diff --git a/boehm_gc/Makefile.direct b/boehm_gc/Makefile.direct
index 373bf84..97a43a7 100644
--- a/boehm_gc/Makefile.direct
+++ b/boehm_gc/Makefile.direct
@@ -359,11 +359,11 @@ lib$(GC_GRADE).so: $(OBJS) $(UTILS) # dyn_load_sunos53.o
 	./if_mach SPARC SOLARIS $(MAKE) dyn_load_sunos53.o
 	./if_mach SPARC SOLARIS \
 	$(LINK_SHARED_OBJ) -o lib$(GC_GRADE).so $(OBJS) dyn_load_sunos53.o \
-		-ldl $(MAYBE_THREAD_LIBS)
+		-ldl $(MAYBE_THREAD_LIBS) $(LD_LIBFLAGS) $(EXTRA_LD_LIBFLAGS)
 	./if_not_there on_sparc_sunos5_so $(MAKE) dyn_load.o
 	./if_not_there on_sparc_sunos5_so \
 	$(LINK_SHARED_OBJ) -o lib$(GC_GRADE).so $(OBJS) dyn_load.o \
-		-lc $(MAYBE_THREAD_LIBS)
+		-lc $(MAYBE_THREAD_LIBS) $(LD_LIBFLAGS) $(EXTRA_LD_LIBFLAGS)
 
 # Darwin shared library version of the gc.
 lib$(GC_GRADE).dylib: $(OBJS) $(UTILS)
diff --git a/runtime/Mmakefile b/runtime/Mmakefile
index f6908cf..6d9c672 100644
--- a/runtime/Mmakefile
+++ b/runtime/Mmakefile
@@ -248,7 +248,7 @@ MGNUCFLAGS	+= --c-debug --no-ansi
 OBJS		= $(CFILES:.c=.$O)
 PIC_OBJS	= $(CFILES:.c=.$(EXT_FOR_PIC_OBJECTS))
 
-LDFLAGS		= -L$(BOEHM_GC_DIR) -L/usr/local/lib
+LD_LIBFLAGS	= -L$(BOEHM_GC_DIR) -L/usr/local/lib
 LDLIBS		= $(SHARED_GC_LIBS) $(MATH_LIB)
 
 THREADLIBS	= \
@@ -392,7 +392,7 @@ lib$(RT_LIB_NAME).so: $(PIC_OBJS)
 	$(LINK_SHARED_OBJ) $(ERROR_UNDEFINED)				\
 		-o lib$(RT_LIB_NAME).so $(PIC_OBJS)			\
 		$(SHLIB_RPATH_OPT)$(FINAL_INSTALL_MERC_GC_LIB_DIR)	\
-		$(LDFLAGS) $(LDLIBS) $(THREADLIBS)			\
+		$(ALL_LD_LIBFLAGS) $(LDLIBS) $(THREADLIBS)			\
 		$(SHARED_LIBS)
 
 # For Darwin we should pass the -install_name option.
@@ -401,7 +401,7 @@ lib$(RT_LIB_NAME).dylib: $(PIC_OBJS)
 		-o lib$(RT_LIB_NAME).dylib $(PIC_OBJS)			\
 		-install_name 						\
 			$(FINAL_INSTALL_MERC_LIB_DIR)/lib$(RT_LIB_NAME).dylib \
-		$(LDFLAGS) $(LDLIBS) $(THREADLIBS)			\
+		$(ALL_LD_LIBFLAGS) $(LDLIBS) $(THREADLIBS)			\
 		$(SHARED_LIBS)
 
 endif
diff --git a/trace/Mmakefile b/trace/Mmakefile
index 3138bba..79e00c4 100644
--- a/trace/Mmakefile
+++ b/trace/Mmakefile
@@ -273,14 +273,16 @@ lib$(TRACE_LIB_NAME).so: $(TRACE_PIC_OBJS) lib$(EVENTSPEC_LIB_NAME).so
 	$(LINK_SHARED_OBJ) $(ERROR_UNDEFINED)				\
 		-o lib$(TRACE_LIB_NAME).so $(TRACE_PIC_OBJS)		\
 		$(RPATH_1)$(RPATH_2)					\
-		$(TRACE_LDFLAGS) $(TRACE_LDLIBS) $(THREADLIBS)		\
+		$(ALL_LD_LIBFLAGS) $(TRACE_LDFLAGS)			\
+		$(TRACE_LDLIBS) $(THREADLIBS)				\
 		$(SHARED_LIBS)
 
 lib$(EVENTSPEC_LIB_NAME).so: $(EVENTSPEC_PIC_OBJS)
 	$(LINK_SHARED_OBJ) $(ERROR_UNDEFINED)				\
 		-o lib$(EVENTSPEC_LIB_NAME).so $(EVENTSPEC_PIC_OBJS)	\
 		$(RPATH_1)$(RPATH_2)					\
-		$(EVENTSPEC_LDFLAGS) $(EVENTSPEC_LDLIBS) $(THREADLIBS)	\
+		$(ALL_LD_LIBFLAGS) $(EVENTSPEC_LDFLAGS)			\
+		$(EVENTSPEC_LDLIBS) $(THREADLIBS)			\
 		$(SHARED_LIBS)
 
 # For Darwin:
@@ -289,7 +291,8 @@ lib$(TRACE_LIB_NAME).dylib: $(TRACE_PIC_OBJS) lib$(EVENTSPEC_LIB_NAME).dylib
 		-o lib$(TRACE_LIB_NAME).dylib $(TRACE_PIC_OBJS)		\
 		-install_name 						\
 		$(FINAL_INSTALL_MERC_LIB_DIR)/lib$(TRACE_LIB_NAME).dylib \
-		$(TRACE_LDFLAGS) $(TRACE_LDLIBS) $(THREADLIBS)		\
+		$(ALL_LD_LIBFLAGS) $(TRACE_LDFLAGS)			\
+		$(TRACE_LDLIBS) $(THREADLIBS)				\
 		$(SHARED_LIBS)
 
 lib$(EVENTSPEC_LIB_NAME).dylib: $(EVENTSPEC_PIC_OBJS)
@@ -297,7 +300,8 @@ lib$(EVENTSPEC_LIB_NAME).dylib: $(EVENTSPEC_PIC_OBJS)
 		-o lib$(EVENTSPEC_LIB_NAME).dylib $(EVENTSPEC_PIC_OBJS)	\
 		-install_name 						\
 		$(FINAL_INSTALL_MERC_LIB_DIR)/lib$(EVENTSPEC_LIB_NAME).dylib \
-		$(EVENTSPEC_LDFLAGS) $(EVENTSPEC_LDLIBS) $(THREADLIBS)	\
+		$(ALL_LD_LIBFLAGS) $(EVENTSPEC_LDFLAGS)			\
+		$(EVENTSPEC_LDLIBS) $(THREADLIBS)			\
 		$(SHARED_LIBS)
 
 .PHONY: cs
diff --git a/util/Mmakefile b/util/Mmakefile
index c3ff7aa..80ba6d2 100644
--- a/util/Mmakefile
+++ b/util/Mmakefile
@@ -51,30 +51,30 @@ all:	$(PROGFILENAMES) $(TAGS_FILE_EXISTS)
 ifeq ($(USING_MICROSOFT_CL_COMPILER),yes)
 .c$(EXT_FOR_EXE):
 	$(MGNUC) --no-mercury-stdlib-dir \
-		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) -Fe$@ $< $(GETOPT_SRC)
+		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) $(ALL_LDFLAGS) -Fe$@ $< $(GETOPT_SRC)
 
 mkinit$(EXT_FOR_EXE): mkinit.c mkinit_common.c mkinit_common.h
 	$(MGNUC) --no-mercury-stdlib-dir \
-		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) -Fe$@ \
+		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) $(ALL_LDFLAGS) -Fe$@ \
 			mkinit.c mkinit_common.c $(GETOPT_SRC)
 
 mkinit_erl$(EXT_FOR_EXE): mkinit_erl.c mkinit_common.c mkinit_common.h
 	$(MGNUC) --no-mercury-stdlib-dir \
-		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) -Fe$@ \
+		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) $(ALL_LDFLAGS) -Fe$@ \
 			mkinit_erl.c mkinit_common.c $(GETOPT_SRC)
 else
 .c$(EXT_FOR_EXE):
 	$(MGNUC) --no-mercury-stdlib-dir \
-		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) -o $@ $< $(GETOPT_SRC)
+		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) $(ALL_LDFLAGS) -o $@ $< $(GETOPT_SRC)
 
 mkinit$(EXT_FOR_EXE): mkinit.c mkinit_common.c mkinit_common.h
 	$(MGNUC) --no-mercury-stdlib-dir \
-		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) -o $@ \
+		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) $(ALL_LDFLAGS) -o $@ \
 			mkinit.c mkinit_common.c $(GETOPT_SRC)
 
 mkinit_erl$(EXT_FOR_EXE): mkinit_erl.c mkinit_common.c mkinit_common.h
 	$(MGNUC) --no-mercury-stdlib-dir \
-		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) -o $@ \
+		$(GRADEFLAGS) $(ALL_MGNUCFLAGS) $(ALL_LDFLAGS) -o $@ \
 			mkinit_erl.c mkinit_common.c $(GETOPT_SRC)
 
 endif