-:: Copyright 2012 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.
-::@echo off
-
-set GOBUILDFAIL=0
-
-if exist make.bat goto ok
-echo Must run make.bat from Go src directory.
-goto fail
-:ok
-
-:: Grab default GOROOT_FINAL and set GOROOT for build.
-:: The expression %VAR:\=\\% means to take %VAR%
-:: and apply the substitution \ = \\, escaping the
-:: backslashes. Then we wrap that in quotes to create
-:: a C string.
-cd ..
-set GOROOT="%CD%"
-cd src
-if "x%GOROOT_FINAL%"=="x" set GOROOT_FINAL="%GOROOT%"
-set DEFGOROOT=-DGOROOT_FINAL="\"%GOROOT_FINAL:\=\\%\""
-
-echo # Building C bootstrap tool.
-if not exist ..\bin\tool mkdir ..\bin\tool
-:: Windows has no glob expansion, so spell out cmd/dist/*.c.
-gcc -O2 -Wall -Werror -o ../bin/tool/dist.exe -Icmd/dist %DEFGOROOT% cmd/dist/buf.c cmd/dist/build.c cmd/dist/buildgc.c cmd/dist/buildruntime.c cmd/dist/goc2c.c cmd/dist/main.c cmd/dist/windows.c
-if errorlevel 1 goto fail
-:: Echo with no arguments prints whether echo is turned on, so echo dot.
-echo .
-
-echo # Building compilers and Go bootstrap tool.
-..\bin\tool\dist bootstrap -v
-if errorlevel 1 goto fail
-echo .
-
-echo # Building packages and commands.
-..\bin\tool\go_bootstrap clean std
-if errorlevel 1 goto fail
-..\bin\tool\go_bootstrap install -a -v std
-if errorlevel 1 goto fail
-del ..\bin\tool\go_bootstrap.exe
-echo .
-
-if "x%1"=="x--no-banner" goto nobanner
-..\bin\tool\dist banner
-:nobanner
-
-goto end
-
-:fail
-set GOBUILDFAIL=1
-
-:end
+:: Copyright 2012 The Go Authors. All rights reserved.\r
+:: Use of this source code is governed by a BSD-style\r
+:: license that can be found in the LICENSE file.\r
+\r
+:: Environment variables that control make.bat:\r
+::\r
+:: GOROOT_FINAL: The expected final Go root, baked into binaries.\r
+:: The default is the location of the Go tree during the build.\r
+::\r
+:: GOHOSTARCH: The architecture for host tools (compilers and\r
+:: binaries). Binaries of this type must be executable on the current\r
+:: system, so the only common reason to set this is to set\r
+:: GOHOSTARCH=386 on an amd64 machine.\r
+::\r
+:: GOARCH: The target architecture for installed packages and tools.\r
+::\r
+:: GOOS: The target operating system for installed packages and tools.\r
+::\r
+:: GO_GCFLAGS: Additional go tool compile arguments to use when\r
+:: building the packages and commands.\r
+::\r
+:: GO_LDFLAGS: Additional go tool link arguments to use when\r
+:: building the commands.\r
+::\r
+:: CGO_ENABLED: Controls cgo usage during the build. Set it to 1\r
+:: to include all cgo related files, .c and .go file with "cgo"\r
+:: build directive, in the build. Set it to 0 to ignore them.\r
+::\r
+:: CC: Command line to run to compile C code for GOHOSTARCH.\r
+:: Default is "gcc".\r
+::\r
+:: CC_FOR_TARGET: Command line to run compile C code for GOARCH.\r
+:: This is used by cgo. Default is CC.\r
+::\r
+:: FC: Command line to run to compile Fortran code.\r
+:: This is used by cgo. Default is "gfortran".\r
+\r
+@echo off\r
+\r
+:: Keep environment variables within this script\r
+:: unless invoked with --no-local.\r
+if x%1==x-no-local goto nolocal\r
+if x%2==x-no-local goto nolocal\r
+if x%3==x-no-local goto nolocal\r
+if x%4==x-no-local goto nolocal\r
+if x%1==x--no-local goto nolocal\r
+if x%2==x--no-local goto nolocal\r
+if x%3==x--no-local goto nolocal\r
+if x%4==x--no-local goto nolocal\r
+setlocal\r
+:nolocal\r
+\r
+set GOBUILDFAIL=0\r
+\r
+if exist make.bat goto ok\r
+echo Must run make.bat from Go src directory.\r
+goto fail\r
+:ok\r
+\r
+:: Clean old generated file that will cause problems in the build.\r
+del /F ".\pkg\runtime\runtime_defs.go" 2>NUL\r
+\r
+:: Set GOROOT for build.\r
+cd ..\r
+set GOROOT_TEMP=%CD%\r
+set GOROOT=\r
+cd src\r
+set vflag=\r
+if x%1==x-v set vflag=-v\r
+if x%2==x-v set vflag=-v\r
+if x%3==x-v set vflag=-v\r
+if x%4==x-v set vflag=-v\r
+\r
+if not exist ..\bin\tool mkdir ..\bin\tool\r
+\r
+:: Calculating GOROOT_BOOTSTRAP\r
+if not "x%GOROOT_BOOTSTRAP%"=="x" goto bootstrapset\r
+for /f "tokens=*" %%g in ('where go 2^>nul') do (\r
+ if "x%GOROOT_BOOTSTRAP%"=="x" (\r
+ setlocal\r
+ call :nogoenv\r
+ for /f "tokens=*" %%i in ('"%%g" env GOROOT 2^>nul') do (\r
+ endlocal\r
+ if /I not "%%i"=="%GOROOT_TEMP%" (\r
+ set GOROOT_BOOTSTRAP=%%i\r
+ )\r
+ )\r
+ )\r
+)\r
+\r
+set bootgo=1.20.6\r
+if "x%GOROOT_BOOTSTRAP%"=="x" if exist "%HOMEDRIVE%%HOMEPATH%\go%bootgo%" set GOROOT_BOOTSTRAP=%HOMEDRIVE%%HOMEPATH%\go%bootgo%\r
+if "x%GOROOT_BOOTSTRAP%"=="x" if exist "%HOMEDRIVE%%HOMEPATH%\sdk\go%bootgo%" set GOROOT_BOOTSTRAP=%HOMEDRIVE%%HOMEPATH%\sdk\go%bootgo%\r
+if "x%GOROOT_BOOTSTRAP%"=="x" set GOROOT_BOOTSTRAP=%HOMEDRIVE%%HOMEPATH%\Go1.4\r
+\r
+:bootstrapset\r
+if not exist "%GOROOT_BOOTSTRAP%\bin\go.exe" goto bootstrapfail\r
+set GOROOT=%GOROOT_TEMP%\r
+set GOROOT_TEMP=\r
+\r
+setlocal\r
+call :nogoenv\r
+for /f "tokens=*" %%g IN ('"%GOROOT_BOOTSTRAP%\bin\go" version') do (set GOROOT_BOOTSTRAP_VERSION=%%g)\r
+set GOROOT_BOOTSTRAP_VERSION=%GOROOT_BOOTSTRAP_VERSION:go version =%\r
+echo Building Go cmd/dist using %GOROOT_BOOTSTRAP%. (%GOROOT_BOOTSTRAP_VERSION%)\r
+if x%vflag==x-v echo cmd/dist\r
+set GOROOT=%GOROOT_BOOTSTRAP%\r
+set GOBIN=\r
+"%GOROOT_BOOTSTRAP%\bin\go.exe" build -o cmd\dist\dist.exe .\cmd\dist\r
+endlocal\r
+if errorlevel 1 goto fail\r
+.\cmd\dist\dist.exe env -w -p >env.bat\r
+if errorlevel 1 goto fail\r
+call .\env.bat\r
+del env.bat\r
+if x%vflag==x-v echo.\r
+\r
+if x%1==x-dist-tool goto copydist\r
+if x%2==x-dist-tool goto copydist\r
+if x%3==x-dist-tool goto copydist\r
+if x%4==x-dist-tool goto copydist\r
+if x%1==x--dist-tool goto copydist\r
+if x%2==x--dist-tool goto copydist\r
+if x%3==x--dist-tool goto copydist\r
+if x%4==x--dist-tool goto copydist\r
+\r
+set bootstrapflags=\r
+if x%1==x-no-clean set bootstrapflags=-no-clean\r
+if x%2==x-no-clean set bootstrapflags=-no-clean\r
+if x%3==x-no-clean set bootstrapflags=-no-clean\r
+if x%4==x-no-clean set bootstrapflags=-no-clean\r
+if x%1==x--no-clean set bootstrapflags=-no-clean\r
+if x%2==x--no-clean set bootstrapflags=-no-clean\r
+if x%3==x--no-clean set bootstrapflags=-no-clean\r
+if x%4==x--no-clean set bootstrapflags=-no-clean\r
+if x%1==x-no-banner set bootstrapflags=%bootstrapflags% -no-banner\r
+if x%2==x-no-banner set bootstrapflags=%bootstrapflags% -no-banner\r
+if x%3==x-no-banner set bootstrapflags=%bootstrapflags% -no-banner\r
+if x%4==x-no-banner set bootstrapflags=%bootstrapflags% -no-banner\r
+if x%1==x--no-banner set bootstrapflags=%bootstrapflags% -no-banner\r
+if x%2==x--no-banner set bootstrapflags=%bootstrapflags% -no-banner\r
+if x%3==x--no-banner set bootstrapflags=%bootstrapflags% -no-banner\r
+if x%4==x--no-banner set bootstrapflags=%bootstrapflags% -no-banner\r
+if x%1==x-distpack set bootstrapflags=%bootstrapflags% -distpack\r
+if x%2==x-distpack set bootstrapflags=%bootstrapflags% -distpack\r
+if x%3==x-distpack set bootstrapflags=%bootstrapflags% -distpack\r
+if x%4==x-distpack set bootstrapflags=%bootstrapflags% -distpack\r
+if x%1==x--distpack set bootstrapflags=%bootstrapflags% -distpack\r
+if x%2==x--distpack set bootstrapflags=%bootstrapflags% -distpack\r
+if x%3==x--distpack set bootstrapflags=%bootstrapflags% -distpack\r
+if x%4==x--distpack set bootstrapflags=%bootstrapflags% -distpack\r
+\r
+:: Run dist bootstrap to complete make.bash.\r
+:: Bootstrap installs a proper cmd/dist, built with the new toolchain.\r
+:: Throw ours, built with the bootstrap toolchain, away after bootstrap.\r
+.\cmd\dist\dist.exe bootstrap -a %vflag% %bootstrapflags%\r
+if errorlevel 1 goto fail\r
+del .\cmd\dist\dist.exe\r
+goto :eof\r
+\r
+:: DO NOT ADD ANY NEW CODE HERE.\r
+:: The bootstrap+del above are the final step of make.bat.\r
+:: If something must be added, add it to cmd/dist's cmdbootstrap,\r
+:: to avoid needing three copies in three different shell languages\r
+:: (make.bash, make.bat, make.rc).\r
+\r
+:copydist\r
+mkdir "%GOTOOLDIR%" 2>NUL\r
+copy cmd\dist\dist.exe "%GOTOOLDIR%\"\r
+goto :eof\r
+\r
+:nogoenv\r
+set GO111MODULE=off\r
+set GOENV=off\r
+set GOOS=\r
+set GOARCH=\r
+set GOEXPERIMENT=\r
+set GOFLAGS=\r
+goto :eof\r
+\r
+:bootstrapfail\r
+echo ERROR: Cannot find %GOROOT_BOOTSTRAP%\bin\go.exe\r
+echo Set GOROOT_BOOTSTRAP to a working Go tree ^>= Go %bootgo%.\r
+\r
+:fail\r
+set GOBUILDFAIL=1\r
+if x%GOBUILDEXIT%==x1 exit %GOBUILDFAIL%\r