Stefan Krah added the comment:
Fixed in 2.7, 3.5 and default. Thanks everyone for the comments.
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assignee: - skrah
components: +Build
resolution: - fixed
stage: - resolved
status: open - closed
type: - compile error
versions: +Python 3.4, Python 3.5
Roundup Robot added the comment:
New changeset 2a3c0ad52b99 by Stefan Krah in branch '2.7':
Issue #24543: Use AC_LINK instead of AC_COMPILE in order to prevent false
https://hg.python.org/cpython/rev/2a3c0ad52b99
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marxin added the comment:
Works for me.
Thanks!
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Stefan Krah added the comment:
Okay, I'll have a look then (I first assumed this was mc68881 specific).
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nosy: +skrah
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marxin added the comment:
As I wrote, starting from GCC 4.9.0, the compiler does not emit any assembly
with -flto and -c option. I would suggest to remove '-c' option that will force
to create an executable.
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Changes by Stefan Krah ste...@bytereef.org:
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nosy: +ivank
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Stefan Krah added the comment:
In what way are the x64/x87 tests broken? ./configure runs smoothly
here (gcc 4.8.2) with and without -flto.
Can you try =m and m for the asm output operands?
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Andreas Schwab added the comment:
Please use AC_LINK_IFELSE. No need for a runtime test that breaks cross
compilation.
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Stefan Krah added the comment:
-c is apparently generated by AC_COMPILE_IFELSE, which uses ac_compile.
The alternative is using AC_RUN_IFELSE, which uses ac_link.
Do you see any other possibility of dropping the -c during ./configure?
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Roundup Robot added the comment:
New changeset 2be983173f45 by Stefan Krah in branch '3.5':
Issue #24543: Use AC_LINK instead of AC_COMPILE in order to prevent false
https://hg.python.org/cpython/rev/2be983173f45
New changeset 8f30776602b4 by Stefan Krah in branch 'default':
Merge from 3.5
Stefan Krah added the comment:
I guess we should backport the x87 fix to 2.7.
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versions: +Python 2.7 -Python 3.5
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Changes by Andreas Schwab sch...@linux-m68k.org:
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title: Configure script wrongly detects mc68881 with -flto option passed -
Configure script wrongly detects x64/x87/mc68881 with -flto option passed
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