56 lines
2.0 KiB
Diff
56 lines
2.0 KiB
Diff
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Use correct mechanism to determine 32/64 bits
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Python setup.py builds certain extensions (dl and imageop) only on 32
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bits architecture. However, to test whether the architecture is 32
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bits or not, it was looking at the sys.maxint value of the host Python
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interpreter... which might run on a 64 bits architecture even though
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the target is 32 bits, or which might run on a 32 bits architecture
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even though the target is 64 bits.
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Therefore, we introduce a is_arch_64_bits() function, which looks at
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the pyconfig.h file generated by ./configure for the value of
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SIZEOF_LONG to determine if the architecture is 32 or 64 bits.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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---
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setup.py | 12 ++++++++++--
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1 file changed, 10 insertions(+), 2 deletions(-)
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Index: Python-2.7.1/setup.py
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===================================================================
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--- Python-2.7.1.orig/setup.py
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+++ Python-2.7.1/setup.py
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@@ -29,6 +29,14 @@
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except KeyError:
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disabled_module_list = list()
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+def is_arch_64_bits():
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+ data = open('pyconfig.h').read()
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+ m = re.search(r"#s*define\s+SIZEOF_LONG\s+4\s*", data)
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+ if m is None:
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+ return True
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+ else:
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+ return False
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+
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def add_dir_to_list(dirlist, dir):
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"""Add the directory 'dir' to the list 'dirlist' (at the front) if
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1) 'dir' is not already in 'dirlist'
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@@ -608,7 +616,7 @@
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exts.append( Extension('audioop', ['audioop.c']) )
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# Disabled on 64-bit platforms
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- if sys.maxint != 9223372036854775807L:
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+ if not is_arch_64_bits():
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# Operations on images
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exts.append( Extension('imageop', ['imageop.c']) )
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else:
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@@ -1424,7 +1432,7 @@
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missing.append('_codecs_%s' % loc)
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# Dynamic loading module
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- if sys.maxint == 0x7fffffff:
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+ if not is_arch_64_bits():
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# This requires sizeof(int) == sizeof(long) == sizeof(char*)
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dl_inc = find_file('dlfcn.h', [], inc_dirs)
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if (dl_inc is not None) and (platform not in ['atheos']):
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