libcpp

consult GCC documentation for the GNU C Preprocessor https://gcc.gnu.org/onlinedocs/cppinternals/

!!! WARNING !!!

it is NOT recommended to use this to pre-process C, C++, or OBJ-C code

such code can depend on internal macro's defined by the compiler

such as __cplusplus and __GNUC__ and others the compiler may pre-define

compiling

linux

make -f makefile.linux clean ; make -f makefile.linux

libcpp.a is generated in GCC_OBJECTS_DIRECTORY/libcpp/libcpp.a

windows

building is recommended from cygwin

needed packages from cygwin installer: gcc, g++, make, bison, automake

make -f makefile.windows clean ; make -f makefile.windows

libcpp.a is generated in GCC_OBJECTS_DIRECTORY/libcpp/libcpp.a