On 31 Jan 2012, at 20:35, Mark H Weaver wrote: >>>> The 'make check' gives this error, on OS X 10.7.2 using the compiler >>>> i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 supplied by Xcode 4.2.1: >>>> >>>> PASS: test-asmobs >>>> bad return from expression `(f-sum -1 2000 -30000 40000000000)': expected >>>> 39999971999; got 39999972255 >>> >>> I may be stating the obvious here, but the -1, which is declared to be >>> of type 'scm_t_int8' in the C function being called, is apparently being >>> interpreted as 255. This suggests that whatever is handling its >>> promotion to a full int is failing to extend its sign bit. I'm guessing >>> that this is libffi's job. >> >> It is broken (libffi from GIT, the only that works on OX 10.7): > > You need to install DejaGnu in order to run libffi's test suite. > <http://www.gnu.org/software/dejagnu/>
After doing this, the same failure with the LLVM-GCC compiler: /usr/bin/cc -> llvm-gcc-4.2 /usr/bin/gcc -> llvm-gcc-4.2 i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 This is the compiler that one will use on OS X 10.7 if one installs Xcode 4.2.1, and is not setting the compiler explicitly (or overriding by another install). Hans PASS: test-asmobs bad return from expression `(f-sum -1 2000 -30000 40000000000)': expected 39999971999; got 39999972255 FAIL: test-ffi ... ================================== 1 of 28 tests failed Please report to bug-guile@gnu.org ==================================
