Update SConstruct
Update SConstruct

Changing " -D_POSIX_SOURCE" for " -DMONGO_ENV_STANDARD " to build with MinGW on 32-bit Windows OS
Compiling with scons --m32 --standard-env
mongodb/mongo-c-driver-legacy,HeliumProject/mongo-c,HeliumProject/mongo-c,Elastica/mongo-c-driver-legacy,Elastica/mongo-c-driver-legacy,Elastica/mongo-c-driver-legacy,mongodb/mongo-c-driver-legacy,HeliumProject/mongo-c,mongodb/mongo-c-driver-legacy,Elastica/mongo-c-driver-legacy,mongodb/mongo-c-driver-legacy,HeliumProject/mongo-c