[swift-users] Bootstrapping ninja and building from source

[Lane Schwartz]

On Fri, Dec 4, 2015 at 1:36 PM, Daniel Dunbar <daniel_dunbar at apple.com>
wrote:

> Hi Lane,
>
> You shouldn't need to install re2c to build Ninja.
>
> This looks like something is wrong in the build script. It did
> successfully build Ninja, but it isn't getting found by CMake for the mark
> build.
>
> Can you open an SR for this on bugs.swift.org?
>
> If you want to debug yourself, it looks like the PATH export at
> utils/build-script-impl:1287 isn't working, it should have let ninja be
> found for the rest of the commands.
>
>  - Daniel
>
> On Dec 4, 2015, at 11:22 AM, Lane Schwartz <dowobeha at gmail.com> wrote:
>
> Hi,
>
> First of all, congratulations on the open source release! I'm very excited!
>
> Second, I'm running into trouble building from source, particularly in
> regards to getting ninja bootstrapped. I'm on Scientific Linux. I first
> used yum to install packages for llvm, llvm-devel, clang, and cmake.
>
> I then did the following, following the README.md in the swift git repo:
>
>  git clone git at github.com:apple/swift.git swift
>  git clone git at github.com:apple/swift-llvm.git llvm
>  git clone git at github.com:apple/swift-clang.git clang
>  git clone git at github.com:apple/swift-lldb.git lldb
>  git clone git at github.com:apple/swift-cmark.git cmark
>  git clone git at github.com:apple/swift-llbuild.git llbuild
>  git clone git at github.com:apple/swift-package-manager.git swiftpm
>  git clone git at github.com:apple/swift-corelibs-xctest.git
>  git clone git at github.com:apple/swift-corelibs-foundation.git
>
>
> The README.md also states:
>
> Ninja is the current recommended build system for building Swift and is
>> the default configuration generated by CMake. If you're on OS X or don't
>> install it as part of your Linux distribution, clone it next to the other
>> projects and it will be bootstrapped automatically
>
>
>  My Linux distro doesn't package ninja, so I also did this:
>
> git clone git at github.com:martine/ninja.git
>
> I then attempted to build swift:
>
> $ ./swift/utils/build-script
>
> Which resulted in errors, and as far as I can tell did not attempt to
> build the ninja distro that I downloaded into the ninja directory in my
> current working directory:
>
> which: no ninja in
>> (/usr/lib64/qt-3.3/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/lanes/.local/bin:/home/lanes/bin)
>> Building the standard library for: swift-stdlib-linux-x86_64
>> Running Swift tests for: check-swift-linux-x86_64
>> + rm -rf /home/lanes/swift/build/Ninja-DebugAssert/ninja-build
>> + cp -r /home/lanes/swift/ninja
>> /home/lanes/swift/build/Ninja-DebugAssert/ninja-build
>> ++ uname -s
>> + [[ Linux == \D\a\r\w\i\n ]]
>> + cd /home/lanes/swift/build/Ninja-DebugAssert/ninja-build
>> + python ./configure.py --bootstrap
>> bootstrapping ninja...
>> warning: A compatible version of re2c (>= 0.11.3) was not found; changes
>> to src/*.in.cc will not affect your build.
>> wrote build.ninja.
>> bootstrap complete.  rebuilding...
>> [24/24] LINK ninja
>> cmark: using standard linker
>> + cd /home/lanes/swift/build/Ninja-DebugAssert/cmark-linux-x86_64
>> + /usr/bin/cmake -G Ninja -DCMAKE_C_COMPILER:PATH=clang
>> -DCMAKE_CXX_COMPILER:PATH=clang++ -DCMAKE_BUILD_TYPE:STRING=Debug
>> /home/lanes/swift/cmark
>> CMake Error: CMake was unable to find a build program corresponding to
>> "Ninja".  CMAKE_MAKE_PROGRAM is not set.  You probably need to select a
>> different build tool.
>> CMake Error: Error required internal CMake variable not set, cmake may be
>> not be built correctly.
>> Missing variable is:
>> CMAKE_C_COMPILER_ENV_VAR
>> CMake Error: Could not find cmake module
>> file:/home/lanes/swift/build/Ninja-DebugAssert/cmark-linux-x86_64/CMakeFiles/2.8.11/CMakeCCompiler.cmake
>> CMake Error: Error required internal CMake variable not set, cmake may be
>> not be built correctly.
>> Missing variable is:
>> CMAKE_CXX_COMPILER_ENV_VAR
>> CMake Error: Could not find cmake module
>> file:/home/lanes/swift/build/Ninja-DebugAssert/cmark-linux-x86_64/CMakeFiles/2.8.11/CMakeCXXCompiler.cmake
>> -- Configuring incomplete, errors occurred!
>> ./swift/utils/build-script: command terminated with a non-zero exit
>> status 1, aborting
>
>
>
> This leads me to a couple of questions:
>
> * Do I need to first build and install re2c? If so, this should perhaps be
> mentioned as a prereq.
> * Is there anything differently I should be doing to get the bootstrap
> process running successfully?
>
> Thanks,
> Lane
>
>
>
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>
>
>
Issue created: https://bugs.swift.org/browse/SR-58
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