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-rw-r--r--CMakeScripts/CanonicalizeFlagsVar.cmake11
1 files changed, 11 insertions, 0 deletions
diff --git a/CMakeScripts/CanonicalizeFlagsVar.cmake b/CMakeScripts/CanonicalizeFlagsVar.cmake
new file mode 100644
index 000000000..ddc5b7b5d
--- /dev/null
+++ b/CMakeScripts/CanonicalizeFlagsVar.cmake
@@ -0,0 +1,11 @@
+# This file is copyright by Shlomi Fish, 2016.
+#
+# This file is licensed under the MIT/X11 license:
+# https://opensource.org/licenses/mit-license.php
+
+macro (canonicalize_flags_var in_val out_var)
+ string(REPLACE " " ";" _c "${in_val}")
+ list(REMOVE_DUPLICATES _c)
+ list(SORT _c)
+ string(REPLACE ";" " " "${out_var}" "${_c}")
+endmacro()