Start tracking build with git

1 files changed, 36 insertions, 0 deletions

diff --git a/build/c/cpp-options.make b/build/c/cpp-options.make
new file mode 100644
index 0000000..8956d41
--- /dev/null
+++ b/build/c/cpp-options.make
@@ -0,0 +1,36 @@
+# file      : build/c/cpp-options.make
+# author    : Boris Kolpackov <boris@codesynthesis.com>
+# copyright : Copyright (c) 2004-2010 Code Synthesis Tools CC
+# license   : GNU GPL v2; see accompanying LICENSE file
+
+$(out_base)/%.cpp-options: c-cpp-options-expand-impl = $(if $1,cat $1 >>$2)
+$(out_base)/%.cpp-options: c-cpp-options-expand = \
+$(call c-cpp-options-expand-impl,$(filter %.cpp-options,$1),$2)
+
+
+#@@ Asymmetry: I hide creation commands but show removals.
+#
+$(out_base)/%.cpp-options: c-cpp-options-force-impl = \
+$(if $(subst $1,,$2)$(subst $2,,$1),FORCE)
+
+$(out_base)/%.cpp-options: c-cpp-options-force = \
+$(call c-cpp-options-force-impl,$(shell if test -f $1; then exec head -n 1 $1; fi),include: $2)
+
+
+# @@ Need to incroporate prefix: into force-check. Then it will probably
+#    have to be non-optional.
+#
+
+ifeq ($(src_base),$(out_base))
+$(out_base)/%.cpp-options: $$(call c-cpp-options-force,$$@,$$(value))
+else
+$(out_base)/%.cpp-options: $$(call c-cpp-options-force,$$@,$$(value)) | $$(dir $$@).
+endif
+	@echo "include: $(value)" >$@
+	$(if $(strip $(prefix)),@echo "prefix: $(prefix)" >>$@)
+	@$(call c-cpp-options-expand,$^,$@)
+
+# Clean.
+#
+$(out_base)/%.cpp-options.clean:
+	$(call message,rm $(basename $@),rm -f $(basename $@))