Can not compile 1.0a1, problem with SoftHSM

[mattias@gozo OpenDNSSEC-1.0a1]$ make
Making all in softHSM
make[1]: Entering directory `/home/mattias/opendnssec/build/OpenDNSSEC-1.0a1/softHSM'
make  all-recursive
make[2]: Entering directory `/home/mattias/opendnssec/build/OpenDNSSEC-1.0a1/softHSM'
Making all in src
make[3]: Entering directory `/home/mattias/opendnssec/build/OpenDNSSEC-1.0a1/softHSM/src'
Making all in lib
make[4]: Entering directory `/home/mattias/opendnssec/build/OpenDNSSEC-1.0a1/softHSM/src/lib'
/bin/sh ../../libtool --tag=CXX   --mode=compile g++ -DHAVE_CONFIG_H -I. -I../..  -I./cryptoki -I/usr/include -I/usr/include -Wno-long-long  -g -O2 -MT SoftDatabase.lo -MD -MP -MF .deps/SoftDatabase.Tpo -c -o SoftDatabase.lo SoftDatabase.cpp
libtool: compile:  g++ -DHAVE_CONFIG_H -I. -I../.. -I./cryptoki -I/usr/include -I/usr/include -Wno-long-long -g -O2 -MT SoftDatabase.lo -MD -MP -MF .deps/SoftDatabase.Tpo -c SoftDatabase.cpp  -fPIC -DPIC -o .libs/SoftDatabase.o
SoftDatabase.cpp: In member function âchar* SoftDatabase::getTokenLabel()â:
SoftDatabase.cpp:192: error: âsprintfâ was not declared in this scope
make[4]: *** [SoftDatabase.lo] Error 1
make[4]: Leaving directory `/home/mattias/opendnssec/build/OpenDNSSEC-1.0a1/softHSM/src/lib'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/home/mattias/opendnssec/build/OpenDNSSEC-1.0a1/softHSM/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/mattias/opendnssec/build/OpenDNSSEC-1.0a1/softHSM'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/mattias/opendnssec/build/OpenDNSSEC-1.0a1/softHSM'
make: *** [all-recursive] Error 1