Enforcing the C++98 standard

[lmagoncalo]

g++ -I. -I/home/lmagoncalo/Desktop/yices-1.0.40/include -Wall -O2 -c -o base/basic_types.o base/basic_types.cc base/basic_types.cc:96:1: error: narrowing conversion of ‘18446744073709551615’ from ‘long unsigned int’ to ‘crest::value_t {aka long long int}’ inside { } [-Wnarrowing] }; ^ base/basic_types.cc:96:1: error: narrowing conversion of ‘18446744073709551615’ from ‘long long unsigned int’ to ‘crest::value_t {aka long long int}’ inside { } [-Wnarrowing] : recipe for target 'base/basic_types.o' failed make: *** [base/basic_types.o] Error 1

For the successful compilation of the source code it is needed to enforce the C++98 standard in gcc. This can be mabe by adding the -std=c++98 flag to the make file.