vbs-1.4.0 with patch vbs_1.4.12.diff.gz not compiling

[Ricardo Erckert]

Binary package hint: vbs

patch vbs_1.4.0-12.diff did not include all the header files needed on SUSE 11.1 using gcc 4.3.
Assume similar problems can be found in other distributions too.
Had to add the line "#include <string.h>" to patched vbs-1.4.0/src/common/bvector.h.
 "#include <string>" did not work.
Compilation worked but gave some warnings like " warning: deprecated conversion from string constant to ‘char* "

source: vbs-1.4.0
patch vbs_1.4.0-12.diff.gz
compiler gcc 4.3
expected: patched package should compile
what happened:
g++ -DHAVE_CONFIG_H -Isrc -I. -g -O2 -ansi -pedantic -Wall -fPIC -DVBS_DEBUG -c src/swig/vbs_api.cc
In file included from src/common/st_node.h:16,
                 from src/common/sym_tab.h:26,
                from src/swig/vbs_api.cc:21:
src/common/bvector.h: In member function 'bit_vector::sub_bit_vector& bit_vector::sub_bit_vector::operator=(const bit_vector::sub_bit_vector&)':
src/common/bvector.h:339: error: 'memset' was not declared in this scope ....