gcc -fPIC -DPIC -shared -I../include -I../lib/pcre   -Wall -O2 -g -Wno-pointer-sign core/m_die.c -o core/m_die.so
In file included from core/m_die.c:28:
../include/client.h:188: error: ‘SHA_DIGEST_LENGTH’ undeclared here (not in a function)
make[1]: *** [core/m_die.so] Error 1