Loading...
A quick-and-simple guide to installing musl: STEP 1: Configuration Edit config.mak to override installation prefix, compiler options, etc. as needed. The defaults should be okay for trying out musl with static linking only. The only arch supported at present is i386. If you're on an x86_64 machine, you can add -m32 to the compiler options to build a working 32bit musl. In this case you will also need to add -m32 in two locations in the generated tools/musl-gcc script if you intend to use it. DO NOT set the prefix to /, /usr, or even /usr/local unless you really know what you're doing! You'll probably break your system such that you'll no longer be able to compile and link programs against glibc! This kind of setup should only be used if you're building a system where musl is the default/primary/only libc. The default prefix is /usr/local/musl for a reason, but some people may prefer /opt/musl or $HOME/musl. STEP 2: Compiling Run "make". (GNU make is required.) STEP 3: Installation With appropriate privileges, run "make install". STEP 4: Using the gcc wrapper. musl comes with a script "musl-gcc" (installed in /usr/local/bin by default) that can be used to compile and link C programs against musl. It requires a version of gcc with the -wrapper option (gcc 4.x should work). For example: cat > hello.c <<EOF #include <stdio.h> int main() { printf("hello, world!\n"); return 0; } EOF musl-gcc hello.c ./a.out For compiling programs that use autoconf, you'll need to configure them with a command like this: CC=musl-gcc ./configure Be aware that (at present) libraries linked against glibc are unlikely to be usable, and the musl-gcc wrapper inhibits search of the system library paths in any case. You'll need to compile any prerequisite libraries (like ncurses, glib, etc.) yourself. |