15.5.2.1 Compiling a foreign extension using a simple Makefile

If the package requires some C code to be compiled that has no dependencies and needs no configuration it is probably easiest to use a simple Unix make file. We assume pack_version(2). Here is a simple Makefile. We assume the pack contains a file c/environ.c that contains the C source. Following the GNU guidelines, the Makefile must define the following targets:

all (default)

Build the foreign extension. In this very simple case we build the resulting module directly in the target directory.

check

Test the package. This is executed after the default build target.

install

Install the package. In this case this does nothing.

clean

Clean the package. This target disposes intermediate build products.

distclean

Restore the package to its fully clean state. This implies that all built products and intermediate build products are removed. The distclean target is used by pack_rebuild/1.

MODULE= $(SWIPL_MODULE_DIR)/environ.$(SOEXT)
CFLAGS= $(SWIPL_CFLAGS)

all:    $(MODULE)

OBJ=c/environ.o

$(MODULE): $(OBJ)
        mkdir -p $(SWIPL_MODULE_DIR)
        $(SWIPL_LD) $(SWIPL_MODULE_LDFLAGS) -o $@ $(OBJ) $(SWIPL_MODULE_LIB)

check::
        $(SWIPL) -g run_tests -t halt test/test_environ.pl
install::
clean:
        rm -f $(OBJ)
distclean: clean
        rm -f $(MODULE)