#9010: TemplateHaskell leads to an "unknown symbol" error -------------------------------------+------------------------------------- Reporter: Feuerbach | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.10.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by rwbarton): I should probably add that I am building against the Debian package `libopencv-dev=2.4.9.1+dfsg-1.2` and the `hs-opencv-binding` is dynamically linked against a bunch of OpenCV libraries {{{ rwbarton@morphism:/tmp/th-unknown-symbol-test/hs-opencv-binding/dist/dist- sandbox-3f06d746/build$ ldd libHShs-opencv-binding-0.0.0 -3XpfF7vOgxLEUT7DVeoPSc-ghc7.10.1.so | grep libopencv libopencv_calib3d.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_calib3d.so.2.4 (0x00007f6bd2ec1000) libopencv_contrib.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_contrib.so.2.4 (0x00007f6bd2bda000) libopencv_core.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_core.so.2.4 (0x00007f6bd27a8000) libopencv_features2d.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_features2d.so.2.4 (0x00007f6bd2508000) libopencv_flann.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_flann.so.2.4 (0x00007f6bd229c000) libopencv_gpu.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_gpu.so.2.4 (0x00007f6bd203d000) libopencv_highgui.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_highgui.so.2.4 (0x00007f6bd1df0000) libopencv_imgproc.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_imgproc.so.2.4 (0x00007f6bd195d000) libopencv_legacy.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_legacy.so.2.4 (0x00007f6bd1648000) libopencv_ml.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_ml.so.2.4 (0x00007f6bd13cb000) libopencv_objdetect.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_objdetect.so.2.4 (0x00007f6bd1151000) libopencv_ocl.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_ocl.so.2.4 (0x00007f6bd0d82000) libopencv_photo.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_photo.so.2.4 (0x00007f6bd0b64000) libopencv_stitching.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_stitching.so.2.4 (0x00007f6bd08dc000) libopencv_superres.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_superres.so.2.4 (0x00007f6bd06a1000) libopencv_ts.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_ts.so.2.4 (0x00007f6bd03f1000) libopencv_video.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_video.so.2.4 (0x00007f6bd019a000) libopencv_videostab.so.2.4 => /usr/lib/x86_64-linux- gnu/libopencv_videostab.so.2.4 (0x00007f6bcff5b000) }}} It looks like you are using static linking, for some reason? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9010#comment:9 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler