[boost] [predef][check] linux clang triggers BOOST_MAC_OS

Subject: [boost] [predef][check] linux clang triggers BOOST_MAC_OS
From: Jürgen Hunold (jhunold_at_[hidden])
Date: 2015-01-31 11:13:07

Hi!

I'm using clang + libc++ on Linux and the Predef "check" magic activates 
"BOOST_MAC_OS". That means I get:

Performing configuration checks

    - symlinks supported       : yes
warn: Unable to construct ./info_as_objcpp
warn: Unable to construct ./info_as_objc
    - BOOST_OS_MACOS           : yes

when running the predef test suite.

Command chain:

cd libs/predef/test

rm -rf ../../../bin.v2/libs/predef/ ../../../bin.v2/check/ 
../../../bin.v2/project-cache.jam 

b2 -a --verbose-test 2>&1 -d+2 --debug-configuration | tee verbose.log 

verbose.log is attached as zip file.

And in fact the macos test are run:

clang-linux.compile.c.without-pth 
BOOST_ROOT/src/devel/boost/bin.v2/libs/predef/test/macos_endian.test/clang-
linux-3.7.0/debug/macos_endian.o

which is only supposed to be run on macos. The test even passes because it 
internally checks for "__APPLE__" being defined, which should probably be 
removed, as the check should be done by the build system.

Compiler:
clang++ -v
clang version 3.7.0 (trunk 227683)
Target: x86_64-unknown-linux-gnu
Thread model: posix

That is current clang trunk.

Though I'm already running with  -d+2 --debug-configuration I get no output 
from the configuration test itself. Any ideas on how to debug this further?

Yours,

Jürgen
-- 
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