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--- Python-3.5.1/Makefile.pre.in.kh 2015-12-17 05:51:08.466546157 -0500
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+++ Python-3.5.1/Makefile.pre.in 2015-12-17 05:52:26.207761635 -0500
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@@ -587,11 +587,15 @@ pybuilddir.txt: $(BUILDPYTHON)
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exit 1 ; \
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fi
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+# This is shared by the math and cmath modules
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+Modules/_math.o: Modules/_math.c Modules/_math.h
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+ $(CC) -c $(CCSHARED) $(PY_CORE_CFLAGS) -o $@ $<
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+
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# Build the shared modules
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# Under GNU make, MAKEFLAGS are sorted and normalized; the 's' for
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# -s, --silent or --quiet is always the first char.
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# Under BSD make, MAKEFLAGS might be " -s -v x=y".
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-sharedmods: $(BUILDPYTHON) pybuilddir.txt
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+sharedmods: $(BUILDPYTHON) pybuilddir.txt Modules/_math.o
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@case "$$MAKEFLAGS" in \
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*\ -s*|s*) quiet="-q";; \
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*) quiet="";; \
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--- Python-3.5.1/Misc/NEWS.kh 2015-12-17 05:53:40.898929946 -0500
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+++ Python-3.5.1/Misc/NEWS 2015-12-17 05:54:28.599676136 -0500
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@@ -464,6 +464,10 @@ Build
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- Issue #24986: It is now possible to build Python on Windows without errors
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when external libraries are not available.
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+- Issue #24421: Compile Modules/_math.c once, before building extensions.
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+ Previously it could fail to compile properly if the math and cmath builds
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+ were concurrent.
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+
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Windows
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-------
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--- Python-3.5.1/setup.py.kh 2015-12-17 06:38:30.950955607 -0500
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+++ Python-3.5.1/setup.py 2015-12-17 06:42:32.074722493 -0500
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@@ -582,13 +582,17 @@ class PyBuildExt(build_ext):
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# array objects
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exts.append( Extension('array', ['arraymodule.c']) )
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+
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+ shared_math = 'Modules/_math.o'
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# complex math library functions
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- exts.append( Extension('cmath', ['cmathmodule.c', '_math.c'],
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- depends=['_math.h'],
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+ exts.append( Extension('cmath', ['cmathmodule.c'],
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+ extra_objects=[shared_math],
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+ depends=['_math.h', shared_math],
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libraries=math_libs) )
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# math library functions, e.g. sin()
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- exts.append( Extension('math', ['mathmodule.c', '_math.c'],
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- depends=['_math.h'],
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+ exts.append( Extension('math', ['mathmodule.c'],
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+ extra_objects=[shared_math],
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+ depends=['_math.h', shared_math],
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libraries=math_libs) )
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# time libraries: librt may be needed for clock_gettime()
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