]> git.saurik.com Git - apt.git/blame_incremental - COMPILING
silence gcc/g++ warnings on libc/stdc++ version tests
[apt.git] / COMPILING
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1General Information
2~~~~~~~~~~~~~~~~~~~
3To compile this you need a couple things
4 - A working POSIX system with working POSIX gcc, g++, make (GNU),
5 ar, sh, awk and sed in the path
6 - GNU Make 3.74 or so, -- normal UNIX make will NOT work
7 * Note 3.77 is broken.
8 - A working ANSI C++ compiler, this is not g++ 2.7.*
9 g++ 2.8 works OK and newer egcs work well also. Nobody has tried it
10 on other compilers :< You will need a properly working STL as well.
11 - A C library with the usual POSIX functions and a BSD socket layer.
12 If you OS conforms to the Single User Spec then you are fine:
13 http://www.opengroup.org/onlinepubs/7908799/index.html
14
15Guidelines
16~~~~~~~~~~
17I am not interested in making 'ultra portable code'. I will accept patches
18to make the code that already exists conform more to SUS or POSIX, but
19I don't really care if your not-SUS OS doesn't work. It is simply too
20much work to maintain patches for dysfunctional OSs. I highly suggest you
21contact your vendor and express intrest in a conforming C library.
22
23That said, there are lots of finniky problems that must be delt with even
24between the supported OS's. Primarily the path I choose to take is to put
25a shim header file in build/include that transparently adds the required
26functionality. Patches to make autoconf detect these cases and generate the
27required shims are OK.
28
29Current shims:
30 * C9x integer types 'inttypes.h'
31 * sys/statvfs.h to convert from BSD/Linux statfs to SUS statvfs
32 * rfc2553 hostname resolution (methods/rfc*), shims to normal gethostbyname.
33 The more adventerous could steal the KAME IPv6 enabled resolvers for those
34 OS's with IPv6 support but no rfc2553 (why?)
35 * define _XOPEN_EXTENDES_SOURCE to bring in h_errno on HP-UX
36 * socklen_t shim in netdb.h if the OS does not have socklen_t
37
38The only completely non-shimed OS is Linux with glibc2.1, glibc2.0 requires
39the first three shims.
40
41Platform Notes
42~~~~~~~~~~~~~~
43Debian GNU Linux 2.1 'slink'
44Debian GNU Linux 'potato'
45 * All Archs
46 - Works flawlessly
47 - You will want to have debiandoc-sgml and yodl installed to get
48 best results.
49 - No IPv6 Support in glibc's < 2.1.
50
51Sun Solaris
52 SunOS cab101 5.7 Generic_106541-04 sun4u sparc
53 - Works fine
54 - Note, no IPv6 Support, OS lacks RFC 2553 hostname resolution
55
56OpenBSD
57 OpenBSD gsb086 2.5 CMPUT#0 i386 unknown
58 - Works fine
59 - OS needs 'ranlib' to generate the symbol table after 'ar'.. (not using
60 GNU ar with the gnu tool chain :<)
61 - Note, no IPv6 Support, OS lacks RFC 2553 hostname resolution
62
63HP-UX
64 HP-UX nyquist B.10.20 C 9000/780 2016574337 32-user license
65 - Evil OS, does not conform very well to SUS
66 1) snprintf exists but is not prototyped, ignore spurios warnings
67 2) No socklen_t
68 3) Requires -D_XOPEN_SOURCE_EXTENDED for h_errno
69 configure should fix the last two (see above)
70 - Note, no IPv6 Support, OS lacks RFC 2553 hostname resolution
71