libgo: Generate dependencies automatically.

From-SVN: r181955

libgo/configure

@@ -665,6 +665,7 @@ LIBGO_IS_FREEBSD_FALSE
 LIBGO_IS_FREEBSD_TRUE
 LIBGO_IS_DARWIN_FALSE
 LIBGO_IS_DARWIN_TRUE
+go_include
 LIBFFIINCS
 LIBFFI
 glibgo_toolexeclibdir
@@ -11096,7 +11097,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11099 "configure"
+#line 11100 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11202,7 +11203,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11205 "configure"
+#line 11206 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13455,6 +13456,11 @@ fi
 
 
 
+# Used to tell GNU make to include a file without telling automake to
+# include it.
+go_include="-include"
+
+
 is_darwin=no
 is_freebsd=no
 is_irix=no

libgo/configure.ac

@@ -117,6 +117,11 @@ fi
 AC_SUBST(LIBFFI)
 AC_SUBST(LIBFFIINCS)
 
+# Used to tell GNU make to include a file without telling automake to
+# include it.
+go_include="-include"
+AC_SUBST(go_include)
+
 is_darwin=no
 is_freebsd=no
 is_irix=no

libgo/godeps.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+# Copyright 2011 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# The godeps.sh script outputs a dependency file for a package.  The
+# dependency file is then included in the libgo Makefile.  This is
+# automatic dependency generation, Go style.
+
+# The first parameter is the name of the file being generated.  The
+# remaining parameters are the names of Go files which are scanned for
+# imports.
+
+set -e
+
+if test $# = 0; then
+    echo 1>&2 "Usage: godeps.sh OUTPUT INPUTS..."
+    exit 1
+fi
+
+output=$1
+shift
+
+deps=`for f in $*; do cat $f; done | 
+  sed -n -e '/^import.*"/p; /^import[ 	]*(/,/^)/p' |
+  grep '"' |
+  grep -v '"unsafe"' |
+  sed -e 's/^.*"\([^"]*\)".*$/\1/' -e 's/$/.gox/' |
+  sort -u`
+
+echo $output: $deps

libgo/testsuite/Makefile.in

@@ -169,6 +169,7 @@ exec_prefix = @exec_prefix@
 glibgo_prefixdir = @glibgo_prefixdir@
 glibgo_toolexecdir = @glibgo_toolexecdir@
 glibgo_toolexeclibdir = @glibgo_toolexeclibdir@
+go_include = @go_include@
 host = @host@
 host_alias = @host_alias@
 host_cpu = @host_cpu@