dev-libs/boost/files/boost-1.70.0-fix-python-cmake-duplicate-target.patch


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Boost.Build errors out when passing multiple python impls to b2:

    error: Name clash for '<p/var/tmp/portage/dev-libs/boost-1.70.0/image/usr/lib64/cmake/boost_python-1.70.0>libboost_python-variant-shared.cmake'
    error:
    error: Tried to build the target twice, with property sets having
    error: these incompatible properties:
    error:
    error:     -  <python>2.7
    error:     -  <python>3.6
    error:
    error: Please make sure to have consistent requirements for these
    error: properties everywhere in your project, especially for install
    error: targets.

https://github.com/boostorg/python/issues/262

--- a/tools/boost_install/boost-install.jam
+++ b/tools/boost_install/boost-install.jam
@@ -870,12 +870,12 @@
 
     $(p).mark-target-as-explicit install-libraries ;
 
-    install-cmake-config $(libraries) ;
+    # install-cmake-config $(libraries) ;
 
     generate install-dependencies : $(libraries) : <generating-rule>@boost-install%generate-dependencies <name>install ;
     $(p).mark-target-as-explicit install-dependencies ;
 
-    alias install : install-libraries install-cmake-config install-dependencies ;
+    alias install : install-libraries install-dependencies ;
     $(p).mark-target-as-explicit install ;
 
     # Target stage