Configure issue

[davidgish760]

I'm following the usual installation instructions, but it's failing in the configure step. After downloading the ZIP & unpacking it:

./autogen.sh
./configure

And it fails with:

`...
checking google/protobuf/stubs/common.h usability... no
checking google/protobuf/stubs/common.h presence... no
checking for google/protobuf/stubs/common.h... no
configure: error:
ERROR: protobuf headers are required.

You must either install protobuf from google,
or if you have it installed in a custom location
you must add '-Iincludedir' to CXXFLAGS
and '-Llibdir' to LDFLAGS.

If you did not specify a prefix when installing
protobuf, try
'./configure CXXFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib'
In some 64-bit environments, try LDFLAGS=-L/usr/local/lib64.`

Sure enough, there are only three files in google/protobuf/stubs/ and common.h isn't there.

[davidgish760]

Actually, it looks like a lot of headers are missing. From support comments, I've grokked that the resulting compiler is not the same thing produced by the metasyntactic build scripts, but rather an Xcode plugin (protoc-gen-objc). So pointing to them for documentation is woefully inadequate. Anyway, it looks like this project is pretty broken right now. Or is there something I just don't get?

[yammada]

Its actually a protoc compiler plugin. See https://developers.google.com/protocol-buffers/docs/reference/cpp/google.protobuf.compiler.plugin

I've used it successfully like this (with the compiled plugin in the same directory):

protoc example.proto --objc_out=gen --plugin=protoc-gen-objc=protoc-gen-objc

As far as your configure issue, I wonder if maybe something's changed about Google's protobuf structure...

[davidgish760]

@yammada Apparently there WAS something I just didn't get. Many thanks for clearing away the fog.

The build issues remain, however. For example, plugin.h is among the missing headers. This suggests that I should either specify the main project's header directories as input to configure, or merge the protobuf-objc code into it. The latter is problematic since the structures are rearranged quite a bit. How did you build this?

Thanks again.

[AlexanderBykin]

i should notice, later in 2012 year i was trying to compile it too, but no luck and just used this:
https://github.com/mingchen/protobuf-ios

[davidgish760]

@AlexanderShniperson God bless you sir -- that actually builds! You totally saved my bacon!

[AlexanderBykin]

God is part of us ;)