Don't setup signal handler in EE IPC when building for memcheck.
Don't setup signal handler in EE IPC when building for memcheck.

Hudson needs libjsig.so to run memcheck without printing out all those signal
handler warnings. However, libjsig.so interposes sigaction() and it doesn't
release memory after call to dlerror() internally. This causes sigaction() call
in EE IPC to leak memory, too. So don't call sigaction() in EE IPC when building
for memcheck.

zuowang/voltdb,paulmartel/voltdb,paulmartel/voltdb,creative-quant/voltdb,kobronson/cs-voltdb,simonzhangsm/voltdb,ingted/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb,ingted/voltdb,paulmartel/voltdb,deerwalk/voltdb,migue/voltdb,ingted/voltdb,deerwalk/voltdb,kumarrus/voltdb,kumarrus/voltdb,kobronson/cs-voltdb,flybird119/voltdb,simonzhangsm/voltdb,kumarrus/voltdb,wolffcm/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,creative-quant/voltdb,ingted/voltdb,creative-quant/voltdb,deerwalk/voltdb,paulmartel/voltdb,creative-quant/voltdb,migue/voltdb,flybird119/voltdb,flybird119/voltdb,paulmartel/voltdb,kobronson/cs-voltdb,wolffcm/voltdb,wolffcm/voltdb,deerwalk/voltdb,wolffcm/voltdb,VoltDB/voltdb,migue/voltdb,paulmartel/voltdb,kobronson/cs-voltdb,deerwalk/voltdb,wolffcm/voltdb,flybird119/voltdb,wolffcm/voltdb,ingted/voltdb,migue/voltdb,VoltDB/voltdb,ingted/voltdb,kumarrus/voltdb,kumarrus/voltdb,VoltDB/voltdb,migue/voltdb,kumarrus/voltdb,zuowang/voltdb,wolffcm/voltdb,zuowang/voltdb,simonzhangsm/voltdb,migue/voltdb,wolffcm/voltdb,creative-quant/voltdb,migue/voltdb,creative-quant/voltdb,kumarrus/voltdb,deerwalk/voltdb,paulmartel/voltdb,zuowang/voltdb,kobronson/cs-voltdb,zuowang/voltdb,kobronson/cs-voltdb,ingted/voltdb,kumarrus/voltdb,creative-quant/voltdb,paulmartel/voltdb,simonzhangsm/voltdb,flybird119/voltdb,migue/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,creative-quant/voltdb,zuowang/voltdb,flybird119/voltdb,zuowang/voltdb,flybird119/voltdb,VoltDB/voltdb,kobronson/cs-voltdb,VoltDB/voltdb,kobronson/cs-voltdb,VoltDB/voltdb,flybird119/voltdb,ingted/voltdb,deerwalk/voltdb,zuowang/voltdb