpMakefile = Strdup(tmpMakefile);
+		(void) mktemp(tmpMakefile);
+	}
+	AddMakeArg("-f");
+	AddMakeArg( tmpMakefile );
+	sprintf(makeMacro, "MAKE=%s", program);
+	AddMakeArg( makeMacro );
+	sprintf(makefileMacro, "MAKEFILE=%s", Imakefile);
+	AddMakeArg( makefileMacro );
+
+	if ((tmpfd = fopen(tmpMakefile, "w+")) == NULL)
+		LogFatal("Cannot create temporary file %s.", tmpMakefile);
+
+	cleanedImakefile = CleanCppInput(Imakefile);
+	cppit(cleanedImakefile, Template, ImakefileC, tmpfd, tmpMakefile);
+
+	if (show) {
+		if (Makefile == NULL)
+			showit(tmpfd);
+	} else
+		makeit();
+	wrapup();
+	exit(0);
+}
+
+void
+showit(fd)
+	FILE	*fd;
+{
+	char	buf[ BUFSIZ ];
+	int	red;
+
+	fseek(fd, 0, 0);
+	while ((red = fread(buf, 1, BUFSIZ, fd)) > 0)
+		writetmpfile(stdout, buf, red, "stdout");
+	if (red < 0)
+	    LogFatal("Cannot read %s.", tmpMakefile);
+}
+
+void
+wrapup()
+{
+	if (tmpMakefile != Makefile)
+		unlink(tmpMakefile);
+	if (cleanedImakefile && cleanedImakefile != Imakefile)
+		unlink(cleanedImakefile);
+	if (haveImakefileC)
+		unlink(ImakefileC);
+}
+
+#ifdef SIGNALRETURNSINT
+int
+#else
+void
+#endif
+catch(sig)
+	int	sig;
+{
+	errno = 0;
+	LogFatalI("Signal %d.", sig);
+}
+
+/*
+ * Initialize some variables.
+ */
+void
+init()
+{
+	register char	*p;
+
+	make_argindex=0;
+	while (make_argv[ make_argindex ] != NULL)
+		make_argindex++;
+	cpp_argindex = 0;
+	while (cpp_argv[ cpp_argindex ] != NULL)
+		cpp_argindex++;
+
+	/*
+	 * See if the standard include directory is different than
+	 * the default.  Or if cpp is not the default.  Or if the make
+	 * found by the PATH variable is not the default.
+	 */
+	if (p = getenv("IMAKEINCLUDE")) {
+		if (*p != '-' || *(p+1) != 'I')
+			LogFatal("Environment var IMAKEINCLUDE %s",
+				"must begin with -I");
+		AddCppArg(p);
+		for (; *p; p++)
+			if (*p == ' ') {
+				*p++ = '\0';
+				AddCppArg(p);
+			}
+	}
+	if (p = getenv("IMAKECPP"))
+		cpp = p;
+	if (p = getenv("IMAKEMAKE"))
+		make_argv[0] = p;
+
+	if (signal(SIGINT, SIG_IGN) != SIG_IGN)
+		signal(SIGINT, catch);
+#ifdef SIGCHLD
+	signal(SIGCHLD, SIG_DFL);
+#endif
+}
+
+void
+AddMakeArg(arg)
+	char	*arg;
+{
+	errno = 0;
+	if (make_argindex >= ARGUMENTS-1)
+		LogFatal("Out of internal storage.", "");
+	make_argv[ make_argindex++ ] = arg;
+	make_argv[ make_argindex ] = NULL;
+}
+
+void
+AddCppArg(arg)
+	char	*arg;
+{
+	errno = 0;
+	if (cpp_argindex >= ARGUMENTS-1)
+		LogFatal("Out of internal storage.", "");
+	cpp_argv[ cpp_argindex++ ] = arg;
+	cpp_argv[ cpp_argindex ] = NULL;
+}
+
+void
+SetOpts(argc, argv)
+	int	argc;
+	char	**argv;
+{
+	errno = 0;
+	/*
+	 * Now gather the arguments for make
+	 */
+	for(argc--, argv++; argc; argc--, argv++) {
+	    /*
+	     * We intercept these flags.
+	     */
+	    if (argv[0][0] == '-') {
+		if (argv[0][1] == 'D') {
+		    AddCppArg(argv[0]);
+		} else if (argv[0][1] == 'I') {
+		    AddCppArg(argv[0]);
+		} else if (argv[0][1] == 'f') {
+		    if (argv[0][2])
+			Imakefile = argv[0]+2;
+		    else {
+			argc--, argv++;
+			if (! argc)
+			    LogFatal("No description arg after -f flag", "");
+			Imakefile = argv[0];
+		    }
+		} else if (argv[0][1] == 's') {
+		    if (argv[0][2])
+			Makefile = ((argv[0][2] == '-') && !argv[0][3]) ?
+			    NULL : argv[0]+2;
+		    else {
+			argc--, argv++;
+			if (!argc)
+			    LogFatal("No description arg after -s flag", "");
+			Makefile = ((argv[0][0] == '-') && !argv[0][1]) ?
+			    NULL : argv[0];
+		    }
+		    show = TRUE;
+		} else if (argv[0][1] == 'e') {
+		   Makefile = (argv[0][2] ? argv[0]+2 : NULL);
+		   show = FALSE;
+		} else if (argv[0][1] == 'T') {
+		    if (argv[0][2])
+			Template = argv[0]+2;
+		    else {
+			argc--, argv++;
+			if (! argc)
+			    LogFatal("No description arg after -T flag", "");
+			Template = argv[0];
+		    }
+		} else if (argv[0][1] == 'C') {
+		    if (argv[0][2])
+			ImakefileC = argv[0]+2;
+		    else {
+			argc--, argv++;
+			if (! argc)
+			    LogFatal("No imakeCfile arg after -C flag", "");
+			ImakefileC = argv[0];
+		    }
+		} else if (argv[0][1] == 'v') {
+		    verbose = TRUE;
+		} else
+		    AddMakeArg(argv[0]);
+	    } else
+		AddMakeArg(argv[0]);
+	}
+#ifdef USE_CC_E
+	if (!cpp)
+	{
+		AddCppArg("-E");
+		cpp = DEFAULT_CC;
+	}
+#else
+	if (!cpp)
+		cpp = DEFAULT_CPP;
+#endif
+	cpp_argv[0] = cpp;
+	AddCppArg(ImakefileC);
+}
+
+char *
+FindImakefile(Imakefile)
+	char	*Imakefile;
+{
+	if (Imakefile) {
+		if (access(Imakefile, R_OK) < 0)
+			LogFatal("Cannot find %s.", Imakefile);
+	} else {
+		if (access("Imakefile", R_OK) < 0)
+			if (access("imakefile", R_OK) < 0)
+				LogFatal("No description file.", "");
+			else
+				Imakefile = "imakefile";
+		else
+			Imakefile = "Imakefile";
+	}
+	return(Imakefile);
+}
+
+void
+LogFatalI(s, i)
+	char *s;
+	int i;
+{
+	/*NOSTRICT*/
+	LogFatal(s, (char *)(long)i);
+}
+
+void
+LogFatal(x0,x1)
+	char *x0, *x1;
+{
+	static boolean	entered = FALSE;
+
+	if (entered)
+		return;
+	entered = TRUE;
+
+	LogMsg(x0, x1);
+	fprintf(stderr, "  Stop.\n");
+	wrapup();
+	exit(1);
+}
+
+void
+LogMsg(x0,x1)
+	char *x0, *x1;
+{
+	int error_number = errno;
+
+	if (error_number) {
+		fprintf(stderr, "%s: ", program);
+		fprintf(stderr, "%s\n", strerror(error_number));
+	}
+	fprintf(stderr, "%s: ", program);
+	fprintf(stderr, x0, x1);
+	fprintf(stderr, "\n");
+}
+
+void
+showargs(argv)
+	char	**argv;
+{
+	for (; *argv; argv++)
+		fprintf(stderr, "%s ", *argv);
+	fprintf(stderr, "\n");
+}
+
+#define ImakefileCHeader "/* imake - temporary file */"
+
+void
+CheckImakefileC(masterc)
+	char *masterc;
+{
+	char mkcbuf[1024];
+	FILE *inFile;
+
+	if (access(masterc, F_OK) == 0) {
+		inFile = fopen(masterc, "r");
+		if (inFile == NULL)
+			LogFatal("Refuse to overwrite: %s", masterc);
+		if ((fgets(mkcbuf, sizeof(mkcbuf), inFile) &&
+		     strncmp(mkcbuf, ImakefileCHeader, 
+			     sizeof(ImakefileCHeader)-1)))
+		{
+			fclose(inFile);
+			LogFatal("Refuse to overwrite: %s", masterc);
+		}
+		fclose(inFile);
+	}
+}
+
+#define LocalDefineFmt	"#define %s \"%s\"\n"
+#define IncludeFmt	"#include %s\n"
+#define ImakeDefSym	"INCLUDE_IMAKEFILE"
+#define ImakeTmplSym	"IMAKE_TEMPLATE"
+#define OverrideWarning	"Warning: local file \"%s\" overrides global macros."
+
+boolean
+optional_include(inFile, defsym, fname)
+        FILE	*inFile;
+        char    *defsym;
+        char    *fname;
+{
+	errno = 0;
+	if (access(fname, R_OK) == 0) {
+		LogMsg(OverrideWarning, fname);
+		return (fprintf(inFile, LocalDefineFmt, defsym, fname) < 0 ||
+			fprintf(inFile, IncludeFmt, defsym) < 0);
+	}
+	return FALSE;
+}
+
+void
+doit(outfd, cmd, argv)
+	FILE	*outfd;
+	char    *cmd;
+	char	**argv;
+{
+	int	pid;
+	waitType	status;
+
+	/*
+	 * Fork and exec the command.
+	 */
+#ifdef WIN32
+	if (outfd)
+		dup2(fileno(outfd), 1);
+	status = _spawnvp(_P_WAIT, cmd, argv);
+	if (status < 0)
+		LogFatal("Cannot spawn %s.", cmd);
+	if (status > 0)
+		LogFatalI("Exit code %d.", status);
+#else
+	pid = fork();
+	if (pid < 0)
+		LogFatal("Cannot fork.", "");
+	if (pid) {	/* parent... simply wait */
+		while (wait(&status) > 0) {
+			errno = 0;
+			if (WIFSIGNALED(status))
+				LogFatalI("Signal %d.", waitSig(status));
+			if (WIFEXITED(status) && waitCode(status))
+				LogFatalI("Exit code %d.", waitCode(status));
+		}
+	}
+	else {	/* child... dup and exec cmd */
+		if (verbose)
+			showargs(argv);
+		if (outfd)
+			dup2(fileno(outfd), 1);
+		execvp(cmd, argv);
+		LogFatal("Cannot exec %s.", cmd);
+	}
+#endif
+}
+
+#ifndef WIN32
+static void
+parse_utsname(name, fmt, result, msg)
+     struct utsname *name;
+     char *fmt;
+     char *result;
+     char *msg;
+{
+  char buf[SYS_NMLN * 5 + 1];
+  char *ptr = buf;
+  int arg;
+
+  /* Assemble all the pieces into a buffer. */
+  for (arg = 0; fmt[arg] != ' '; arg++)
+    {
+      /* Our buffer is only guaranteed to hold 5 arguments. */
+      if (arg >= 5)
+	LogFatal(msg, fmt);
+
+      switch (fmt[arg])
+	{
+	case 's':
+	  if (arg > 0)
+	    *ptr++ = ' ';
+	  strcpy(ptr, name->sysname);
+	  ptr += strlen(ptr);
+	  break;
+
+	case 'n':
+	  if (arg > 0)
+	    *ptr++ = ' ';
+	  strcpy(ptr, name->nodename);
+	  ptr += strlen(ptr);
+	  break;
+
+	case 'r':
+	  if (arg > 0)
+	    *ptr++ = ' ';
+	  strcpy(ptr, name->release);
+	  ptr += strlen(ptr);
+	  break;
+
+	case 'v':
+	  if (arg > 0)
+	    *ptr++ = ' ';
+	  strcpy(ptr, name->version);
+	  ptr += strlen(ptr);
+	  break;
+
+	case 'm':
+	  if (arg > 0)
+	    *ptr++ = ' ';
+	  strcpy(ptr, name->machine);
+	  ptr += strlen(ptr);
+	  break;
+
+	default:
+	  LogFatal(msg, fmt);
+	}
+    }
+
+  /* Just in case... */
+  if (strlen(buf) >= sizeof(buf))
+    LogFatal("Buffer overflow parsing uname.", "");
+
+  /* Parse the buffer.  The sscanf() return value is rarely correct. */
+  *result = '\0';
+  (void) sscanf(buf, fmt + arg + 1, result);
+}
+
+/* Trim leading 0's and periods from version names.  The 0's cause
+   the number to be interpreted as octal numbers.  Some version strings
+   have the potential for different numbers of .'s in them.
+ */
+	
+static char *
+trim_version(p)
+	char *p;
+{
+
+	if (p != 0 && *p != '\0')
+	{
+		while ((*p == '0' || *p == '.') && *(p + 1) != '\0')
+			++p;
+	}
+	return (p);
+}
+#endif
+
+
+#ifdef linux
+const char *libc_c=
+"#include <stdio.h>\n"
+"#include <ctype.h>\n"
+"\n"
+"#if 0\n"
+"#pragma weak gnu_get_libc_version\n"
+"#pragma weak __libc_version\n"
+"#pragma weak __linux_C_lib_version\n"
+"#else\n"
+"asm (\".weak gnu_get_libc_version\");\n"
+"asm (\".weak __libc_version\");\n"
+"asm (\".weak __linux_C_lib_version\");\n"
+"#endif\n"
+"\n"
+"extern const char * gnu_get_libc_version (void);\n"
+"extern const char * __linux_C_lib_version;\n"
+"extern const char __libc_version [];\n"
+"\n"
+"int\n"
+"main ()\n"
+"{\n"
+"  int libcmajor = 0, libcminor = 0, libcteeny = 0;\n"
+"\n"
+"  if (((&__linux_C_lib_version != 0)\n"
+"       && ((&__libc_version != 0) || (gnu_get_libc_version != 0)))\n"
+"      || (!(&__linux_C_lib_version != 0) && !(&__libc_version != 0)\n"
+"	  && !(gnu_get_libc_version != 0)))\n"
+"  {\n"
+"    libcmajor = 0;\n"
+"    libcminor = 0;\n"
+"    libcteeny = 0;\n"
+"  }\n"
+"  else\n"
+"  {\n"
+"    const char * ptr;\n"
+"    int glibcmajor = 0;\n"
+"\n"
+"    if (gnu_get_libc_version != 0)\n"
+"    {\n"
+"      ptr = gnu_get_libc_version ();\n"
+"      glibcmajor = 4;\n"
+"    }\n"
+"    else if (&__libc_version != 0)\n"
+"    {\n"
+"      ptr = __libc_version;\n"
+"      glibcmajor = 4;\n"
+"    }\n"
+"    else\n"
+"      ptr = __linux_C_lib_version;\n"
+"\n"
+"    while (!isdigit (*ptr))\n"
+"      ptr++;\n"
+"\n"
+"    sscanf (ptr, \"%d.%d.%d\", &libcmajor, &libcminor, &libcteeny);\n"
+"    libcmajor += glibcmajor;\n"
+"  }\n"
+"\n"
+"  printf(\"#define DefaultLinuxCLibMajorVersion %d\\n\", libcmajor);\n"
+"  printf(\"#define DefaultLinuxCLibMinorVersion %d\\n\", libcminor);\n"
+"  printf(\"#define DefaultLinuxCLibTeenyVersion %d\\n\", libcteeny);\n"
+"\n"
+"  return 0;\n"
+"}\n"
+;
+
+static void get_libc_version(inFile)
+  FILE* inFile;
+{
+  char *aout = tmpnam (NULL);
+  FILE *fp;
+  const char *format = "%s -o %s -x c -";
+  char *cc;
+  int len;
+  char *command;
+
+  cc = getenv ("CC");
+  if (cc == NULL)
+    cc = "gcc";
+  len = strlen (aout) + strlen (format) + strlen (cc);
+  if (len < 128) len = 128;
+  command = alloca (len);
+
+  if (snprintf (command , len, format, cc, aout) == len)
+    abort ();
+
+  fp = popen (command, "w");
+  if (fp == NULL || fprintf (fp, "%s\n", libc_c) < 0
+      || pclose (fp) != 0)
+    abort ();
+
+  fp = popen (aout, "r");
+  if (fp == NULL)
+    abort ();
+
+  while (fgets (command, len, fp))
+    fprintf (inFile, command);
+  
+  len = pclose (fp);
+  remove (aout);
+  if (len)
+    abort ();
+}
+
+static void get_ld_version(inFile)
+  FILE* inFile;
+{
+  FILE* ldprog = popen ("ld -v", "r");
+  char c;
+  int ldmajor, ldminor;
+
+  if (ldprog) {
+    do {
+      c = fgetc (ldprog);
+    } while (c != EOF && !isdigit (c));
+    ungetc (c, ldprog);
+    (void) fscanf (ldprog, "%d.%d", &ldmajor, &ldminor);
+    fprintf(inFile, "#define DefaultLinuxBinUtilsMajorVersion %d\n", 
+	    ldmajor * 10 + ldminor);    
+    pclose (ldprog);
+  }
+}
+#endif
+
+#ifndef PATH_MAX
+#define PATH_MAX 1024
+#endif
+
+#ifndef __EMX__
+static void get_gcc_incdir(inFile)
+  FILE* inFile;
+{
+  static char* gcc_path[] = {
+#if defined(linux) || defined(__OpenBSD__)
+    "/usr/bin/cc",	/* for Linux PostIncDir */
+#endif
+    "/usr/local/bin/gcc",
+    "/opt/gnu/bin/gcc"
+  };
+  struct stat sb;
+  int i;
+  FILE* gccproc;
+  char buf[PATH_MAX];
+  char cmd[PATH_MAX];
+  char* ptr;
+
+  buf[0] = '\0';
+  for (i = 0; i < sizeof gcc_path / sizeof gcc_path[0]; i++) {
+    if (lstat (gcc_path[i], &sb) == 0) {
+      strcpy (cmd, gcc_path[i]);
+      strcat (cmd, " --print-libgcc-file-name");
+      if ((gccproc = popen (cmd, "r")) != NULL) {
+	if (fgets (buf, PATH_MAX, gccproc) != NULL) {
+	  ptr = strstr (buf, "libgcc.a");
+	  if (ptr) strcpy (ptr, "include");
+	}
+	(void) pclose (gccproc);
+	break;
+      }
+    }
+  }
+  if (buf[0])
+    fprintf (inFile, "#define DefaultGccIncludeDir %s\n", buf);
+}
+#endif
+
+boolean
+define_os_defaults(inFile)
+	FILE	*inFile;
+{
+#if !defined(WIN32) && !defined(__EMX__)
+#if (defined(DEFAULT_OS_NAME) || defined(DEFAULT_OS_MAJOR_REV) || \
+     defined(DEFAULT_OS_MINOR_REV) || defined(DEFAUL_OS_TEENY_REV))
+	struct utsname name;
+	char buf[SYS_NMLN * 5 + 1];
+
+	/* Obtain the system information. */
+	if (uname(&name) < 0)
+		LogFatal("Cannot invoke uname", "");
+
+# ifdef DEFAULT_OS_NAME
+	parse_utsname(&name, DEFAULT_OS_NAME, buf, 
+		      "Bad DEFAULT_OS_NAME syntax %s");
+#  ifdef DEFAULT_OS_NAME_FROB
+	DEFAULT_OS_NAME_FROB(buf, sizeof buf);
+#  endif
+	if (buf[0] != '\0')
+		fprintf(inFile, "#define DefaultOSName %s\n", buf);
+# endif
+
+# ifdef DEFAULT_OS_MAJOR_REV
+	parse_utsname(&name, DEFAULT_OS_MAJOR_REV, buf,
+		      "Bad DEFAULT_OS_MAJOR_REV syntax %s");
+#  ifdef DEFAULT_OS_MAJOR_REV_FROB
+	DEFAULT_OS_MAJOR_REV_FROB(buf, sizeof buf);
+#  endif
+	fprintf(inFile, "#define DefaultOSMajorVersion %s\n",
+		*buf ? trim_version(buf) : "0");
+# endif
+
+# ifdef DEFAULT_OS_MINOR_REV
+	parse_utsname(&name, DEFAULT_OS_MINOR_REV, buf,
+		      "Bad DEFAULT_OS_MINOR_REV syntax %s");
+#  ifdef DEFAULT_OS_MINOR_REV_FROB
+	DEFAULT_OS_MINOR_REV_FROB(buf, sizeof buf);
+#  endif
+	fprintf(inFile, "#define DefaultOSMinorVersion %s\n",
+		*buf ? trim_version(buf) : "0");
+# endif
+
+# ifdef DEFAULT_OS_TEENY_REV
+	parse_utsname(&name, DEFAULT_OS_TEENY_REV, buf,
+		      "Bad DEFAULT_OS_TEENY_REV syntax %s");
+#  ifdef DEFAULT_OS_TEENY_REV_FROB
+	DEFAULT_OS_TEENY_REV_FROB(buf, sizeof buf);
+#  endif
+	fprintf(inFile, "#define DefaultOSTeenyVersion %s\n",
+		*buf ? trim_version(buf) : "0");
+# endif
+# ifdef DEFAULT_MACHINE_ARCHITECTURE
+	parse_utsname(&name, DEFAULT_MACHINE_ARCHITECTURE, buf, 
+		      "Bad DEFAULT_MACHINE_ARCHITECTURE %s");
+	fprintf(inFile, "#ifndef %s\n# define %s\n#endif\n", buf, buf);
+# endif
+#endif
+#ifdef linux
+    get_libc_version (inFile);
+    get_ld_version(inFile);
+#endif
+    get_gcc_incdir(inFile);
+#endif /* WIN32 */
+	return FALSE;
+}
+
+void
+cppit(imakefile, template, masterc, outfd, outfname)
+	char	*imakefile;
+	char	*template;
+	char	*masterc;
+	FILE	*outfd;
+	char	*outfname;
+{
+	FILE	*inFile;
+
+	haveImakefileC = TRUE;
+	inFile = fopen(masterc, "w");
+	if (inFile == NULL)
+		LogFatal("Cannot open %s for output.", masterc);
+	if (fprintf(inFile, "%s\n", ImakefileCHeader) < 0 ||
+	    define_os_defaults(inFile) ||
+	    optional_include(inFile, "IMAKE_LOCAL_DEFINES", "localdefines") ||
+	    optional_include(inFile, "IMAKE_ADMIN_DEFINES", "admindefines") ||
+	    fprintf(inFile, "#define %s <%s>\n", ImakeDefSym, imakefile) < 0 ||
+	    fprintf(inFile, LocalDefineFmt, ImakeTmplSym, template) < 0 ||
+	    fprintf(inFile, IncludeFmt, ImakeTmplSym) < 0 ||
+	    optional_include(inFile, "IMAKE_ADMIN_MACROS", "adminmacros") ||
+	    optional_include(inFile, "IMAKE_LOCAL_MACROS", "localmacros") ||
+	    fflush(inFile) || 
+	    fclose(inFile))
+		LogFatal("Cannot write to %s.", masterc);
+	/*
+	 * Fork and exec cpp
+	 */
+	doit(outfd, cpp, cpp_argv);
+	CleanCppOutput(outfd, outfname);
+}
+
+void
+makeit()
+{
+	doit(NULL, make_argv[0], make_argv);
+}
+
+char *
+CleanCppInput(imakefile)
+	char	*imakefile;
+{
+	FILE	*outFile = NULL;
+	FILE	*inFile;
+	char	*buf,		/* buffer for file content */
+		*pbuf,		/* walking pointer to buf */
+		*punwritten,	/* pointer to unwritten portion of buf */
+		*ptoken,	/* pointer to # token */
+		*pend,		/* pointer to end of # token */
+		savec;		/* temporary character holder */
+	int	count;
+	struct stat	st;
+
+	/*
+	 * grab the entire file.
+	 */
+	if (!(inFile = fopen(imakefile, "r")))
+		LogFatal("Cannot open %s for input.", imakefile);
+	if (fstat(fileno(inFile), &st) < 0)
+		LogFatal("Cannot stat %s for size.", imakefile);
+	buf = Emalloc((int)st.st_size+3);
+	count = fread(buf + 2, 1, st.st_size, inFile);
+	if (count == 0  &&  st.st_size != 0)
+		LogFatal("Cannot read %s:", imakefile);
+	fclose(inFile);
+	buf[0] = '\n';
+	buf[1] = '\n';
+	buf[count + 2] = '\0';
+
+	punwritten = pbuf = buf + 2;
+	while (*pbuf) {
+	    /* for compatibility, replace make comments for cpp */
+	    if (*pbuf == '#' && pbuf[-1] == '\n' && pbuf[-2] != '\\') {
+		ptoken = pbuf+1;
+		while (*ptoken == ' ' || *ptoken == '\t')
+			ptoken++;
+		pend = ptoken;
+		while (*pend && *pend != ' ' && *pend != '\t' && *pend != '\n')
+			pend++;
+		savec = *pend;
+		*pend = '\0';
+		if (strcmp(ptoken, "define") &&
+		    strcmp(ptoken, "if") &&
+		    strcmp(ptoken, "ifdef") &&
+		    strcmp(ptoken, "ifndef") &&
+		    strcmp(ptoken, "include") &&
+		    strcmp(ptoken, "line") &&
+		    strcmp(ptoken, "else") &&
+		    strcmp(ptoken, "elif") &&
+		    strcmp(ptoken, "endif") &&
+		    strcmp(ptoken, "error") &&
+		    strcmp(ptoken, "pragma") &&
+		    strcmp(ptoken, "undef")) {
+		    if (outFile == NULL) {
+			tmpImakefile = Strdup(tmpImakefile);
+			(void) mktemp(tmpImakefile);
+			outFile = fopen(tmpImakefile, "w");
+			if (outFile == NULL)
+			    LogFatal("Cannot open %s for write.",
+				tmpImakefile);
+		    }
+		    writetmpfile(outFile, punwritten, pbuf-punwritten,
+				 tmpImakefile);
+		    if (ptoken > pbuf + 1)
+			writetmpfile(outFile, "XCOMM", 5, tmpImakefile);
+		    else
+			writetmpfile(outFile, "XCOMM ", 6, tmpImakefile);
+		    punwritten = pbuf + 1;
+		}
+		*pend = savec;
+	    }
+	    pbuf++;
+	}
+	if (outFile) {
+	    writetmpfile(outFile, punwritten, pbuf-punwritten, tmpImakefile);
+	    fclose(outFile);
+	    return tmpImakefile;
+	}
+
+	return(imakefile);
+}
+
+void
+CleanCppOutput(tmpfd, tmpfname)
+	FILE	*tmpfd;
+	char	*tmpfname;
+{
+	char	*input;
+	int	blankline = 0;
+
+	while(input = ReadLine(tmpfd, tmpfname)) {
+		if (isempty(input)) {
+			if (blankline++)
+				continue;
+			KludgeResetRule();
+		} else {
+			blankline = 0;
+			KludgeOutputLine(&input);
+			writetmpfile(tmpfd, input, strlen(input), tmpfname);
+		}
+		writetmpfile(tmpfd, "\n", 1, tmpfname);
+	}
+	fflush(tmpfd);
+#ifdef NFS_STDOUT_BUG
+	/*
+	 * On some systems, NFS seems to leave a large number of nulls at
+	 * the end of the file.  Ralph Swick says that this kludge makes the
+	 * problem go away.
+	 */
+	ftruncate (fileno(tmpfd), (off_t)ftell(tmpfd));
+#endif
+}
+
+/*
+ * Determine if a line has nothing in it.  As a side effect, we trim white
+ * space from the end of the line.  Cpp magic cookies are also thrown away.
+ * "XCOMM" token is transformed to "#".
+ */
+boolean
+isempty(line)
+	register char	*line;
+{
+	register char	*pend;
+
+	/*
+	 * Check for lines of the form
+	 *	# n "...
+	 * or
+	 *	# line n "...
+	 */
+	if (*line == '#') {
+		pend = line+1;
+		if (*pend == ' ')
+			pend++;
+		if (*pend == 'l' && pend[1] == 'i' && pend[2] == 'n' &&
+		    pend[3] == 'e' && pend[4] == ' ')
+			pend += 5;
+		if (isdigit(*pend)) {
+		    	do {
+			    pend++;
+			} while (isdigit(*pend));
+			if (*pend == '\n' || *pend == '\0')
+				return(TRUE);
+			if (*pend++ == ' ' && *pend == '"')
+				return(TRUE);
+		}
+		while (*pend)
+		    pend++;
+	} else {
+	    for (pend = line; *pend; pend++) {
+		if (*pend == 'X' && pend[1] == 'C' && pend[2] == 'O' &&
+		    pend[3] == 'M' && pend[4] == 'M' &&
+		    (pend == line || pend[-1] == ' ' || pend[-1] == '\t') &&
+		    (pend[5] == ' ' || pend[5] == '\t' || pend[5] == '\0'))
+		{
+		    *pend = '#';
+		    strcpy(pend+1, pend+5);
+		}
+#ifdef MAGIC_MAKE_VARS
+		if (*pend == 'X' && pend[1] == 'V' && pend[2] == 'A' &&
+		    pend[3] == 'R')
+		{
+		    char varbuf[5];
+		    int i;
+
+		    if (pend[4] == 'd' && pend[5] == 'e' && pend[6] == 'f' &&
+			pend[7] >= '0' && pend[7] <= '9')
+		    {
+			i = pend[7] - '0';
+			sprintf(varbuf, "%0.4d", xvariable);
+			strncpy(pend+4, varbuf, 4);
+			xvariables[i] = xvariable;
+			xvariable = (xvariable + 1) % 10000;
+		    }
+		    else if (pend[4] == 'u' && pend[5] == 's' &&
+			     pend[6] == 'e' && pend[7] >= '0' &&
+			     pend[7] <= '9')
+		    {
+			i = pend[7] - '0';
+			sprintf(varbuf, "%0.4d", xvariables[i]);
+			strncpy(pend+4, varbuf, 4);
+		    }
+		}
+#endif
+	    }
+	}
+	while (--pend >= line && (*pend == ' ' || *pend == '\t')) ;
+	pend[1] = '\0';
+	return (*line == '\0');
+}
+
+/*ARGSUSED*/
+char *
+ReadLine(tmpfd, tmpfname)
+	FILE	*tmpfd;
+	char	*tmpfname;
+{
+	static boolean	initialized = FALSE;
+	static char	*buf, *pline, *end;
+	register char	*p1, *p2;
+
+	if (! initialized) {
+#ifdef WIN32
+		FILE *fp = tmpfd;
+#endif
+		int	total_red;
+		struct stat	st;
+
+		/*
+		 * Slurp it all up.
+		 */
+		fseek(tmpfd, 0, 0);
+		if (fstat(fileno(tmpfd), &st) < 0)
+			LogFatal("cannot stat %s for size", tmpMakefile);
+		pline = buf = Emalloc((int)st.st_size+1);
+		total_red = fread(buf, 1, st.st_size, tmpfd);
+		if (total_red == 0  &&  st.st_size != 0)
+			LogFatal("cannot read %s", tmpMakefile);
+		end = buf + total_red;
+		*end = '\0';
+		fseek(tmpfd, 0, 0);
+#if defined(SYSV) || defined(WIN32) || defined(USE_FREOPEN)
+		tmpfd = freopen(tmpfname, "w+", tmpfd);
+#ifdef WIN32
+		if (! tmpfd) /* if failed try again */
+			tmpfd = freopen(tmpfname, "w+", fp);
+#endif
+		if (! tmpfd)
+			LogFatal("cannot reopen %s\n", tmpfname);
+#else	/* !SYSV */
+		ftruncate(fileno(tmpfd), (off_t) 0);
+#endif	/* !SYSV */
+		initialized = TRUE;
+	    fprintf (tmpfd, "# Makefile generated by imake - do not edit!\n");
+	    fprintf (tmpfd, "# %s\n",
+		"$TOG: imake.c /main/97 1997/06/20 20:23:51 kaleb $");
+	}
+
+	for (p1 = pline; p1 < end; p1++) {
+		if (*p1 == '@' && *(p1+1) == '@'
+		    /* ignore ClearCase version-extended pathnames */
+		    && !(p1 != pline && !isspace(*(p1-1)) && *(p1+2) == '/'))
+		{ /* soft EOL */
+			*p1++ = '\0';
+			p1++; /* skip over second @ */
+			break;
+		}
+		else if (*p1 == '\n') { /* real EOL */
+#ifdef WIN32
+			if (p1 > pline && p1[-1] == '\r')
+				p1[-1] = '\0';
+#endif
+			*p1++ = '\0';
+			break;
+		}
+	}
+
+	/*
+	 * return NULL at the end of the file.
+	 */
+	p2 = (pline == p1 ? NULL : pline);
+	pline = p1;
+	return(p2);
+}
+
+void
+writetmpfile(fd, buf, cnt, fname)
+	FILE	*fd;
+	int	cnt;
+	char	*buf;
+	char	*fname;
+{
+	if (fwrite(buf, sizeof(char), cnt, fd) == -1)
+		LogFatal("Cannot write to %s.", fname);
+}
+
+char *
+Emalloc(size)
+	int	size;
+{
+	char	*p;
+
+	if ((p = malloc(size)) == NULL)
+		LogFatalI("Cannot allocate %d bytes", size);
+	return(p);
+}
+
+#ifdef FIXUP_CPP_WHITESPACE
+void
+KludgeOutputLine(pline)
+	char	**pline;
+{
+	char	*p = *pline;
+	char	quotechar = '\0';
+
+	switch (*p) {
+	    case '#':	/*Comment - ignore*/
+		break;
+	    case '\t':	/*Already tabbed - ignore it*/
+	    	break;
+	    case ' ':	/*May need a tab*/
+	    default:
+# ifdef INLINE_SYNTAX
+		if (*p == '<' && p[1] == '<') { /* inline file close */
+		    InInline--;
+		    InRule = TRUE;
+		    break;
+		}
+# endif
+		/*
+		 * The following cases should not be treated as beginning of 
+		 * rules:
+		 * variable := name	(GNU make)
+		 * variable = .*:.*	(':' should be allowed as value)
+		 *	sed 's:/a:/b:'	(: used in quoted values)
+		 */
+		for (; *p; p++) {
+		    if (quotechar) {
+			if (quotechar == '\\' ||
+			    (*p == quotechar &&
+# ifdef WIN32
+			     quotechar != ')' &&
+# endif
+			     p[-1] != '\\'))
+			    quotechar = '\0';
+			continue;
+		    }
+		    switch (*p) {
+		    case '\\':
+		    case '"':
+		    case '\'':
+			quotechar = *p;
+			break;
+		    case '(':
+			quotechar = ')';
+			break;
+		    case '{':
+			quotechar = '}';
+			break;
+		    case '[':
+			quotechar = ']';
+			break;
+		    case '=':
+# ifdef REMOVE_CPP_LEADSPACE
+			if (!InRule && **pline == ' ') {
+			    while (**pline == ' ')
+				(*pline)++;
+			}
+# endif
+			goto breakfor;
+# ifdef INLINE_SYNTAX
+		    case '<':
+			if (p[1] == '<') /* inline file start */
+			    InInline++;
+			break;
+# endif
+		    case ':':
+			if (p[1] == '=')
+			    goto breakfor;
+			while (**pline == ' ')
+			    (*pline)++;
+			InRule = TRUE;
+			return;
+		    }
+		}
+breakfor:
+		if (InRule && **pline == ' ')
+		    **pline = '\t';
+		break;
+	}
+}
+
+void
+KludgeResetRule()
+{
+	InRule = FALSE;
+}
+#endif /* FIXUP_CPP_WHITESPACE */
+
+char *
+Strdup(cp)
+	register char *cp;
+{
+	register char *new = Emalloc(strlen(cp) + 1);
+
+	strcpy(new, cp);
+	return new;
+}