Build on macos

[AhmedAredah]

I am trying to build osgEarth on mac but i keep getting this error.

I have protoc version libprotoc 25.3 which is needed for and installed with gdal. What would be the best solution for such problem? Thank you.

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk/System/Library/Frameworks/OpenGL.framework/Headers/gl3.h:15:2: warning: gl.h and gl3.h are both included.  Compiler will not invoke errors if using removed OpenGL functionality. [-W#warnings]
   15 | #warning gl.h and gl3.h are both included.  Compiler will not invoke errors if using removed OpenGL functionality.
      |  ^
In file included from /Users/ahmedaredah/Documents/dev/osgearth/src/osgEarth/MapboxGLGlyphManager.cpp:28:
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:15:2: error: "This file was generated by a newer version of protoc which is"
   15 | #error "This file was generated by a newer version of protoc which is"
      |  ^
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:16:2: error: "incompatible with your Protocol Buffer headers. Please update"
   16 | #error "incompatible with your Protocol Buffer headers. Please update"
      |  ^
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:17:2: error: "your headers."
   17 | #error "your headers."
      |  ^
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:159:76: error: only virtual member functions can be marked 'final'
  159 |   void CheckTypeAndMergeFrom(const ::google::protobuf::MessageLite& from)  final;
      |                                                                            ^~~~~
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:162:3: error: unknown type name 'PROTOBUF_ATTRIBUTE_REINITIALIZES'
  162 |   PROTOBUF_ATTRIBUTE_REINITIALIZES void Clear() final;
      |   ^
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:163:30: error: only virtual member functions can be marked 'final'
  163 |   bool IsInitialized() const final;
      |                              ^~~~~
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:166:96: error: only virtual member functions can be marked 'final'
  166 |   const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
      |                                                                                                ^~~~~
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:172:70: error: only virtual member functions can be marked 'final'
  172 |   ::google::protobuf::internal::CachedSize* AccessCachedSize() const final;
      |                                                                      ^~~~~
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:187:35: error: only virtual member functions can be marked 'final'
  187 |   std::string GetTypeName() const final;
      |                                   ^~~~~
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:80:7: warning: abstract class is marked 'final' [-Wabstract-final-class]
   80 | class glyph final :
      |       ^
/usr/local/include/google/protobuf/message_lite.h:251:16: note: unimplemented pure virtual method 'Clear' in 'glyph'
  251 |   virtual void Clear() = 0;
      |                ^
/usr/local/include/google/protobuf/message_lite.h:753:28: note: unimplemented pure virtual method 'GetClassData' in 'glyph'
  753 |   virtual const ClassData* GetClassData() const = 0;
      |                            ^
In file included from /Users/ahmedaredah/Documents/dev/osgearth/src/osgEarth/MapboxGLGlyphManager.cpp:28:
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:157:12: error: use of undeclared identifier 'CreateMaybeMessage'
  157 |     return CreateMaybeMessage<glyph>(arena);
      |            ^
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:402:76: error: only virtual member functions can be marked 'final'
  402 |   void CheckTypeAndMergeFrom(const ::google::protobuf::MessageLite& from)  final;
      |                                                                            ^~~~~
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:405:3: error: unknown type name 'PROTOBUF_ATTRIBUTE_REINITIALIZES'
  405 |   PROTOBUF_ATTRIBUTE_REINITIALIZES void Clear() final;
      |   ^
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:406:30: error: only virtual member functions can be marked 'final'
  406 |   bool IsInitialized() const final;
      |                              ^~~~~
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:409:96: error: only virtual member functions can be marked 'final'
  409 |   const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
      |                                                                                                ^~~~~
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:415:70: error: only virtual member functions can be marked 'final'
  415 |   ::google::protobuf::internal::CachedSize* AccessCachedSize() const final;
      |                                                                      ^~~~~
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:430:35: error: only virtual member functions can be marked 'final'
  430 |   std::string GetTypeName() const final;
      |                                   ^~~~~
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:323:7: warning: abstract class is marked 'final' [-Wabstract-final-class]
  323 | class fontstack final :
      |       ^
/usr/local/include/google/protobuf/message_lite.h:251:16: note: unimplemented pure virtual method 'Clear' in 'fontstack'
  251 |   virtual void Clear() = 0;
      |                ^
/usr/local/include/google/protobuf/message_lite.h:753:28: note: unimplemented pure virtual method 'GetClassData' in 'fontstack'
  753 |   virtual const ClassData* GetClassData() const = 0;
      |                            ^
In file included from /Users/ahmedaredah/Documents/dev/osgearth/src/osgEarth/MapboxGLGlyphManager.cpp:28:
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:400:12: error: use of undeclared identifier 'CreateMaybeMessage'
  400 |     return CreateMaybeMessage<fontstack>(arena);
      |            ^
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:606:76: error: only virtual member functions can be marked 'final'
  606 |   void CheckTypeAndMergeFrom(const ::google::protobuf::MessageLite& from)  final;
      |                                                                            ^~~~~
/Users/ahmedaredah/Documents/dev/osgearth/build/src/osgEarth/glyphs.pb.h:609:3: error: unknown type name 'PROTOBUF_ATTRIBUTE_REINITIALIZES'
  609 |   PROTOBUF_ATTRIBUTE_REINITIALIZES void Clear() final;
      |   ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
3 warnings and 20 errors generated.
make[2]: *** [src/osgEarth/CMakeFiles/osgEarth.dir/MapboxGLGlyphManager.cpp.o] Error 1
make[1]: *** [src/osgEarth/CMakeFiles/osgEarth.dir/all] Error 2
make: *** [all] Error 2

[gwaldron]

I don't recall OpenSceneGraph using protobuf. Where/how does it use it?

[AhmedAredah]

I am sorry. My mistake. It is needed for gdal and apache-arrow

[AhmedAredah]

For future reference: I found i had 2 protobuf installed on my system. one is the system installation and the other is the anaconda installation. cmake refers to both of them in the build process. the fix is to use one of them and discard the other. @gwaldron Thanks for your help.