856a440f3f
Original changes in python27/Makefile r1.62-r1.67
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Add an option for Python: x11
Fix dlopen(3) calls in _ctypes.so for X11BASE libraries
A Python code can dynamically load shared libraries and it's wrapped with
a plain dlopen(3) call. The holder of this interface (_ctypes module)
without rpath set to X11BASE cannot detect libs like 'GL'.
Fixing find_library() on POSIX-like (excluding Darwin) systems.
This isn't addressing Python's wrapper for dlopen(3).
This possibily addresses mostly NetBSD as other popular OSes have ldconfig.
Testing commands:
- before applying the patch
>>> from ctypes.util import find_library
>>> find_library("m")
'libm.so.0'
>>> find_library("crypto")
'libcrypto.so.11'
>>> find_library("GL")
>>> find_library("curl")
- after applying the patch
>>> from ctypes.util import find_library
>>> find_library("m")
'libm.so.0'
>>> find_library("crypto")
'libcrypto.so.11'
>>> find_library("GL")
'libGL.so.2'
>>> find_library("curl")
'libcurl.so.4'
This patch doesn't solve the case of custom dirs like $PREFIX/qt5/lib.
However it's solving most common cases of using this call.
A possible solution is to parse the output "pkg_info -La"... however it's
very slow. In other words a cache with libraries might be needed to handle
it efficiently.
28 lines
1.1 KiB
Makefile
28 lines
1.1 KiB
Makefile
# $NetBSD: options.mk,v 1.1 2016/09/18 12:36:41 kamil Exp $
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PKG_OPTIONS_VAR= PKG_OPTIONS.python27
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PKG_SUPPORTED_OPTIONS+= x11
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PKG_SUGGESTED_OPTIONS= x11
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.include "../../mk/bsd.prefs.mk"
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.include "../../mk/bsd.options.mk"
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.if !empty(PKG_OPTIONS:Mx11)
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# Support for native X11 paths as an option
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# This code is no-op for modular X11, however for simplicity don't make it conditional.
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SUBST_CLASSES+= x11findlib
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SUBST_MESSAGE.x11findlib= Fixing find_library() for native X11.
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SUBST_STAGE.x11findlib= pre-configure
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SUBST_FILES.x11findlib= Lib/ctypes/util.py
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SUBST_SED.x11findlib= -e 's!\(-Wl,-t -o\)!${COMPILER_RPATH_FLAG}${X11BASE}/lib -L${X11BASE}/lib \1!'
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# Required to get definition of X11BASE and retain X11 rpath paths for linker
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# We need to pass rpath to _ctypes.so to get functional dlopen(3) for X11 libs
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USE_X11= yes
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SUBST_CLASSES+= cdlopen
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SUBST_MESSAGE.cdlopen= Handle X11BASE paths in dlopen(3) calls of _ctypes.so
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SUBST_STAGE.cdlopen= pre-configure
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SUBST_FILES.cdlopen= setup.py
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SUBST_SED.cdlopen= -e "s!\(libraries=\[\],\)!\1 runtime_library_dirs=\['${X11BASE}/lib'\],!"
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.endif
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