[llvm-dev] error building LLVM opt tool under Cygwin (original) (raw)
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Wed Feb 27 21:31:02 PST 2019
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Hello, I downloaded and built llvm-7.0.1 as per the instructions on the website docs. It seems that I can run many of the tools in build/bin (eg llvm-diff or count etc) with the exception of opt where I get "-bash: ./opt.exe: cannot execute binary file: Exec format error". I tried rebuilding just opt but still no luck. An ideas?
This is frustrating because opt is the tool I am most interested in, and the reason I built llvm at all instead of relying on the binary distribution.
On a somewhat unrelated note, what does make install actually do. I ran "cmake -DMAKE_INSTALL_PREFIX=..../llvm-project/install -P cmake_Install.cmake" and it ran for a long time, but I couldn't tell what it actually did. eg I couldn't see any directory called ..../llvm=project/install"
thanks
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