Note to those brave souls building clasp and externals-clasp on Sep 26, 2014
Clasp can be found at: https://github.com/drmeister/clasp
These are the external libraries that Clasp depends on. If there are legal issues with incorporating these libraries in this repository please tell me and I will fix it. All of these libraries are publically available on the internet.
Building externals-clasp
You need to have gcc 4.8 or higher to build externals-clasp.
To build everything from within the top level directory (externals-clasp/) do the following.
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Copy local.config.darwin or local.config.linux to local.config
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Edit local.config and configure it for your system
The following configuration variables are important:
| Variable | Description |
|---|---|
| EXTERNALS_BUILD_TARGET_DIR | This defines where make will put all of the built libraries |
| I use $HOME/local/externals-clasp | |
| TARGET_OS | Currently either linux or darwin |
| PJOBS | The number of processors you have available to build with |
| GCC_TOOLCHAIN | Important on Linux systems. |
| gcc and g++ must be found in $(GCC_TOOLCHAIN)/bin/ | |
| On a linux system with an up-to-date (>= 4.8) gcc/g++ you can use /usr | |
| GCC_EXECUTABLE | Set this if the gcc you use is NOT found at $(GCC_TOOLCHAIN)/bin/gcc |
| GXX_EXECUTABLE | Set this if the g++ you use is NOT found at $(GCC_TOOLCHAIN)/bin/g++ |
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Type: make - this will download llvm/clang, build everything and install it in $(EXTERNALS_BUILD_TARGET_DIR)
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Go to the Clasp library and configure and build it.
The libraries are built and put into the $PREFIX (see local.config) directory
Other useful make targets:
make setup - configures all libraries
make subAll - makes all libraries
make clean - Clean out all built files under this directory, but not the $PREFIX target directory.
make llvm-debug - Build the debug version of the LLVM library.