Using C libraries for a D program
WARNING: This crude recipe by an absolute D newbie has not yet been tested--corrections are welcome!
Assume one has the following, error-free files:
- a D language source program:
- a C ABI shared library file:
- a D language binding interface file to the C library API headers:
We first create a GNU Makefile to build program test-bu using those three files (note the leading spaces on lines following targets must be tabs in a real GNU Makefile):
$ cat Makefile # use the dmd compiler DMD = /usr/bin/dmd LIBDIR = /usr/local/brlcad/lib MODDIR = /usr/local/brlcad/include BINDING = $(MODDIR)/bu.d PROG = test-bu all: $(PROG) $(PROG): main.o bu.o $(DMD) -of$@ main.o bu.o -L$(LIBDIR) -lbu %.o: %.d $(DMD) -c $< -of$@ bu.o: $(BINDING) $(DMD) -c $< -of$@ clean: rm $(PROG) *.o
Then we can build test-bu by executing:
$ make test-bu
The GNU Makefile can be made more general and efficient, but it should produce the desired binary program.
Note also that a fully D-supporting C library installation would probably have the D binding interface available as a pre-compiled *.o file.