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libiio: disable Python for static builds

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libiio's Python bindings use ctypes to load the shared library, which
obviously can't work with a static build. This has recently started
causing eval errors because the package uses
stdenv.hostPlatform.extensions.sharedLibrary, which isn't available when
building a static library.

This patch adds a flag to disable the Python bindings, and automatically
disables them for static builds.

Note that even with this patch, static libiio doesn't build successfully
by default. You have to disable avahi and manually disable libxml2 with
custom CMake flags.
This commit is contained in:
Ben Wolsieffer 2023-08-10 15:38:47 -04:00
parent f0451844bb
commit d16b0690f8
2 changed files with 16 additions and 10 deletions
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21
pkgs/development/libraries/libiio/default.nix
View File

@ -4,7 +4,7 @@
, flex
, bison
, libxml2
, python
, pythonSupport ? stdenv.hostPlatform.hasSharedLibraries, python
, libusb1
, avahiSupport ? true, avahi
, libaio
@ -19,7 +19,8 @@ stdenv.mkDerivation rec {
pname = "libiio";
version = "0.24";
outputs = [ "out" "lib" "dev" "python" ];
outputs = [ "out" "lib" "dev" ]
++ lib.optional pythonSupport "python";
src = fetchFromGitHub {
owner = "analogdevicesinc";
@ -37,8 +38,9 @@ stdenv.mkDerivation rec {
flex
bison
pkg-config
] ++ lib.optionals pythonSupport ([
python
] ++ lib.optional python.isPy3k python.pkgs.setuptools;
] ++ lib.optional python.isPy3k python.pkgs.setuptools);
buildInputs = [
libxml2
@ -49,25 +51,26 @@ stdenv.mkDerivation rec {
cmakeFlags = [
"-DUDEV_RULES_INSTALL_DIR=${placeholder "out"}/lib/udev/rules.d"
"-DPython_EXECUTABLE=${python.pythonForBuild.interpreter}"
"-DPYTHON_BINDINGS=on"
# osx framework is disabled,
# the linux-like directory structure is used for proper output splitting
"-DOSX_PACKAGE=off"
"-DOSX_FRAMEWORK=off"
] ++ lib.optionals pythonSupport [
"-DPython_EXECUTABLE=${python.pythonForBuild.interpreter}"
"-DPYTHON_BINDINGS=on"
] ++ lib.optionals (!avahiSupport) [
"-DHAVE_DNS_SD=OFF"
];
postPatch = ''
# Hardcode path to the shared library into the bindings.
sed "s#@libiio@#$lib/lib/libiio${stdenv.hostPlatform.extensions.sharedLibrary}#g" ${./hardcode-library-path.patch} | patch -p1
substituteInPlace libiio.rules.cmakein \
--replace /bin/sh ${runtimeShell}
'' + lib.optionalString pythonSupport ''
# Hardcode path to the shared library into the bindings.
sed "s#@libiio@#$lib/lib/libiio${stdenv.hostPlatform.extensions.sharedLibrary}#g" ${./hardcode-library-path.patch} | patch -p1
'';
postInstall = ''
postInstall = lib.optionalString pythonSupport ''
# Move Python bindings into a separate output.
moveToOutput ${python.sitePackages} "$python"
'';

5
pkgs/top-level/python-packages.nix
View File

@ -5882,7 +5882,10 @@ self: super: with self; {
inherit (pkgs.config) cudaSupport;
};
libiio = (toPythonModule (pkgs.libiio.override { inherit python; })).python;
libiio = (toPythonModule (pkgs.libiio.override {
pythonSupport = true;
inherit python;
})).python;
libkeepass = callPackage ../development/python-modules/libkeepass { };