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-rw-r--r--Source/cmCurl.cxx5
1 files changed, 5 insertions, 0 deletions
diff --git a/Source/cmCurl.cxx b/Source/cmCurl.cxx
index ad0c7d3..4f3d890 100644
--- a/Source/cmCurl.cxx
+++ b/Source/cmCurl.cxx
@@ -12,6 +12,11 @@
#include "cmCurl.h"
#include "cmSystemTools.h"
+// curl versions before 7.21.5 did not provide this error code
+#if defined(LIBCURL_VERSION_NUM) && LIBCURL_VERSION_NUM < 0x071505
+# define CURLE_NOT_BUILT_IN 4
+#endif
+
#define check_curl_result(result, errstr) \
if (result != CURLE_OK && result != CURLE_NOT_BUILT_IN) \
{ \