Create project generator for C language binding

[SanderMertens]

When creating a new C component, the code generator generates interfaces, type definitions, load routines and type-specific object management routines. A user is then still left with creating:

• A makefile
• A file that provides the hyvemain entry procedure

Though small tasks, they are a bit tedious and could easily be automated. For a novice user they also steepen the learning curve. It would be desirable if the generator tool could automate these tasks as well.

Proposed a generator that will generate a makefile, and a new source file called Foo__main.c that will contain the following function:

int hyvemain(int argc, char* argv[]) {
    DB_UNUSED(argc);
    DB_UNUSED(argv);
    return Foo_load();
}

[SanderMertens]

One thing that complicates makefile generation is to allow for future modifications. For example, a component may want to include additional include files or libraries.

An approach similar to allowing regeneration of source files could be employed here. A section could be introduced in the makefile where a user can insert his own code.

For example:

TARGET =    lang

INCLUDE =   include

# $begin
INCLUDE += ../public/c/include
LIBS    = rt dl m
# $end

include $(BUILD)/component.makefile

[SanderMertens]

Closed with 655d90b