[Xen-devel] [PATCH 03/12] Config.mk: add new macro buildmakevars2header

[Olaf Hering <olaf@xxxxxxxxx>]

This macro is similar to buildmakevars2file, it just creates a C header
file instead of shell style syntax. Upcoming changes will use this macro
in libxl and libxc.

Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
---
 Config.mk | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Config.mk b/Config.mk
index eb3937c..d8fe87b 100644
--- a/Config.mk
+++ b/Config.mk
@@ -182,6 +182,18 @@ define buildmakevars2file-closure
        $(call move-if-changed,$(1).tmp,$(1))
 endef
 
+buildmakevars2header = $(eval $(call buildmakevars2header-closure,$(1)))
+define buildmakevars2header-closure
+    .PHONY: genpath
+    $(1): genpath
+    genpath:
+       rm -f $(1).tmp;                                                     \
+       $(foreach var,                                                      \
+                 $(BUILD_MAKE_VARS),                                       \
+                 echo "#define $(var) \"$($(var))\"" >>$(1).tmp;)\
+       $(call move-if-changed,$(1).tmp,$(1))
+endef
+
 ifeq ($(debug_symbols),y)
 CFLAGS += -g
 endif

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