Difference between revisions of "Using C libraries for a D program"
(note binding file is not provided here as precompiled) |
(make shared explicit; use vars to make more general) |
||
| Line 6: | Line 6: | ||
::'''./main.d''' | ::'''./main.d''' | ||
| − | * a C ABI library file: | + | * a C ABI shared library file: |
::'''/usr/local/lib/libbu.so''' | ::'''/usr/local/lib/libbu.so''' | ||
| Line 23: | Line 23: | ||
BINDING = $(MODDIR)/bu.d | BINDING = $(MODDIR)/bu.d | ||
| − | + | PROG = $(PROG) | |
| − | + | all: $(PROG) | |
| + | |||
| + | $(PROG): main.o bu.o | ||
$(DMD) -o $@ main.o bu.o -L$(LIBDIR) -lbu | $(DMD) -o $@ main.o bu.o -L$(LIBDIR) -lbu | ||
| Line 35: | Line 37: | ||
clean: | clean: | ||
| − | -rm *.o</pre> | + | -rm $(PROG) *.o</pre> |
Then we can build '''test-bu''' by executing: | Then we can build '''test-bu''' by executing: | ||
Revision as of 18:41, 15 May 2014
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:
- ./main.d
- a C ABI shared library file:
- /usr/local/lib/libbu.so
- a D language binding source file to the C library API headers:
- /usr/local/include/bu.d
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 = $(PROG)
all: $(PROG)
$(PROG): main.o bu.o
$(DMD) -o $@ main.o bu.o -L$(LIBDIR) -lbu
%.o: %.d
$(DMD) -c $< -o $@
bu.o: $(BINDING)
$(DMD) -c $< -o $@
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 source available as a pre-compiled *.o file.
