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Re: BUG -> [19990526.004] perl5.005_57 error in util.c on sun4-solaris2.6
[perl5.git] / hints /
0093f865 1# hints/
bd89102f 2# Last modified: Wed May 27 11:00:02 EDT 1998
0093f865 3# Andy Dougherty <>
a0d0e21e 5case "$cc" in
54000519 6*gcc*) usevfork=false
7 # GNU as and GNU ld might not work. See the INSTALL file.
8 ;;
9*) usevfork=true ;;
0093f865 11
12# Configure will issue a WHOA warning. The problem is that
13# Configure finds getzname, not tzname. If you're in the System V
14# environment, you can set d_tzname='define' since tzname[] is
15# available in the System V environment.
a0d0e21e 16d_tzname='undef'
0093f865 17
54000519 18# Configure will issue a WHOA warning. The problem is that unistd.h
19# contains incorrect prototypes for some functions in the usual
20# BSD-ish environment. In particular, it has
21# extern int getgroups(/* int gidsetsize, gid_t grouplist[] */);
22# but groupslist[] ought to be of type int, not gid_t.
23# This is only really a problem for perl if the
24# user is using gcc, and not running in the SysV environment.
25# The gcc fix-includes script exposes those incorrect prototypes.
26# There may be other examples as well. Volunteers are welcome to
27# track them all down :-). In the meantime, we'll just skip unistd.h
28# for SunOS in most of the code.
29# However, see ext/POSIX/hints/ for one exception.
54000519 30i_unistd='undef'
31# See util.c for another: We need _SC_OPEN_MAX, which is in
32# <unistd.h>.
33util_cflags='ccflags="$ccflags -DI_UNISTD"'
54000519 34
35cat << 'EOM' >&4
37You will probably see *** WHOA THERE!!! *** messages from Configure for
38d_tzname and i_unistd. Keep the recommended values. See
39hints/ for more information.
42# The correct setting of groupstype depends on which version of the C
43# library is used. If you are in the 'System V environment'
44# (i.e. you have /usr/5bin ahead of /usr/bin in your PATH), and
45# you use Sun's cc compiler, then you'll pick up /usr/5bin/cc, which
46# links against the C library in /usr/5lib. This library has
47# groupstype='gid_t'.
48# If you are in the normal BSDish environment, then you'll pick up
49# /usr/ucb/cc, which links against the C library in /usr/lib. That
50# library has groupstype='int'.
52# If you are using gcc, it links against the C library in /usr/lib
53# independent of whether or not you are in the 'System V environment'.
54# If you want to use the System V libraries, then you need to
55# manually set groupstype='gid_t' and add explicit references to
56# /usr/5lib when Configure prompts you for where to look for libraries.
90248788 58# Check if user is in a bsd or system 5 type environment
59if cat -b /dev/null 2>/dev/null
60then # bsd
61 groupstype='int'
62else # sys5
63 case "$cc" in
64 *gcc*) groupstype='int';; # gcc doesn't do anything special
65 *) groupstype='gid_t';; # /usr/5bin/cc pulls in /usr/5lib/ stuff.
66 esac
a0d0e21e 67fi
77c65e92 68
69# If you get the message "unresolved symbol '__lib_version' " while
70# linking, your system probably has the optional 'acc' compiler (and
71# libraries) installed, but you are using the bundled 'cc' compiler with
72# the unbundled libraries. The solution is either to use 'acc' and the
73# unbundled libraries (specifically /lib/libm.a), or 'cc' and the bundled
74# library.
76# Thanks to William Setzer <> for this info.