require 'formula' class Libffi < Formula homepage 'http://sourceware.org/libffi/' url 'http://mirrors.kernel.org/sources.redhat.com/libffi/libffi-3.0.13.tar.gz' mirror 'ftp://sourceware.org/pub/libffi/libffi-3.0.13.tar.gz' sha1 'f5230890dc0be42fb5c58fbf793da253155de106' keg_only :provided_by_osx, "Some formulae require a newer version of libffi." def install ENV.universal_binary system "./configure", "--disable-debug", "--disable-dependency-tracking", "--prefix=#{prefix}" system "make install" end test do (testpath/'closure.c').write <<-TEST_SCRIPT.undent #include #include /* Acts like puts with the file given at time of enclosure. */ void puts_binding(ffi_cif *cif, unsigned int *ret, void* args[], FILE *stream) { *ret = fputs(*(char **)args[0], stream); } int main() { ffi_cif cif; ffi_type *args[1]; ffi_closure *closure; int (*bound_puts)(char *); int rc; /* Allocate closure and bound_puts */ closure = ffi_closure_alloc(sizeof(ffi_closure), &bound_puts); if (closure) { /* Initialize the argument info vectors */ args[0] = &ffi_type_pointer; /* Initialize the cif */ if (ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, &ffi_type_uint, args) == FFI_OK) { /* Initialize the closure, setting stream to stdout */ if (ffi_prep_closure_loc(closure, &cif, puts_binding, stdout, bound_puts) == FFI_OK) { rc = bound_puts("Hello World!"); /* rc now holds the result of the call to fputs */ } } } /* Deallocate both closure, and bound_puts */ ffi_closure_free(closure); return 0; } TEST_SCRIPT ENV['PKG_CONFIG_PATH'] = "#{opt_prefix}/lib/pkgconfig" flags = `pkg-config --cflags --libs libffi`.split + ENV.cflags.split system ENV.cc, "-o", "closure", "closure.c", *flags system "./closure" end end