From b48f5291779bc502b563d60c2ed9dbc4212834f7 Mon Sep 17 00:00:00 2001
From: ceriel <none@none>
Date: Fri, 26 Jan 1990 11:53:08 +0000
Subject: [PATCH] Added some mkdep features and fixed a bug

---
 util/cpp/Makefile  |  1 +
 util/cpp/domacro.c |  4 ++--
 util/cpp/main.c    | 32 +++++++++++++++++++++++++++-----
 util/cpp/options.c | 12 ++++++++----
 4 files changed, 38 insertions(+), 11 deletions(-)

diff --git a/util/cpp/Makefile b/util/cpp/Makefile
index e4b2f5340..0c11debea 100644
--- a/util/cpp/Makefile
+++ b/util/cpp/Makefile
@@ -198,6 +198,7 @@ options.o: class.h
 options.o: idf.h
 options.o: idfsize.h
 options.o: macro.h
+options.o: mkdep.h
 preprocess.o: LLlex.h
 preprocess.o: bits.h
 preprocess.o: charoffset.h
diff --git a/util/cpp/domacro.c b/util/cpp/domacro.c
index f0c0b2954..fb4b3ff0e 100644
--- a/util/cpp/domacro.c
+++ b/util/cpp/domacro.c
@@ -278,12 +278,12 @@ do_include()
 			error("cannot find include file \"%s\"", filenm);
 #else
 			warning("cannot find include file \"%s\"", filenm);
-			add_file(filenm);
+			add_dependency(filenm);
 #endif
 		}
 		else {
 #ifdef MKDEP
-			add_file(result);
+			add_dependency(result);
 #endif
 			WorkingDir = getwdir(result);
 			svnestlevel[++nestcount] = nestlevel;
diff --git a/util/cpp/main.c b/util/cpp/main.c
index 70852a383..e4494ecad 100644
--- a/util/cpp/main.c
+++ b/util/cpp/main.c
@@ -39,7 +39,7 @@ main(argc, argv)
 
 	inctable = (char **) Malloc(10 * sizeof(char *));
 	inc_max = 10;
-	inc_total = 2;
+	inc_total = 3;
 	inctable[0] = "";
 	inctable[1] = "/usr/include";
 	init_pp();	/* initialise the preprocessor macros	*/
@@ -90,25 +90,37 @@ compile(argc, argv)
 	if (source) WorkingDir = getwdir(dummy);
 	preprocess(source);
 #ifdef MKDEP
-	list_files();
+	list_dependencies(source);
 #endif
 }
 
 #ifdef MKDEP
 struct idf	*file_head;
+extern char *strrindex();
 
-list_files()
+list_dependencies(source)
+	char *source;
 {
 	register struct idf *p = file_head;
 
+	if (source) {
+		register char *s = strrindex(source, '.');
+
+		if (s && *(s+1)) {
+			s++;
+			*s++ = 'o';
+			*s = '\0';
+		}
+		else source = 0; 
+	}
 	while (p) {
 		assert(p->id_resmac == K_FILE);
-		print("%s\n", p->id_text);
+		dependency(p->id_text, source);
 		p = p->id_file;
 	}
 }
 
-add_file(s)
+add_dependency(s)
 	char *s;
 {
 	register struct idf *p = str2idf(s, 0);
@@ -119,4 +131,14 @@ add_file(s)
 		file_head = p;
 	}
 }
+
+dependency(s, source)
+	char *s;
+{
+	if (options['s'] && !strncmp(s, "/usr/include/", 13)) {
+		return;
+	}
+	if (options['m'] && source) print("%s: ", source);
+	print("%s\n", s);
+}
 #endif
diff --git a/util/cpp/options.c b/util/cpp/options.c
index 6df0df3f7..486a43717 100644
--- a/util/cpp/options.c
+++ b/util/cpp/options.c
@@ -10,6 +10,7 @@
 #include	"class.h"
 #include	"macro.h"
 #include	"idf.h"
+#include	"mkdep.h"
 
 char options[128];			/* one for every char	*/
 int inc_pos = 1;			/* place where next -I goes */
@@ -25,13 +26,19 @@ do_option(text)
 {
 	switch(*text++)	{
 	case '-':
+#ifdef MKDEP
+	case 'x':
+#endif
 		options[*text] = 1;
 		break;
 	default:
+#ifndef MKDEP
 		error("illegal option: %c", text[-1]);
+#endif
 		break;
 	case 'C' :	/* comment output		*/
-		options['C'] = 1;
+	case 'P' :	/* run preprocessor stand-alone, without #'s	*/
+		options[*(text-1)] = 1;
 		break;
 	case 'D' :	/* -Dname :	predefine name		*/
 	{
@@ -98,9 +105,6 @@ do_option(text)
 			idfsize = 8;
 		}
 		break;
-	case 'P' :	/* run preprocessor stand-alone, without #'s	*/
-		options['P'] = 1;
-		break;
 	case 'U' :	/* -Uname :	undefine predefined	*/
 		if (*text)	{
 			register struct idf *idef = findidf(text);
-- 
2.34.1