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|
// file : BOOTSTRAP-MSVC.cli
// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
"
Continuing from \l{#BOOTSTRAP-WINDOWS Bootstrapping on Windows}, if you have
already started an appropriate Visual Studio command prompt, then you can
continue using it. Otherwise, start the \"x64 Native Tools Command Prompt\" if
you are on 64-bit Windows or \"x86 Native Tools Command Prompt\" if you are on
32-bit. Also set the \c{PATH} environment variable:
\
> set PATH=C:\build2\bin;%PATH%
\
To build with MSVC you can either perform the following steps manually or, if
after reviewing the steps you are happy with using the defaults, run the
\c{build-msvc.bat} batch file. It performs (and echoes) the same set of steps
as outlined below but only allows you to customize the installation
directory (run \c{build-msvc.bat /?} for usage). You can also specify an
alternative package repository with the \c{BUILD2_REPO} environment variable.
For example, you could run this batch file (from the above-mentioned command
prompt) like this:
\
> .\build-msvc.bat
\
Note also that at about half way through (\c{bpkg fetch} at step 4 below) the
script will stop and prompt you to verify the authenticity of the repository
certificate.
The end result of the bootstrap process (performed either with the script or
manually) is the installed toolchain as well as the \c{bpkg} configuration in
\c{build2-toolchain-X.Y\\} that can be used to \l{#UPGRADE upgrade} to newer
versions. It can also be used to uninstall the toolchain:
\
> cd build2-toolchain-X.Y
> bpkg uninstall build2 bpkg
\
The rest of this section outlines the manual bootstrap process.
\dl|
\li|\b{1. Bootstrap, Phase 1}\n
First, we build a minimal build system with the provided
\c{bootstrap-msvc.bat} batch file. Normally, the only argument you will pass
to this script is the C++ compiler to use but there is also a way to specify
compile options; run \c{bootstrap-msvc.bat /?} and see the \c{build2\\INSTALL}
file for details.
\
> cd build2
> .\bootstrap-msvc.bat cl
> build2\b-boot --version
\
|
\li|\n\b{2. Bootstrap, Phase 2}\n
Then, we rebuild the build system with the result of Phase 1 linking libraries
statically.
\
> build2\b-boot config.cxx=cl config.bin.lib=static
> move /y build2\b.exe build2\b-boot.exe
> build2\b-boot --version
\
|
\li|\n\b{3. Stage}\n
At this step the entire toolchain is built and staged:
\
> cd .. # Back to build2-toolchain-X.Y.Z\
> build2\build2\b-boot configure ^
config.cxx=cl ^
config.bin.suffix=-stage ^
config.install.root=C:\build2 ^
config.install.data_root=root\stage
> build2\build2\b-boot install
\
The strange-looking \c{config.install.data_root=root\\stage} means install
data files (as opposed to executable files) into the \c{stage\\} subdirectory
of wherever \c{config.install.root} points to (so in our case it will be
\c{C:\\build2\\stage\\}). This subdirectory is temporary and will be removed
in a few steps.
Verify that the toolchain binaries can be found and work (this relies on the
\c{PATH} environment variable we have set earlier):
\
> where b-stage
C:\build2\bin\b-stage.exe
> where bpkg-stage
C:\build2\bin\bpkg-stage.exe
> b-stage --version
> bpkg-stage --version
\
At the next step we will use \c{bpkg} to build and install the \"final\"
toolchain. If for some reason you prefer not to build from packages (for
example, because the machine is offline), then you can convert this step into
the \"final\" installation and skip the rest. For this you will need to
change the \c{configure} command line above along these lines:
\
> build2\build2\b-boot configure ^
config.cxx=cl ^
\"config.cc.coptions=/O2 /Oi\" ^
config.install.root=C:\build2
\
|
\li|\n\b{4. Install}\n
Next, we use the staged toolchain to build and install the \"final\" toolchain
from the package repository using the \c{bpkg} package manager. First, we
create the \c{bpkg} configuration. The configuration values are pretty similar
to the previous step and you may want/need to make similar adjustments.
\
> cd .. # Back to build2-build\
> md build2-toolchain-X.Y
> cd build2-toolchain-X.Y
> bpkg-stage create ^
cc ^
config.cxx=cl ^
\"config.cc.coptions=/O2 /Oi\" ^
config.install.root=C:\build2
\
Next, we add the package repository, build, and install:
\
> bpkg-stage add https://pkg.cppget.org/1/alpha
> bpkg-stage fetch
> bpkg-stage build build2 bpkg
> bpkg-stage install build2 bpkg
\
Finally, we verify the result:
\
> where b
C:\build2\bin\b.exe
> where bpkg
C:\build2\bin\bpkg.exe
> b --version
> bpkg --version
\
|
\li|\n\b{5. Clean}\n
The last thing we need to do is uninstall the staged toolchain:
\
> cd ..\build2-toolchain-X.Y.Z # Back to bootstrap.
> b uninstall
\
||
"
|
