Index: configure.ac
==================================================================
--- configure.ac
+++ configure.ac
@@ -200,10 +200,16 @@
 	enable_threads="no"	# TODO
 	enable_sockets="no"	# TODO
 
 	AC_DEFINE(OF_WII_U, 1, [Whether we are compiling for Wii U])
 	AC_SUBST(MAP_LDFLAGS, ['-Wl,-Map,$@.map'])
+	# Repetition of libraries is required for Wii U, as otherwise it cannot
+	# find main. Just moving -lobjfwtest later doesn't work either, as then
+	# the linker cannot find ObjFW symbols. So the only solution is to list
+	# everything twice, but hide it behind a variable because listing it
+	# twice causes a warning on macOS.
+	AC_SUBST(WII_U_TESTS_LIBS, '-lobjfwtest ${TESTS_LIBS} ${LIBS}')
 ])
 
 AC_ARG_WITH(nds,
 	AS_HELP_STRING([--with-nds], [build for Nintendo DS]))
 AS_IF([test x"$with_nds" = x"yes"], [

Index: extra.mk.in
==================================================================
--- extra.mk.in
+++ extra.mk.in
@@ -92,6 +92,7 @@
 USE_SRCS_SUBPROCESSES = @USE_SRCS_SUBPROCESSES@
 USE_SRCS_TAGGED_POINTERS = @USE_SRCS_TAGGED_POINTERS@
 USE_SRCS_THREADS = @USE_SRCS_THREADS@
 USE_SRCS_UNIX_SOCKETS = @USE_SRCS_UNIX_SOCKETS@
 USE_SRCS_WINDOWS = @USE_SRCS_WINDOWS@
+WII_U_TESTS_LIBS = @WII_U_TESTS_LIBS@
 WRAPPER = @WRAPPER@

Index: tests/Makefile
==================================================================
--- tests/Makefile
+++ tests/Makefile
@@ -231,17 +231,17 @@
 	    -I../src/test			\
 	    -I..				\
 	    -DOBJFWTEST_LOCAL_INCLUDES		\
 	    -DPROG_SUFFIX=\"${PROG_SUFFIX}\"
 OBJCFLAGS_RuntimeARCTests.m = -fobjc-arc -fobjc-arc-exceptions
-# Repetition is required for Wii U, as otherwise it cannot find main. Just
-# moving -lobjfwtest later doesn't work either, as then the linker cannot find
-# ObjFW symbols. So the only solution is to list everything twice.
-LIBS := -L../src/test	\
-	-lobjfwtest	\
-	${TESTS_LIBS}	\
-	${LIBS}		\
-	-lobjfwtest	\
-	${TESTS_LIBS}	\
-	${LIBS}
+# Repetition of libraries is required for Wii U, as otherwise it cannot find
+# main. Just moving -lobjfwtest later doesn't work either, as then the linker
+# cannot find ObjFW symbols. So the only solution is to list everything twice,
+# but hide it behind a variable because listing it twice causes a warning on
+# macOS.
+LIBS := -L../src/test		\
+	-lobjfwtest		\
+	${TESTS_LIBS}		\
+	${LIBS}			\
+	${WII_U_TESTS_LIBS}
 LDFLAGS += ${MAP_LDFLAGS}
 LD = ${OBJC}