[dev.cc] build: do not 'clean -i std' between dist and go_bootstrap

Executing 'clean -i std' removes installed Go programs,
including the toolchain binaries we need for building.
It's not clear why the 'clean -i std' is here in the first place.
cmd/dist just removed the entire pkg tree, so everything is new.
The only reason for 'clean -i std' would be if you don't trust
that dist compiled the packages properly. If that's true for
some reason, we can fix cmd/dist, or add -a to the install
commands that follow. Perhaps clean -i std should not
remove tools, or perhaps std should not expand to any tools.
Not sure.

Also remove banner from make.bat and make.rc that was
already removed from make.bash. cmd/dist prints it now.

Also fix array size error in liblink/objfile.c.

Fixes dev.cc build.

Change-Id: I60855e001a682efce55ad9aa307a8f3ee47f7366
Reviewed-on: https://go-review.googlesource.com/3100Reviewed-by: Russ Cox <rsc@golang.org>

src/liblink/objfile.c

@@ -124,7 +124,7 @@ void	writeobjdirect(Link*, Biobuf*);
 void
 writeobj(Link *ctxt, Biobuf *b)
 {
-	char *cmd[2];
+	char *cmd[3];
 	
 	// TODO(rsc): Use 'go tool objwriter' to write object file,
 	// allowing the bulk of liblink to be moved into Go.

src/make.bash

@@ -149,7 +149,6 @@ fi
 ./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
 # Delay move of dist tool to now, because bootstrap may clear tool directory.
 mv cmd/dist/dist "$GOTOOLDIR"/dist
-"$GOTOOLDIR"/go_bootstrap clean -i std
 echo
 
 if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then

src/make.bat

@@ -71,14 +71,12 @@ echo.
 if x%1==x--dist-tool goto copydist
 if x%2==x--dist-tool goto copydist
 
-echo ##### Building compilers and Go bootstrap tool.
 set buildall=-a
 if x%1==x--no-clean set buildall=
 .\cmd\dist\dist bootstrap %buildall% -v
 if errorlevel 1 goto fail
 :: Delay move of dist tool to now, because bootstrap cleared tool directory.
 move .\cmd\dist\dist.exe "%GOTOOLDIR%\dist.exe"
-"%GOTOOLDIR%\go_bootstrap" clean -i std
 echo.
 
 if not %GOHOSTARCH% == %GOARCH% goto localbuild

src/make.rc

@@ -72,14 +72,12 @@ if(~ $1 --dist-tool){
 	exit
 }
 
-echo '# Building compilers and Go bootstrap tool for host,' $GOHOSTOS/$GOHOSTARCH^.
 buildall = -a
 if(~ $1 --no-clean)
 	buildall = ()
 ./cmd/dist/dist bootstrap $buildall -v # builds go_bootstrap
 # Delay move of dist tool to now, because bootstrap may clear tool directory.
 mv cmd/dist/dist $GOTOOLDIR/dist
-$GOTOOLDIR/go_bootstrap clean -i std
 echo
 
 # Run only one process at a time on 9vx.