How to install clasp on gentoo

a.clasp.instructions.md

You will need gcc:4.8 installed; as of writing this is keyword masked, so unless you are already running ~, you'll need to add sys-devel/gcc:4.8 ~amd64 to your package.keywords. Note that you do not need it to be the default gcc, as clasp allows specifying gcc and g++ executables

Other than that, see the other files in this gist for the config.

1. Checkout clasp-externals and clasp
2. Copy clasp-externals.local.config from this gist to clasp-externals/local.config
3. Copy clasp.local.config from this gist to clasp/local.config
4. cd clasp-externals
5. make
6. If make fails, run it again. If it fails a third time, talk to jasom in #clasp on freenode
7. cd ../clasp
8. make
9. If make fails, run it again. If it fails a third time, talk to jasom in #clasp on freenode
10. You should now have clasp executables in ~/local/clasp/bin

clasp-externals.local.config

#
# What system are you building on?   linux or darwin
#
export TARGET_OS = linux

#
# This defines where externals-clasp will put the built libraries
# that clasp needs
#
export EXTERNALS_BUILD_TARGET_DIR = $(HOME)/local/externals-clasp

#
# This defines how many processors you have available to build with
# More processors = faster build
#
export PJOBS = 8

#
# This defines where gcc lives
# the gcc executable needs to be at $(GCC_TOOLCHAIN)/bin/gcc
# the g++ executable needs to be at $(GCC_TOOLCHAIN)/bin/g++
#
export GCC_TOOLCHAIN = /usr
export GCC_EXECUTABLE = /usr/bin/gcc-4.8.3
export GXX_EXECUTABLE = /usr/bin/g++-4.8.3
#
# ------- Only change if you know what you are doing -------
#
export TOOLSET = gcc

clasp.local.config

#
# What system are you building on?   linux or darwin
#
export TARGET_OS = linux

#
# This defines where clasp should put the built clasp application
#
export CLASP_BUILD_TARGET_DIR = $(HOME)/local/clasp

#
# This defines where externals-clasp put the built libraries
# that clasp needs
#
export EXTERNALS_BUILD_TARGET_DIR = $(HOME)/local/externals-clasp

#
# This defines how many processors you have available to build with
# More processors = faster build
#
export PJOBS = 1


# --- Dont change the stuff below ---
export LINK = static
export ADDRESS-MODEL = 64