CFLAGS += @CFLAGS@ -DPREFIX=\"$(prefix)\"
CPPFLAGS += @CPPFLAGS@
CXXFLAGS += @CXXFLAGS@ -DPREFIX=\"$(prefix)\"
-COMPILE := $(CXX) -fPIC -MMD -MP $(CPPFLAGS) $(CFLAGS) $(CXXFLAGS) \
+COMPILE := $(CXX) -fPIC -MMD -MP $(CPPFLAGS) $(CXXFLAGS) \
$(sprojs_include)
COMPILE_C := $(CC) -fPIC -MMD -MP $(CPPFLAGS) $(CFLAGS) \
$(sprojs_include)
# Build the object files for this subproject
+$(2)_pch := $$(patsubst %.h, %.h.gch, $$($(2)_precompiled_hdrs))
$(2)_objs := $$(patsubst %.cc, %.o, $$($(2)_srcs))
$(2)_c_objs := $$(patsubst %.c, %.o, $$($(2)_c_srcs))
$(2)_deps := $$(patsubst %.o, %.d, $$($(2)_objs))
$(2)_c_deps := $$(patsubst %.o, %.d, $$($(2)_c_objs))
-$$($(2)_objs) : %.o : %.cc $$($(2)_gen_hdrs)
+$(2)_pch_deps := $$(patsubst %.h, %.d, $$($(2)_precompiled_hdrs))
+$$($(2)_pch) : %.h.gch : %.h
+ $(COMPILE) $$<
+# If using clang, don't depend (and thus don't build) precompiled headers
+$$($(2)_objs) : %.o : %.cc $$($(2)_gen_hdrs) $(if $(filter-out clang,$(CC)),$$($(2)_pch))
$(COMPILE) -c $$<
$$($(2)_c_objs) : %.o : %.c $$($(2)_gen_hdrs)
$(COMPILE_C) -c $$<
-$(2)_junk += $$($(2)_objs) $$($(2)_c_objs) $$($(2)_deps) $$($(2)_c_deps) $$($(2)_gen_hdrs)
+$(2)_junk += $$(addprefix $(src_dir)/$(1)/, $$($(2)_pch)) \
+ $$($(2)_objs) $$($(2)_c_objs) $$($(2)_deps) $$($(2)_c_deps) $$($(2)_gen_hdrs) $$($(2)_pch_deps)
# Reverse the dependency list so that a given subproject only depends on
# subprojects listed to its right. This is the correct order for linking