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Don't use libtool convenience libraries to avoid recently discovered long-standing subtle but somewhat severe bugs in libtool (at least 1.5.22 and 2.2.6 are affected). It was found when porting XZ Utils to Windows <http://lists.gnu.org/archive/html/libtool/2009-06/msg00070.html> but the problem is significant also e.g. on GNU/Linux. Unless --disable-shared is passed to configure, static library built from a set of convenience libraries will contain PIC objects. That is, while libtool builds non-PIC objects too, only PIC objects will be used from the convenience libraries. On 32-bit x86 (tested on mobile XP2400+), using PIC instead of non-PIC makes the decompressor 10 % slower with the default CFLAGS. So while xz was linked against static liblzma by default, it got the slower PIC objects unless --disable-shared was used. I tend develop and benchmark with --disable-shared due to faster build time, so I hadn't noticed the problem in benchmarks earlier. This commit also adds support for building Windows resources into liblzma and executables.
44 lines
823 B
Makefile
44 lines
823 B
Makefile
##
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## Author: Lasse Collin
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##
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## This file has been put into the public domain.
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## You can do whatever you want with this file.
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##
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EXTRA_DIST += lzma/fastpos_tablegen.c
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liblzma_la_SOURCES += lzma/lzma_common.h
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if COND_ENCODER_LZMA1
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liblzma_la_SOURCES += \
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lzma/fastpos.h \
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lzma/lzma_encoder.h \
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lzma/lzma_encoder.c \
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lzma/lzma_encoder_presets.c \
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lzma/lzma_encoder_private.h \
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lzma/lzma_encoder_optimum_fast.c \
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lzma/lzma_encoder_optimum_normal.c
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if !COND_SMALL
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liblzma_la_SOURCES += lzma/fastpos_table.c
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endif
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endif
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if COND_DECODER_LZMA1
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liblzma_la_SOURCES += \
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lzma/lzma_decoder.c \
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lzma/lzma_decoder.h
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endif
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if COND_ENCODER_LZMA2
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liblzma_la_SOURCES += \
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lzma/lzma2_encoder.c \
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lzma/lzma2_encoder.h
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endif
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if COND_DECODER_LZMA2
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liblzma_la_SOURCES += \
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lzma/lzma2_decoder.c \
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lzma/lzma2_decoder.h
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endif
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