# hints/sunos_4_1.sh
-# Last modified: Thu Feb 8 11:46:05 EST 1996
+# Last modified: Wed May 27 11:00:02 EDT 1998
# Andy Dougherty <doughera@lafcol.lafayette.edu>
case "$cc" in
# The gcc fix-includes script exposes those incorrect prototypes.
# There may be other examples as well. Volunteers are welcome to
# track them all down :-). In the meantime, we'll just skip unistd.h
-# for SunOS.
+# for SunOS in most of the code.
+# However, see ext/POSIX/hints/sunos_4.pl for one exception.
i_unistd='undef'
+# See util.c for another: We need _SC_OPEN_MAX, which is in
+# <unistd.h>.
+
+# fflush(NULL) will core dump on SunOS 4.1.3. In util.c we'll
+# try explicitly fflushing all open files. Unfortunately,
+# on my SunOS 4.1.3 system, sysconf(_SC_OPEN_MAX) returns
+# 64, but only 32 of those file pointers can be accessed
+# directly by _iob[i]. The remainder are off in dynamically
+# allocated memory somewhere and I don't know to automatically
+# fflush() them. -- Andy Dougherty Wed May 26 15:25:22 EDT 1999
+util_cflags='ccflags="$ccflags -DPERL_FFLUSH_ALL_FOPEN_MAX=32"'
cat << 'EOM' >&4
hints/sunos_4_1.sh for more information.
EOM
-# SunOS 4.1.3 has two extra fields in struct tm. This works around
-# the problem. Other BSD platforms may have similar problems.
-POSIX_cflags='ccflags="$ccflags -DSTRUCT_TM_HASZONE"'
-
-# check if user is in a bsd or system 5 type environment
+# The correct setting of groupstype depends on which version of the C
+# library is used. If you are in the 'System V environment'
+# (i.e. you have /usr/5bin ahead of /usr/bin in your PATH), and
+# you use Sun's cc compiler, then you'll pick up /usr/5bin/cc, which
+# links against the C library in /usr/5lib. This library has
+# groupstype='gid_t'.
+# If you are in the normal BSDish environment, then you'll pick up
+# /usr/ucb/cc, which links against the C library in /usr/lib. That
+# library has groupstype='int'.
+#
+# If you are using gcc, it links against the C library in /usr/lib
+# independent of whether or not you are in the 'System V environment'.
+# If you want to use the System V libraries, then you need to
+# manually set groupstype='gid_t' and add explicit references to
+# /usr/5lib when Configure prompts you for where to look for libraries.
+#
+# Check if user is in a bsd or system 5 type environment
if cat -b /dev/null 2>/dev/null
then # bsd
groupstype='int'
else # sys5
- groupstype='gid_t'
+ case "$cc" in
+ *gcc*) groupstype='int';; # gcc doesn't do anything special
+ *) groupstype='gid_t';; # /usr/5bin/cc pulls in /usr/5lib/ stuff.
+ esac
fi
-
+
+# If you get the message "unresolved symbol '__lib_version' " while
+# linking, your system probably has the optional 'acc' compiler (and
+# libraries) installed, but you are using the bundled 'cc' compiler with
+# the unbundled libraries. The solution is either to use 'acc' and the
+# unbundled libraries (specifically /lib/libm.a), or 'cc' and the bundled
+# library.
+#
+# Thanks to William Setzer <William_Setzer@ncsu.edu> for this info.