build: Fix build error if path contains spaces

janccszy@box:~/bluez test$ make
  GEN      lib/bluetooth/bluetooth.h
ln: target ‘lib/bluetooth/bluetooth.h’ is not a directory
make: *** [lib/bluetooth/bluetooth.h] Error 1

diff --git a/Makefile.am b/Makefile.am
index 2bb2eb5..a3924aa 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -328,7 +328,7 @@ $(lib_libbluetooth_la_OBJECTS): $(local_headers)
 
 lib/bluetooth/%.h: lib/%.h
        $(AM_V_at)$(MKDIR_P) lib/bluetooth
-       $(AM_V_GEN)$(LN_S) -f $(abs_top_builddir)/$< $@
+       $(AM_V_GEN)$(LN_S) -f "$(abs_top_builddir)"/$< $@
 
 clean-local:
        $(RM) -r lib/bluetooth