DJ patches for MSDOS

From-SVN: r7792

gcc/config/msdos/configur.bat

+@echo off
+echo Configuring GCC for go32
+rem This batch file assumes a unix-type "sed" program
+
+if not exist config\msdos\configure.bat chdir ..\..
+
+update config\i386\xm-dos.h config.h
+update config\i386\xm-dos.h hconfig.h
+update config\i386\xm-dos.h tconfig.h
+update config\i386\go32.h tm.h
+update config\i386\i386.md md
+update config\i386\i386.c aux-output.c
+
+echo # Makefile generated by "configure.bat"> Makefile
+echo all.dos: cccp cc1 cc1obj xgcc s-objlist >> Makefile
+sed -f config/msdos/top.sed Makefile.in >> Makefile
+
+set LANG=
+
+if not exist cp\make-lang.in goto no_cp
+sed -f config/msdos/top.sed cp\make-lang.in >> Makefile
+sed -f config/msdos/top.sed cp\makefile.in > cp\Makefile
+set LANG=%LANG% c++.&	
+:no_cp
+
+echo lang.mostlyclean: %LANG% | sed "s/&/mostlyclean/g" >> Makefile
+echo lang.clean: %LANG% | sed "s/&/clean/g" >> Makefile
+echo lang.distclean: %LANG% | sed "s/&/distclean/g" >> Makefile
+echo lang.realclean: %LANG% | sed "s/&/realclean/g" >> Makefile
+
+echo #define MULTILIB_SELECT ". ;" > multilib.h1
+update multilib.h1 multilib.h
+del multilib.h1

gcc/config/msdos/top.sed

+/\.o[ 	]*:/ s/config.status//
+/^multilib.h/ s/multilib/not-multilib/
+/^target=/ c\
+target=go32
+/^xmake_file=/ d
+/^tmake_file=/ d
+/^version=/ c\
+version=2.6.0
+s/CC = cc/CC = gcc/
+s/:\$/: \$/g
+s/^	\ *\.\//	go32 /
+s/<\ *\$(srcdir)\//< $(srcdir)\\/g
+s/^	\$(srcdir)\/move-if-change/	update/
+s/^USE_/# USE_/
+s/`echo \$(srcdir)\///g
+s/ | sed 's,\^\\\.\/,,'`//g
+s/^	cd \$(srcdir)[ 	]*;/	/
+/^# USE_HOST_OBSTACK/ i\
+USE_HOST_OBSTACK=obstack.o
+/^stamp-attrtab/,/update/ {
+  /\\/d
+  /fi/d
+  /update/ i\
+	  go32 genattrtab md > t-attrtab.c
+}
+/^enquire[ 	]*:/ s/\$(GCC_PARTS)//g
+/^enquire.o[ 	]*:/ s/\$(GCC_PASSES)//g
+/^GCC_FOR_TARGET =/ c\
+GCC_FOR_TARGET = gcc
+s/; *@true//
+s/stamp-/s-/g
+s/tmp-/t-/g
+/> *s-objlist/ c\
+	echo.exe -o s-objlist $(addprefix ../,$(OBJS) $(BC_OBJS))
+/^OBJS.*s-objlist/ s?`cat ../s-objlist`?@../s-objlist?
+s/^\(SUBDIR_OBSTACK *=\).*$/\1 ..\/obstack.o/
+s/^\(SUBDIR_USE_ALLOCA *=\).*$/\1/
+s/^\(SUBDIR_MALLOC *=\).*$/\1/

gcc/configure.bat

-@echo off
-echo Configuring GCC for go32
-rem This batch file assumes a unix-type "sed" program
-
-update config\i386\xm-dos.h config.h
-update config\i386\xm-dos.h hconfig.h
-update config\i386\xm-dos.h tconfig.h
-update config\i386\go32.h tm.h
-update config\i386\i386.md md
-update config\i386\i386.c aux-output.c
-
-echo # Makefile generated by "configure.bat"> Makefile
-echo all.dos: cccp cc1 cc1plus cc1obj xgcc>> Makefile
-
-if exist config.sed del config.sed
-
-echo "/\.o[ 	]*:/ s/config.status//			">> config.sed
-echo "/^target=/ c\					">> config.sed
-echo "target=go32					">> config.sed
-echo "/^version=/ c\					">> config.sed
-sed -e "s/.*\"\([^ \"]*\)[ \"].*/version=\1/" version.c  >> config.sed
-echo "s/CC = cc/CC = gcc/				">> config.sed
-echo "s/:\$/: \$/g					">> config.sed
-echo "s/^	\ *\.\//	go32 /			">> config.sed
-echo "s/<\ *\$(srcdir)\//< $(srcdir)\\/g		">> config.sed
-echo "s/^	\$(srcdir)\/move-if-change/	update/	">> config.sed
-echo "s/^USE_/# USE_/					">> config.sed
-echo "s/`echo \$(srcdir)\///g				">> config.sed
-echo "s/ | sed 's,\^\\\.\/,,'`//g			">> config.sed
-echo "s/^	cd \$(srcdir)[ 	]*;/	/		">> config.sed
-
-echo "/^# USE_HOST_OBSTACK/ i\				">> config.sed
-echo "USE_HOST_OBSTACK=obstack.o			">> config.sed
-
-echo "/^stamp-attrtab/,/update/ {			">> config.sed
-echo "  /\\/d						">> config.sed
-echo "  /fi/d						">> config.sed
-echo "  /update/ i\					">> config.sed
-echo "	  go32 genattrtab md > t-attrtab.c		">> config.sed
-echo "}							">> config.sed
-
-echo "/^enquire[ 	]*:/ s/\$(GCC_PARTS)//g		">> config.sed
-echo "/^enquire.o[ 	]*:/ s/\$(GCC_PASSES)//g	">> config.sed
-echo "/^GCC_FOR_TARGET =/ c\				">> config.sed
-echo "GCC_FOR_TARGET = gcc				">> config.sed
-
-echo "s/; *@true//					">> config.sed
-echo "s/stamp-/s-/g					">> config.sed
-echo "s/tmp-/t-/g					">> config.sed
-
-sed -e "s/^\"//" -e "s/\"$//" -e "s/[ 	]*$//" config.sed > config2.sed
-sed -f config2.sed Makefile.in >> Makefile
-del config.sed
-del config2.sed
+@echo off
+config\msdos\configure %1 %2 %3 %4

gcc/gcc.c

@@ -1873,10 +1873,7 @@ static int last_pipe_input;
 #ifndef OS2
 #ifdef __MSDOS__
 
-/* Declare these to avoid compilation error.  They won't be called.  */
-int execv(const char *a, const char **b){}
-int execvp(const char *a, const char **b){}
-
+#include <process.h>
 static int
 pexecute (search_flag, program, argv, not_last)
      int search_flag;
@@ -1884,6 +1881,9 @@ pexecute (search_flag, program, argv, not_last)
      char *argv[];
      int not_last;
 {
+#ifdef __GO32__
+  int i = (search_flag ? spawnv : spawnvp) (1, program, argv);
+#else
   char *scmd, *rf;
   FILE *argfile;
   int i, el = search_flag ? 0 : 4;
@@ -1912,13 +1912,13 @@ pexecute (search_flag, program, argv, not_last)
   i = system (scmd);
 
   remove (rf);
+#endif
   
   if (i == -1)
     {
       perror_exec (program);
       return MIN_FATAL_STATUS << 8;
     }
-
   return i << 8;
 }