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...roblem: https://cygwin.com/ml/cygwin/2010-01/msg00596.html "cygwin has only dlsym() not the SGI DL_info + dladdr() yet. clang just needs it to get the path for the CIndex dll. This should be possible with the code in the LLVM_ON_WIN32 section, and convert then the path from win to posix with cygwin_conv_path()." On Thu, Jun 30, 2016 at 11:16 AM, Martin J. O'Riordan via llvm-dev < llvm-dev at lists.llvm.org> wrote: > I am updating our out-of-tree copy of LLVM to track the head (revision > #272991 specifically). > > > > I have it building successfully with VC++ 2013 a...

...,17 @@ updatepwd(const char *dir) char *cdcomppath; const char *lim; +#ifdef __CYGWIN__ + /* On cygwin, thanks to drive letters, some absolute paths do + not begin with slash; but cygwin includes a function that + forces normalization to the posix form */ + char pathbuf[PATH_MAX]; + if (cygwin_conv_path(CCP_WIN_A_TO_POSIX | CCP_RELATIVE, dir, pathbuf, + sizeof(pathbuf)) < 0) + sh_error("can't normalize %s", dir); + dir = pathbuf; +#endif + cdcomppath = sstrdup(dir); STARTSTACKSTR(new); if (*dir != '/') {

...,17 @@ updatepwd(const char *dir) char *cdcomppath; const char *lim; +#ifdef __CYGWIN__ + /* On cygwin, thanks to drive letters, some absolute paths do + not begin with slash; but cygwin includes a function that + forces normalization to the posix form */ + char pathbuf[PATH_MAX]; + if (cygwin_conv_path(CCP_WIN_A_TO_POSIX | CCP_RELATIVE, dir, pathbuf, + sizeof(pathbuf)) < 0) + sh_error("can't normalize %s", dir); + dir = pathbuf; +#endif + cdcomppath = sstrdup(dir); STARTSTACKSTR(new); if (*dir != '/') {

I am updating our out-of-tree copy of LLVM to track the head (revision #272991 specifically). I have it building successfully with VC++ 2013 and CMake v3.5.2 on Windows, and with GCC v4.8.5 and CMake v3.5.2 on CentOS; but when I try building on Windows using Cygwin32 I get the following build failures: [ 4%] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Signals.cpp.o In file