This is good to see already :) I expect it builds fine on GNU/Linux, with GCC and Clang, unless hardening options are used, then these warnings would be treated as errors:
> In file included from md5/md5_locl.h:98:0, > from md5/md5_dgst.c:60: > md5/md5_dgst.c: In function 'md5_block_data_order': > ./md32_common.h:237:66: warning: right-hand operand of comma expression has > no effect [-Wunused-value] > # define HOST_c2l(c,l) ((l)=*((const unsigned int *)(c)), (c)+=4, l) > ^ > md5/md5_dgst.c:107:2: note: in expansion of macro 'HOST_c2l' > HOST_c2l(data,l); X( 0)=l; HOST_c2l(data,l); X( 1)=l; > ^ > ./md32_common.h:213:41: warning: right-hand operand of comma expression has > no effect [-Wunused-value] > l|=(((unsigned long)(*((c)++))) ), \ > ^ > sha/sha256.c:245:3: note: in expansion of macro 'HOST_c2l' > HOST_c2l(data,l); T1 = X[0] = l; ROUND_00_15(0,a,b,c,d,e,f,g,h); > ^ We'd want to configure with --disable-silent-rules, if debhelper scripts don't already do that. Compiling on GNU/kFreeBSD is possible (and potentially GNU/Hurd) but requires the attached patch *and* a solution for getentropy: 1. try to use getentropy_linux.c - but would have to disable use of Linux-specific sysctls and headers; it is dangerous to rely on only /dev/random, so we should implement replacement sysctls to use on FreeBSD - that could be a bit messy 2. create a new getentropy_freebsd.c - but seems silly as FreeBSD itself does not need it (see solution 3); also does not help GNU/Hurd 3. (my preference) link with libbsd, which already provides a arc4random_buf and so getentropy is not needed at all - WARNING: the libbsd arc4random implementation still uses RC4 at the moment (as on FreeBSD), but OpenBSD has already changed it to use ChaCha20 (see Bug #747671); we'd also want to make sure libbsd's entropy gathering is at least as robust as in getentropy_linux.c Regards, -- Steven Chamberlain ste...@pyro.eu.org
--- configure.orig 2014-07-11 18:42:02.000000000 +0100 +++ configure 2014-07-12 01:26:15.064409115 +0100 @@ -2915,7 +2915,7 @@ TARGET_OS=darwin; LDFLAGS="$LDFLAGS -Qunused-arguments" ;; - *linux*) + *linux* | *gnu*) TARGET_OS=linux; CFLAGS="$CFLAGS -D_BSD_SOURCE -D_POSIX_SOURCE -D_GNU_SOURCE" ;;
