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-rw-r--r--cmake/Version.cmake11
1 files changed, 11 insertions, 0 deletions
diff --git a/cmake/Version.cmake b/cmake/Version.cmake
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index 0000000..8ac4849
--- /dev/null
+++ b/cmake/Version.cmake
@@ -0,0 +1,11 @@
+# Converts a version such as 1.2.255 to 0x0102ff
+function(HexVersion version_hex_var major minor patch)
+ math(EXPR version_dec "${major} * 256 * 256 + ${minor} * 256 + ${patch}")
+ set(version_hex "0x")
+ foreach(i RANGE 5 0 -1)
+ math(EXPR num "(${version_dec} >> (4 * ${i})) & 15")
+ string(SUBSTRING "0123456789abcdef" ${num} 1 num_hex)
+ set(version_hex "${version_hex}${num_hex}")
+ endforeach()
+ set(${version_hex_var} "${version_hex}" PARENT_SCOPE)
+endfunction()