New submission from Ned Deily:
While investigating another freeze-related issue, I found that Tools/freeze
seems to not work when used with an installed shared unix build. The symptom
is that the linkage step in the freeze-produced Makefile fails with:
gcc -pthread -Xlinker -export-dynamic config.o frozen.o M___future__.o [...]
M_zipfile.o /py/3x/unix/root/lib/python3.4/config-3.4dm/libpython3.4dm.so
-lpthread -ldl -lutil -lm -o hello
gcc: error: /py/3x/unix/root/f/../lib/python3.4/config-3.4dm/libpython3.4dm.so:
No such file or directory
Makefile:505: recipe for target 'hello' failed
make: *** [hello] Error 1
The problem is that the freeze linkage step is looking for the python library
with a shared library extension (in this case, '.so') in the config-3.xmm
directory but the library is installed as a static archive ('.a') there:
./lib/python3.4/config-3.4dm/libpython3.4dm.a
I'm unfamiliar with freeze and its history but it looks like the problem was
introduced by the changes for Issue11824, in particular this:
- libs = [os.path.join(binlib, 'libpython$(VERSION).a')]
+ libs = [os.path.join(binlib, '$(LDLIBRARY)')]
The Python Makefile target "libainstall" installs the Python library in the
config* dir:
@if test -d $(LIBRARY); then :; else \
if test "$(PYTHONFRAMEWORKDIR)" = no-framework; then \
if test "$(SHLIB_SUFFIX)" = .dll; then \
$(INSTALL_DATA) $(LDLIBRARY) $(DESTDIR)$(LIBPL)
; \
else \
$(INSTALL_DATA) $(LIBRARY)
$(DESTDIR)$(LIBPL)/$(LIBRARY) ; \
$(RANLIB) $(DESTDIR)$(LIBPL)/$(LIBRARY) ; \
fi; \
else \
echo Skip install of $(LIBRARY) - use make
frameworkinstall; \
fi; \
fi
So, if I understand the cases correctly, for non-".dll" cases, the library is
installed in the config* directory as file name $LIBRARY. But the changed code
in the freeze-generated Makefile looks for the library as $LDLIBRARY. For
static Python builds, $LIBRARY and $LDLIBRARY are (always?) the same, but for
shared builds, they are (usually) not, for example:
LDLIBRARY = "libpython3.4dm.so"
LIBRARY = "libpython3.4dm.a"
I'm not sure what the complete solution should be but clearly what is there now
is not right for shared unix builds.
----------
components: Demos and Tools
messages: 235518
nosy: lemburg, loewis, meador.inge, ned.deily
priority: normal
severity: normal
stage: needs patch
status: open
title: Tools/freeze "make" gets missing file error with unix shared builds
versions: Python 3.4, Python 3.5
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Python tracker <[email protected]>
<http://bugs.python.org/issue23405>
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