This is the text of my bug report, in case anyone would rather copy paste.
This was filed at https://bugreport.apple.com/ under "OSX SDK".
---
Summary:
Under GNU gcc, there's a syntax error in ApplicationServices.h if
$MACOSX_DEPLOYMENT_TARGET has any value less than 10.10.
Steps to Reproduce:
```
$ echo '#include <ApplicationServices/ApplicationServices.h>' |
MACOSX_DEPLOYMENT_TARGET=10.10 gcc -c -xc -
(it works, no output)
$ echo '#include <ApplicationServices/ApplicationServices.h>' |
MACOSX_DEPLOYMENT_TARGET=10.9 gcc -c -xc -
In file included from /usr/include/Availability.h:153:0,
from
/System/Library/Frameworks/ApplicationServices.framework/Headers/ApplicationServices.h:19,
from <stdin>:1:
/System/Library/Frameworks/CoreServices.framework/Frameworks/FSEvents.framework/Headers/FSEvents.h:486:41:
error: expected ',' or '}' before '__attribute__'
kFSEventStreamEventFlagItemIsHardlink __OSX_AVAILABLE_STARTING(__MAC_10_10,
__IPHONE_9_0) = 0x00100000,
^
```
This is related to the fact that clang supports "enumeration attributes" but
GNU gcc does not.
http://clang.llvm.org/docs/LanguageExtensions.html#attributes-on-enumerators
https://gcc.gnu.org/onlinedocs/gcc/Attribute-Syntax.html#Attribute-Syntax
The dev forums suggest that "It looks like the macros in Availability.h need an
"ENUM" variant (like we have for the CF and NS availability macros) to cover
this case."
https://devforums.apple.com/message/1128923#1128923
Expected Results:
successful compilation
Actual Results:
compilation fails with a syntax error
Version:
osx 10.10.3 (14D131)
xcode Version 6.2 (6C131e)
gcc --version: gcc (GCC) 4.9.2
Notes:
Downstream ticket: http://trac.sagemath.org/ticket/18254
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