#9010: TemplateHaskell leads to an "unknown symbol" error -------------------------------------+------------------------------------- Reporter: Feuerbach | Owner: Type: bug | Status: infoneeded 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 basvandijk): The following is from inside `nix-shell -A env` (i.e. inside an environment which has `hs-opencv-binding` installed): {{{ $ ghc-pkg describe hs-opencv-binding name: hs-opencv-binding version: 0.0.0 id: hs-opencv-binding-0.0.0-8f2416af7a2ee3c9cd620cc714b1aad9 key: hsope_LkixZPC131K3fnJ17eOHEn license: BSD3 exposed: True exposed-modules: OpenCV trusted: False import-dirs: /nix/store/9i2cs3qbs78bx8zph68578awirvpk4ja-hs-opencv- binding-0.0.0/lib/ghc-7.10.2/hs-opencv-binding-0.0.0 library-dirs: /nix/store/9i2cs3qbs78bx8zph68578awirvpk4ja-hs-opencv- binding-0.0.0/lib/ghc-7.10.2/hs-opencv-binding-0.0.0 /nix/store/yd25dral2yg4sdn31iq3cbzf1k2lsqlh-opencv-3.0.0/lib data-dir: /nix/store/9i2cs3qbs78bx8zph68578awirvpk4ja-hs-opencv- binding-0.0.0/share/x86_64-linux-ghc-7.10.2/hs-opencv-binding-0.0.0 hs-libraries: HShs-opencv-binding-0.0.0-LkixZPC131K3fnJ17eOHEn extra-libraries: opencv_shape opencv_stitching opencv_objdetect opencv_superres opencv_videostab opencv_calib3d opencv_features2d opencv_highgui opencv_videoio opencv_imgcodecs opencv_video opencv_photo opencv_ml opencv_imgproc opencv_flann opencv_core opencv_hal include-dirs: /nix/store/yd25dral2yg4sdn31iq3cbzf1k2lsqlh- opencv-3.0.0/include /nix/store/yd25dral2yg4sdn31iq3cbzf1k2lsqlh- opencv-3.0.0/include/opencv depends: base-4.8.1.0-4f7206fd964c629946bb89db72c80011 haddock-interfaces: /nix/store/9i2cs3qbs78bx8zph68578awirvpk4ja-hs-opencv- binding-0.0.0/share/doc/x86_64-linux-ghc-7.10.2/hs-opencv- binding-0.0.0/html/hs-opencv-binding.haddock haddock-html: /nix/store/9i2cs3qbs78bx8zph68578awirvpk4ja-hs-opencv- binding-0.0.0/share/doc/x86_64-linux-ghc-7.10.2/hs-opencv- binding-0.0.0/html pkgroot: "/nix/store/ij6kvzi44hmwnvkxsxfimvlixaxwfhf4-ghc-7.10.2/lib/ghc-7.10.2" }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9010#comment:17 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler