If you have problems compiling and have DEC CC and gcc installed, try running configure like this:
CC=cc CFLAGS=-O CXX=gcc CXXFLAGS=-O3 \ ./configure --prefix=/usr/local/mysql
If you get problems with the
file, you can create and use a 'dummy'
c_asm.h file with:
touch include/c_asm.h CC=gcc CFLAGS=-I./include \ CXX=gcc CXXFLAGS=-O3 \ ./configure --prefix=/usr/local/mysql
Note that the following problems with the ld program can be fixed by downloading the latest DEC (Compaq) patch kit from: http://ftp.support.compaq.com/public/unix/.
On OSF/1 V4.0D and compiler "DEC C V5.6-071 on Digital Unix
V4.0 (Rev. 878)," the compiler had some strange behavior
/bin/ld also appears to be broken (problems
_exit undefined errors occurring while
linking mysqld). On this system, we have
managed to compile MySQL with the following
configure line, after replacing
/bin/ld with the version from OSF 4.0C:
CC=gcc CXX=gcc CXXFLAGS=-O3 ./configure --prefix=/usr/local/mysql
With the Digital compiler "C++ V6.1-029," the following should work:
CC=cc -pthread CFLAGS=-O4 -ansi_alias -ansi_args -fast -inline speed \ -speculate all -arch host CXX=cxx -pthread CXXFLAGS=-O4 -ansi_alias -ansi_args -fast -inline speed \ -speculate all -arch host -noexceptions -nortti export CC CFLAGS CXX CXXFLAGS ./configure --prefix=/usr/mysql/mysql \ --with-mysqld-ldflags=-all-static --disable-shared \ --with-named-thread-libs="-lmach -lexc -lc"
In some versions of OSF/1, the
function is broken. Fix this by removing the line in
config.h that defines
alloca() function also may have an
incorrect prototype in
/usr/include/alloca.h. This warning
resulting from this can be ignored.
configure uses the following thread
--with-named-thread-libs="-lpthread -lmach -lexc
When using gcc, you can also try running configure like this:
CFLAGS=-D_PTHREAD_USE_D4 CXX=gcc CXXFLAGS=-O3 ./configure ...
If you have problems with signals (MySQL dies unexpectedly under high load), you may have found an OS bug with threads and signals. In this case, you can tell MySQL not to use signals by configuring with:
CFLAGS=-DDONT_USE_THR_ALARM \ CXXFLAGS=-DDONT_USE_THR_ALARM \ ./configure ...
This does not affect the performance of MySQL, but has the side effect that you cannot kill clients that are “sleeping” on a connection with mysqladmin kill or mysqladmin shutdown. Instead, the client dies when it issues its next command.
With gcc 2.95.2, you may encounter the following compile error:
sql_acl.cc:1456: Internal compiler error in `scan_region', at except.c:2566 Please submit a full bug report.
To fix this, you should change to the
directory and do a cut-and-paste of the last
gcc line, but change
-O0 (or add
immediately after gcc if you do not have
-O option on your compile line). After
this is done, you can just change back to the top-level
directory and run make again.