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Build remarks

This document intends to gather useful remarks related with the build. Being taken in consideration that you have already tried to follow the general build notes, besides the Hefesto's installing notes.

Clang's support

The version 0.0.4 have introduced the automatic usage of Clang compiler as second option. Then when GCC is not installed nor accessible, Clang is attempted.

This new automation introduces a new dependency which is the Hefesto's Clang toolset script files. If you just pulled the 0.0.4 changes into your old local copy and is using an old Hefesto's installation maybe you be facing errors like these during the build:

hefesto WARNING: unable to resolve file name "~/toolsets/clang/clang-app.hsl"
hefesto WARNING: unable to resolve file name "~/toolsets/clang/clang-app.hsl"

The warning shown above indicates that your Hefesto's copy does not have the Clang's toolset installed. For installing it you need to clone Helios and asks it for copying the Clang's toolset into your Hefesto's include base. As follows:

you@SOMEWHERE:~/over/the/rainbow# git clone https://github.com/rafael-santiago/helios
you@SOMEWHERE:~/over/the/rainbow# cd helios
you@SOMEWHERE:~/over/the/rainbow/helios# hefesto --install=clang-c-toolset

Now you can back to your pig's local copy and try to build it.

It should be working fine.

How to force the usage of one specific compiler

Until now the pig's build have written to support the usage of two compilers: GCC or Clang.

The default is GCC. When it is not present the Clang is attempted.

However, you can force the usage of one by the option --toolset=<toolset-name>. For GCC usage you should call:

you@SOMEWHERE:~/over/the/rainbow/pig/src# hefesto --toolset=gcc-c-app

For Clang:

you@SOMEWHERE:~/over/the/rainbow/pig/src# hefesto --toolset=clang-c-app