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classification
Title: OSX: duplicate -arch flags in CFLAGS breaks sysconfig
Type: compile error Stage: resolved
Components: Build Versions: Python 2.7
process
Status: closed Resolution: duplicate
Dependencies: Superseder: OS X universal builds fail on 2.7b1 and py3k with "Don't know machine value for archs"
View: 8366
Assigned To: Nosy List: r.david.murray, robind
Priority: normal Keywords:

Created on 2010-05-04 00:25 by robind, last changed 2022-04-11 14:57 by admin. This issue is now closed.

Messages (2)
msg104905 - (view) Author: Robin Dunn (robind) Date: 2010-05-04 00:25 
In Python 2.7b1, building on OSX 10.6 with this configure command:

export CC=gcc-4.0
export CXX=g++-4.0
export MACOSX_DEPLOYMENT_TARGET=10.4
../configure \
	--with-universal-archs=32-bit \
	--enable-universalsdk=/Developer/SDKs/MacOSX10.4u.sdk \
	--enable-framework 


Results in these lines in Makefile:

BASECFLAGS=	-arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk  -fno-common -dynamic
CFLAGS=		$(BASECFLAGS) -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk  $(OPT) $(EXTRA_CFLAGS)


Then later on in the build the sysconfig module uses the -arch flags in CFLAGS but is not able to find a match because of the extra set of values, and the build fails with this exception:

Traceback (most recent call last):
  File "./../Lib/site.py", line 542, in <module>
    main()
  File "./../Lib/site.py", line 521, in main
    addbuilddir()
  File "./../Lib/site.py", line 118, in addbuilddir
    s = "build/lib.%s-%.3s" % (get_platform(), sys.version)
  File "/projects/Python-2.7b1/Lib/sysconfig.py", line 646, in get_platform
    "Don't know machine value for archs=%r"%(archs,))
ValueError: Don't know machine value for archs=('i386', 'i386', 'ppc', 'ppc')
make: *** [sharedmods] Error 1
msg104907 - (view) Author: R. David Murray (r.david.murray) * (Python committer) Date: 2010-05-04 00:57 
This is a duplicate of issue 8366.
History
Date User Action Args
2022-04-11 14:57:00adminsetgithub: 52853
2010-05-04 00:57:04r.david.murraysetstatus: open -> closed

superseder: OS X universal builds fail on 2.7b1 and py3k with "Don't know machine value for archs"

nosy: + r.david.murray
messages: + msg104907
resolution: duplicate
stage: resolved
2010-05-04 00:25:08robindcreate