35cdd4619f
old versions of gcc, such as 4.2.1 which I'm in the process of adding support for, have broken configure scripts that do not accept variables on the command line and instead interpret them as the target name. the easiest solution is just passing these in the environment.
musl-cross-make
This is a quick and simple makefile-based alternative for producing musl-based cross compilers. In addition to the build system, it provides a number of patches, including:
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Updated versions of the musl target patches going into upstream GCC
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Static-PIE support and enabling PIE as default
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Fixes for SH-specific bugs and bitrot in GCC
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Support for J2 Core CPU target in GCC & binutils
The current focus is on SH2/J2 Core targets and NOMMU (where PIE is mandatory) since these are not adequately supported by other musl cross-compiler toolchain build systems.
Usage
To build, copy the provided config.mak.dist to config.mak and edit then run make. Parallel builds are supported. The host needs to have suitable gmp/mpfr/mpc libraries installed in the standard library path, or you can add the appropriate --with options to GCC_CONFIG.
At present only GCC 5.2.0 and Binutils 2.25.1 are supported. Backporting of patches is needed to support other versions.
The included patches should also be usable with Gregor's original musl-cross or other build systems, if desired.