[Boost-users] [filesystem] Strange problems on Cygwin with 1.36.0

Subject: [Boost-users] [filesystem] Strange problems on Cygwin with 1.36.0
From: Boris (boriss_at_[hidden])
Date: 2008-09-16 17:41:21

According to  
http://www.boost.org/doc/libs/1_36_0/libs/filesystem/doc/index.htm#Cgywin  
Boost.Filesystem seems to be supported on Cygwin. However with the latest  
version 1.36.0 (which I've built with BOOST_POSIX_API defined) I don't  
seem to get any Boost.Filesystem function to work on Cygwin. I'm currently  
running some test cases and had to modify them for Cygwin like this:

#if defined(__CYGWIN__)
   BOOST_CHECK(a == b);
#else
   BOOST_CHECK(bfs::equivalent(a, b));
#endif

If a and b contain the very same path you would expect both a == b and  
boost::filesystem::equivalent() to return true. However on Cygwin  
boost::filesystem::equivalent() returns false. If I use  
BOOST_CHECK(bfs::equivalent(a, b)) on Cygwin I get this error:

unknown location(0): fatal error in "test_find_param": std::runtime_error:  
boost::filesystem::equivalent: No such file or directory:  
"\home\Boris\boost_1_36_0\libs\process\test\..\..\..\bin.v2\libs\process\test\gcc-3.4.4\debug\link-static\runtime-link-static\helpers.exe",  
"\home\Boris\boost_1_36_0\libs\process\test\..\..\..\bin.v2\libs\process\test\gcc-3.4.4\debug\link-static\runtime-link-static\helpers.exe"

Both strings are exactly the same and contain valid Cygwin paths. Is  
Boost.Filesystem broken on Cygwin?

Boris

PS: I've a similar problem with boost::filesystem::create_directory()  
which can't create a directory for no obvious reason.