2 # Copyright 2012 The Go Authors. All rights reserved.
3 # Use of this source code is governed by a BSD-style
4 # license that can be found in the LICENSE file.
6 # See golang.org/s/go15bootstrap for an overview of the build process.
8 # Environment variables that control make.rc:
10 # GOROOT_FINAL: The expected final Go root, baked into binaries.
11 # The default is the location of the Go tree during the build.
13 # GOHOSTARCH: The architecture for host tools (compilers and
14 # binaries). Binaries of this type must be executable on the current
15 # system, so the only common reason to set this is to set
16 # GOHOSTARCH=386 on an amd64 machine.
18 # GOARCH: The target architecture for installed packages and tools.
20 # GOOS: The target operating system for installed packages and tools.
22 # GO_GCFLAGS: Additional go tool compile arguments to use when
23 # building the packages and commands.
25 # GO_LDFLAGS: Additional go tool link arguments to use when
26 # building the commands.
28 # CGO_ENABLED: Controls cgo usage during the build. Set it to 1
29 # to include all cgo related files, .c and .go file with "cgo"
30 # build directive, in the build. Set it to 0 to ignore them.
34 echo 'make.rc must be run from $GOROOT/src' >[1=2]
38 # Clean old generated file that will cause problems in the build.
39 rm -f ./runtime/runtime_defs.go
41 # Determine the host compiler toolchain.
42 eval `{grep '^(CC|LD|O)=' /$objtype/mkfile}
44 echo '##### Building Go bootstrap tool.'
46 GOROOT = `{cd .. && pwd}
47 if(! ~ $#GOROOT_BOOTSTRAP 1)
48 GOROOT_BOOTSTRAP = $home/go1.4
50 if(! test -x $GOROOT_BOOTSTRAP/bin/go){
51 if(go_exe = `{path=$p whatis go}){
52 goroot = `{GOROOT='' $go_exe env GOROOT}
53 if(! ~ $goroot $GOROOT){
54 GOROOT_BOOTSTRAP = $goroot
59 if(! test -x $GOROOT_BOOTSTRAP/bin/go){
60 echo 'ERROR: Cannot find '$GOROOT_BOOTSTRAP'/bin/go.' >[1=2]
61 echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2]
64 if(~ $GOROOT_BOOTSTRAP $GOROOT){
65 echo 'ERROR: $GOROOT_BOOTSTRAP must not be set to $GOROOT' >[1=2]
66 echo 'Set $GOROOT_BOOTSTRAP to a working Go tree >= Go 1.4.' >[1=2]
70 GOROOT=$GOROOT_BOOTSTRAP GOOS='' GOARCH='' $GOROOT_BOOTSTRAP/bin/go build -o cmd/dist/dist ./cmd/dist
72 eval `{./cmd/dist/dist env -9}
76 # Stop after building dist tool.
80 mv cmd/dist/dist $GOTOOLDIR/dist
89 # Run dist bootstrap to complete make.bash.
90 # Bootstrap installs a proper cmd/dist, built with the new toolchain.
91 # Throw ours, built with Go 1.4, away after bootstrap.
92 ./cmd/dist/dist bootstrap -v $buildall $*
95 # DO NOT ADD ANY NEW CODE HERE.
96 # The bootstrap+rm above are the final step of make.rc.
97 # If something must be added, add it to cmd/dist's cmdbootstrap,
98 # to avoid needing three copies in three different shell languages
99 # (make.bash, make.bat, make.rc).