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56 lines
1.5 KiB
Bash
Executable File
56 lines
1.5 KiB
Bash
Executable File
#!/bin/sh -e
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# Without this environment variable being set to some arbitrary value,
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# python's module loader uses timestamps for cache invalidation. Something
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# goes wrong here and all pyc files are seen as stale.
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#
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# By setting this value, python uses checksums for cache invalidation which
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# (on my machine) drops startup time from 3 seconds to 0.060s. Further
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# investigation is needed.
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export SOURCE_DATE_EPOCH=1628593994
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# Remove util-linux dependency among other things.
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cat >> Modules/Setup <<EOF
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*disabled*
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_uuid nis ossaudiodev
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EOF
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# Reported 20-27% performance improvements.
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# See: "PythonNoSemanticInterpositionSpeedup"
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export CFLAGS="$CFLAGS -fno-semantic-interposition"
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export LDFLAGS="$LDFLAGS -fno-semantic-interposition"
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patch -p1 < python3-always-pip.patch
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./configure \
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--prefix=/usr \
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--enable-shared \
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--with-system-expat \
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--with-system-ffi \
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--with-ensurepip=yes \
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--without-doc-strings
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make EXTRA_CFLAGS="$CFLAGS -DTHREAD_STACK_SIZE=0x100000"
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make install
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ln -s python3 "$1/usr/bin/python"
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ln -s pip3 "$1/usr/bin/pip"
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# Make static library writable.
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chmod u+w "$1/usr/lib/libpython"*
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# Let's make some kind of effort to reduce the overall
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# size of Python by removing a bunch of rarely used and
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# otherwise useless components.
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#
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# This can't be done via ./configure as the build system
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# doesn't give you this much control over the process.
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{
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cd "$1/usr/lib/python"*
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rm -rf test ./*/test ./*/tests
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rm -rf pydoc* idlelib turtle* config-*
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cd "$1/usr/bin"
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rm -f pydoc* idle*
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}
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