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authorBen Gamari <ben@smart-cactus.org>2023-01-06 15:11:47 -0500
committerBen Gamari <ben@smart-cactus.org>2023-01-09 19:01:02 -0500
commit34dd176116870d24d6a5b93e263e79edad06fd00 (patch)
tree668d50eb66bde4b271fff9b1040747d53c0f3a79 /pkgs/applications/science/math/gmsh/default.nix
parent4ed69ca0957e29c40bcabb6f55c634b590b3a669 (diff)
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gmsh: enable python bindings
Diffstat (limited to 'pkgs/applications/science/math/gmsh/default.nix')
-rw-r--r--pkgs/applications/science/math/gmsh/default.nix18
1 files changed, 16 insertions, 2 deletions
diff --git a/pkgs/applications/science/math/gmsh/default.nix b/pkgs/applications/science/math/gmsh/default.nix
index 3153c128057..4d9b3afe31c 100644
--- a/pkgs/applications/science/math/gmsh/default.nix
+++ b/pkgs/applications/science/math/gmsh/default.nix
@@ -1,7 +1,9 @@
 { lib, stdenv, fetchurl, cmake, blas, lapack, gfortran, gmm, fltk, libjpeg
-, zlib, libGL, libGLU, xorg, opencascade-occt }:
+, zlib, libGL, libGLU, xorg, opencascade-occt
+, python ? null, enablePython ? false }:
 
 assert (!blas.isILP64) && (!lapack.isILP64);
+assert enablePython -> (python != null);
 
 stdenv.mkDerivation rec {
   pname = "gmsh";
@@ -18,10 +20,16 @@ stdenv.mkDerivation rec {
     libGL libGLU xorg.libXrender xorg.libXcursor xorg.libXfixes
     xorg.libXext xorg.libXft xorg.libXinerama xorg.libX11 xorg.libSM
     xorg.libICE
-  ];
+  ] ++ lib.optional enablePython python;
 
   enableParallelBuilding = true;
 
+  patches = [ ./fix-python.patch ];
+
+  postPatch = ''
+    substituteInPlace api/gmsh.py --subst-var-by LIBPATH ${placeholder "out"}/lib/libgmsh.so
+  '';
+
   # N.B. the shared object is used by bindings
   cmakeFlags = [
     "-DENABLE_BUILD_SHARED=ON"
@@ -31,6 +39,12 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake gfortran ];
 
+  postFixup = lib.optionalString enablePython ''
+    mkdir -p $out/lib/python${python.pythonVersion}/site-packages
+    mv $out/lib/gmsh.py $out/lib/python${python.pythonVersion}/site-packages
+    mv $out/lib/*.dist-info $out/lib/python${python.pythonVersion}/site-packages
+  '';
+
   doCheck = true;
 
   meta = {