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I am trying to compile llvm on latest cygwin and I get an error about missing definitions for Dl_info and dladdr.
const llvm::sys::Path& CIndexer::getClangPath() { // Did we already compute the path? if (!ClangPath.empty()) return ClangPath;
// Find the location where this library lives (libCIndex.dylib). #ifdef LLVM_ON_WIN32 ... #else // This silly cast below avoids a C++ warning. Dl_info info; if (dladdr((void *)(uintptr_t)clang_createTranslationUnit,&info) == 0) assert(0&& "Call to dladdr() failed");
llvm::sys::Path CIndexPath(info.dli_fname);
// We now have the CIndex directory, locate clang relative to it. CIndexPath.eraseComponent(); CIndexPath.eraseComponent(); CIndexPath.appendComponent("bin"); CIndexPath.appendComponent("clang"); #endif
// Cache our result. ClangPath = CIndexPath; return ClangPath; }
I have a working cygwin llvm and llvm-gcc, but had no time to produce a proper package yet. Attached are my cygport files and my local config. No patches were needed.
But I haven't bothered to build clang yet, just the Clang llvmc plugin and llvm-gcc, which I thought is harder to build and gives us more gcc compatibility.
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(). -- Reini Urban http://phpwiki.org/ http://murbreak.at/
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llvm-2.5-1.cygport
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llvm-gcc4.2-2.5-1.cygport
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vmkit-0.25-1.cygport
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Makefile.config
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