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authorChris Hodapp <hodapp87@gmail.com>2017-07-26 21:03:51 -0400
committerChris Hodapp <hodapp87@gmail.com>2017-07-26 21:03:51 -0400
commit70bbd5e84a01dcb25b277b518592f220fa922789 (patch)
tree6dfe0be50e41001aca678a9d91cee6e4e0548bc4
parentd4ef5ac0e962bd6604dda38617c4b98c77a62949 (diff)
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opencv: Work around build failure with enableContrib & Python
-rw-r--r--pkgs/development/libraries/opencv/3.x.nix7
1 files changed, 6 insertions, 1 deletions
diff --git a/pkgs/development/libraries/opencv/3.x.nix b/pkgs/development/libraries/opencv/3.x.nix
index 85b4d5627201..0443d00a258d 100644
--- a/pkgs/development/libraries/opencv/3.x.nix
+++ b/pkgs/development/libraries/opencv/3.x.nix
@@ -90,9 +90,14 @@ stdenv.mkDerivation rec {
       done
     '');
 
-  # This prevents cmake from using libraries in impure paths (which causes build failure on non NixOS)
+  # This prevents cmake from using libraries in impure paths (which
+  # causes build failure on non NixOS)
+  # Also, work around https://github.com/NixOS/nixpkgs/issues/26304 with
+  # what appears to be some stray headers in dnn/misc/tensorflow
+  # in contrib when generating the Python bindings:
   postPatch = ''
     sed -i '/Add these standard paths to the search paths for FIND_LIBRARY/,/^\s*$/{d}' CMakeLists.txt
+    sed -i -e 's|if len(decls) == 0:|if len(decls) == 0 or "opencv2/" not in hdr:|' ./modules/python/src2/gen2.py
   '';
 
   preConfigure =