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-rw-r--r--build-0.3/c/cpp-options.make36
1 files changed, 36 insertions, 0 deletions
diff --git a/build-0.3/c/cpp-options.make b/build-0.3/c/cpp-options.make
new file mode 100644
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--- /dev/null
+++ b/build-0.3/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 $@))