Using legacy LIBPROTOBUF_EXPORT with old version of protobuf

Support old protobuf for OtlpHttp*Exporter Signed-off-by: owentou <owentou@tencent.com>
open-telemetry · Oct 29, 2021 · f588e6b · f588e6b
1 parent 2bc7329
commit f588e6b
Showing 1 changed file with 14 additions and 1 deletion.
diff --git a/exporters/otlp/src/otlp_http_client.cc b/exporters/otlp/src/otlp_http_client.cc
@@ -11,7 +11,20 @@
 
 #include "google/protobuf/message.h"
 #include "google/protobuf/reflection.h"
-#include "google/protobuf/stubs/strutil.h"
+#include "google/protobuf/stubs/common.h"
+
+#if defined(GOOGLE_PROTOBUF_VERSION) && GOOGLE_PROTOBUF_VERSION >= 3007000
+#  include "google/protobuf/stubs/strutil.h"
+#else
+#  include "google/protobuf/stubs/port.h"
+namespace google
+{
+namespace protobuf
+{
+LIBPROTOBUF_EXPORT int Base64Escape(const unsigned char *src, int slen, char *dest, int szdest);
+}  // namespace protobuf
+}  // namespace google
+#endif
 
 #include "opentelemetry/exporters/otlp/protobuf_include_suffix.h"