+=head2 Build Anomalies with Perl on OS/390
+
+"Out of memory!" messages during the build of Perl are most often fixed
+by re building the GNU make utility for OS/390 from a source code kit.
+
+Another memory limiting item to check is your MAXASSIZE parameter in your
+'SYS1.PARMLIB(BPXPRMxx)' data set (note too that as of V2R8 address space
+limits can be set on a per user ID basis in the USS segment of a RACF
+profile). People have reported successful builds of Perl with MAXASSIZE
+parameters as small as 503316480 (and it may be possible to build Perl
+with a MAXASSIZE smaller than that).
+
+Within USS your /etc/profile or $HOME/.profile may limit your ulimit
+settings. Check that the following command returns reasonable values:
+
+ ulimit -a
+
+To conserve memory you should have your compiler modules loaded into the
+Link Pack Area (LPA/ELPA) rather than in a link list or step lib.
+
+If the c89 compiler complains of syntax errors during the build of the
+Socket extension then be sure to fix the syntax error in the system
+header /usr/include/sys/socket.h.
+
+=head2 Testing Anomalies with Perl on OS/390
+
+The "make test" step runs a Perl Verification Procedure, usually before
+installation. You might encounter STDERR messages even during a successful
+run of "make test". Here is a guide to some of the more commonly seen
+anomalies:
+
+=over 4
+
+=item *
+
+A message of the form:
+
+ io/openpid...........CEE5210S The signal SIGHUP was received.
+ CEE5210S The signal SIGHUP was received.
+ CEE5210S The signal SIGHUP was received.
+ ok
+
+indicates that the t/io/openpid.t test of Perl has passed but done so
+with extraneous messages on stderr from CEE.
+
+=item *
+
+A message of the form:
+
+ lib/ftmp-security....File::Temp::_gettemp: Parent directory (/tmp/)
+ is not safe (sticky bit not set when world writable?) at
+ lib/ftmp-security.t line 100
+ File::Temp::_gettemp: Parent directory (/tmp/) is not safe (sticky
+ bit not set when world writable?) at lib/ftmp-security.t line 100
+ ok
+
+indicates a problem with the permissions on your /tmp directory within the HFS.
+To correct that problem issue the command:
+
+ chmod a+t /tmp
+
+from an account with write access to the directory entry for /tmp.
+
+=item *
+
+Out of Memory!
+
+Recent perl test suite is quite memory hungry. In addition to the comments
+above on memory limitations it is also worth checking for _CEE_RUNOPTS
+in your environment. Perl now has (in miniperlmain.c) a C #pragma
+to set CEE run options, but the environment variable wins.
+
+The C code asks for:
+
+ #pragma runopts(HEAP(2M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON))
+
+The important parts of that are the second argument (the increment) to HEAP,
+and allowing the stack to be "Above the (16M) line". If the heap
+increment is too small then when perl (for example loading unicode/Name.pl) tries
+to create a "big" (400K+) string it cannot fit in a single segment
+and you get "Out of Memory!" - even if there is still plenty of memory
+available.
+
+A related issue is use with perl's malloc. Perl's malloc uses C<sbrk()>
+to get memory, and C<sbrk()> is limited to the first allocation so in this
+case something like:
+
+ HEAP(8M,500K,ANYWHERE,KEEP,8K,4K)
+
+is needed to get through the test suite.
+
+
+=back
+
+=head2 Installation Anomalies with Perl on OS/390
+
+The installman script will try to run on OS/390. There will be fewer errors
+if you have a roff utility installed. You can obtain GNU groff from the
+Redbook SG24-5944-00 ftp site.
+
+=head2 Usage Hints for Perl on OS/390
https://perl5.git.perl.org / perl5.git / blobdiff