Status: New
Labels: Type-Defect Priority-Medium

New issue 507 by /usr/include/google/protobuf/stubs/platform_macros.h should check for __powerpc__

What steps will reproduce the problem?

1. Compile a generated file using GCC targeting the PowerPC ISA. In my case, I am using a GCC 4.7 cross-compiler built using crosstool-ng.

2. Observe compiler error from /usr/include/google/protobuf/stubs/platform_macros.h line 61:
"Host architecture was not detected as supported by protobuf"

3. The following command line shows several predefined macros, but not __ppc__:
$ ./powerpc-unknown-linux-gnu-g++ -dM -E - < /dev/null
#define __powerpc 1
#define __powerpc__ 1
#define powerpc 1
#define __PPC 1
#define __PPC__ 1
#define PPC 1

What is the expected output? What do you see instead?

The correct behavior is for platform_macros.h to detect the PowerPC platform on line 57. The following works for me:

#elif defined(__ppc__) || defined(__powerpc__)

What version of the product are you using? On what operating system?

* Google protobuf 2.5.0.
* $ uname -a
Linux radix-mint14 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

Please provide any additional information below.


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