Difference between revisions of "Using C libraries for a D program"
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| − | '''WARNING: This recipe by an absolute D newbie has not yet been tested--corrections are welcome!''' | + | '''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: | Assume one has the following, error-free files: | ||
| 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''' | ||
| − | * a D language binding file to the C library API headers: | + | * a D language binding interface file to the C library API headers: |
::'''/usr/local/include/bu.d''' | ::'''/usr/local/include/bu.d''' | ||
| Line 21: | Line 21: | ||
MODDIR = /usr/local/brlcad/include | MODDIR = /usr/local/brlcad/include | ||
| − | + | BINDING = $(MODDIR)/bu.d | |
| − | + | PROG = test-bu | |
| − | + | all: $(PROG) | |
| − | $(DMD) - | + | |
| + | $(PROG): main.o bu.o | ||
| + | $(DMD) -of$@ main.o bu.o -L$(LIBDIR) -lbu | ||
%.o: %.d | %.o: %.d | ||
| − | $(DMD) -c $< -o $@ | + | $(DMD) -c $< -of$@ |
| + | |||
| + | bu.o: $(BINDING) | ||
| + | $(DMD) -c $< -of$@ | ||
clean: | clean: | ||
| − | + | rm $(PROG) *.o</pre> | |
Then we can build '''test-bu''' by executing: | Then we can build '''test-bu''' by executing: | ||
<pre>$ make test-bu</pre> | <pre>$ make test-bu</pre> | ||
| + | |||
| + | 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. | ||
| + | |||
| + | [[Category:HowTo]] | ||
Latest revision as of 02:02, 3 December 2019
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 interface 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 = 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.
