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Makefile.tests: Add LIBDL make(1) variable for portability sake

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Some platforms (many, if not all, of the *BSD projects) do not provide a libdl,
and instead provide the same functionality in libc. Instead of forcing these
platforms to patch out the link against libdl, add a LIBDL make(1) variable to
allow the -ldl argument to be excluded easily via make(1) arguments.

Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
kevans@FreeBSD.org 2018-01-03 22:30:13 -06:00 • committed by David Gibson
parent 333d533a8f
commit 51b3a16338
1 changed files with 4 additions and 1 deletions
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5
tests/Makefile.tests
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@ -54,9 +54,12 @@ tests: $(TESTS) $(TESTS_TREES)
$(LIB_TESTS): %: $(TESTS_PREFIX)testutils.o util.o $(LIBFDT_archive) $(LIB_TESTS): %: $(TESTS_PREFIX)testutils.o util.o $(LIBFDT_archive)
# Not necessary on all platforms; allow -ldl to be excluded instead of forcing
# other platforms to patch it out.
LIBDL = -ldl
$(DL_LIB_TESTS): %: %.o $(TESTS_PREFIX)testutils.o util.o $(LIBFDT_archive) $(DL_LIB_TESTS): %: %.o $(TESTS_PREFIX)testutils.o util.o $(LIBFDT_archive)
@$(VECHO) LD [libdl] $@ @$(VECHO) LD [libdl] $@
$(LINK.c) -o $@ $^ -ldl $(LINK.c) -o $@ $^ $(LIBDL)
$(LIBTREE_TESTS): %: $(TESTS_PREFIX)testutils.o $(TESTS_PREFIX)trees.o \ $(LIBTREE_TESTS): %: $(TESTS_PREFIX)testutils.o $(TESTS_PREFIX)trees.o \
util.o $(LIBFDT_archive) util.o $(LIBFDT_archive)