(mysql.info.gz) SGI-Irix
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2.12.5.7 SGI Irix Notes
.......................
If you are using Irix Version 6.5.3 or newer, `mysqld' will be able to
create threads only if you run it as a user that has `CAP_SCHED_MGT'
privileges (such as `root') or give the `mysqld' server this privilege
with the following shell command:
chcap "CAP_SCHED_MGT+epi" /opt/mysql/libexec/mysqld
You may have to undefine some symbols in `config.h' after running
`configure' and before compiling.
In some Irix implementations, the `alloca()' function is broken. If the
`mysqld' server dies on some `SELECT' statements, remove the lines from
`config.h' that define `HAVE_ALLOC' and `HAVE_ALLOCA_H'. If
`mysqladmin create' doesn't work, remove the line from `config.h' that
defines `HAVE_READDIR_R'. You may have to remove the `HAVE_TERM_H'
line as well.
SGI recommends that you install all the patches on this page as a set:
`http://support.sgi.com/surfzone/patches/patchset/6.2_indigo.rps.html'
At the very minimum, you should install the latest kernel rollup, the
latest `rld' rollup, and the latest `libc' rollup.
You definitely need all the POSIX patches on this page, for pthreads
support:
`http://support.sgi.com/surfzone/patches/patchset/6.2_posix.rps.html'
If you get the something like the following error when compiling
`mysql.cc':
"/usr/include/curses.h", line 82: error(1084):
invalid combination of type
Type the following in the top-level directory of your MySQL source tree:
extra/replace bool curses_bool < /usr/include/curses.h > include/curses.h
make
There have also been reports of scheduling problems. If only one
thread is running, performance is slow. Avoid this by starting another
client. This may lead to a two-to-tenfold increase in execution speed
thereafter for the other thread. This is a poorly understood problem
with Irix threads; you may have to improvise to find solutions until
this can be fixed.
If you are compiling with `gcc', you can use the following `configure'
command:
CC=gcc CXX=gcc CXXFLAGS=-O3 \
./configure --prefix=/usr/local/mysql --enable-thread-safe-client \
--with-named-thread-libs=-lpthread
On Irix 6.5.11 with native Irix C and C++ compilers ver. 7.3.1.2, the
following is reported to work
CC=cc CXX=CC CFLAGS='-O3 -n32 -TARG:platform=IP22 -I/usr/local/include \
-L/usr/local/lib' CXXFLAGS='-O3 -n32 -TARG:platform=IP22 \
-I/usr/local/include -L/usr/local/lib' \
./configure --prefix=/usr/local/mysql --with-innodb --with-berkeley-db \
--with-libwrap=/usr/local \
--with-named-curses-libs=/usr/local/lib/libncurses.a
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