--- gcc/config/msdos/top.sed	2018/04/24 18:21:42	1.1
+++ gcc/config/msdos/top.sed	2018/04/24 18:34:44	1.1.1.3
@@ -2,13 +2,29 @@
 /^multilib.h/ s/multilib/not-multilib/
 /^target=/ c\
 target=go32
+/^out_file=/ c\
+out_file=config/i386/i386.c
+/^out_object_file=/ c\
+out_object_file=i386.o
+/^md_file=/ c\
+md_file=config/i386/i386.md
+/^tm_file=/ c\
+tm_file=config/i386/go32.h
+/^build_xm_file=/ c\
+build_xm_file=config/i386/xm-dos.h
+/^host_xm_file=/ c\
+host_xm_file=config/i386/xm-dos.h
+/^lang_specs_files=/ d
+/^lang_options_files=/ d
 /^xmake_file=/ d
 /^tmake_file=/ d
 /^version=/ c\
-version=2.6.1
+version=2.7.2.1
+/^mainversion=/ c\
+mainversion=2.7.2.1
 s/CC = cc/CC = gcc/
 s/:\$/: \$/g
-s/^	\ *\.\//	go32 /
+s/^	\ *\.\//	/
 s/<\ *\$(srcdir)\//< $(srcdir)\\/g
 s/^	\$(srcdir)\/move-if-change/	update/
 s/^USE_/# USE_/
@@ -19,9 +35,10 @@ s/^	cd \$(srcdir)[ 	]*;/	/
 USE_HOST_OBSTACK=obstack.o
 /^stamp-attrtab/,/update/ {
   /\\/d
-  /fi/d
+  /[ 	]fi[ 	]/d
+  /[ 	]fi$/d
   /update/ i\
-	  go32 genattrtab md > t-attrtab.c
+	genattrtab md > t-attrtab.c
 }
 /^enquire[ 	]*:/ s/\$(GCC_PARTS)//g
 /^enquire.o[ 	]*:/ s/\$(GCC_PASSES)//g
@@ -36,3 +53,5 @@ s/tmp-/t-/g
 s/^\(SUBDIR_OBSTACK *=\).*$/\1 ..\/obstack.o/
 s/^\(SUBDIR_USE_ALLOCA *=\).*$/\1/
 s/^\(SUBDIR_MALLOC *=\).*$/\1/
+/^# Build libgcc.a/ r config/msdos/libgcc.mak
+/^# Build libgcc.a/,// d