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xz/src/liblzma/lzma/Makefile.inc

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Build system fixes 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.
2009-06-30 14:09:57 +00:00
##
## Author: Lasse Collin
##
## This file has been put into the public domain.
## You can do whatever you want with this file.
##
EXTRA_DIST += lzma/fastpos_tablegen.c
liblzma_la_SOURCES += lzma/lzma_common.h
Build: Build LZMA1/2 presets also when only decoder is wanted. People shouldn't rely on the presets when decoding raw streams, but xz uses the presets as the starting point for raw decoder options anyway. lzma_encocder_presets.c was renamed to lzma_presets.c to make it clear it's not used solely by the encoder code.
2015-11-03 16:06:40 +00:00
if COND_FILTER_LZMA1
liblzma_la_SOURCES += \
lzma/lzma_presets.c
endif
Build system fixes 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.
2009-06-30 14:09:57 +00:00
if COND_ENCODER_LZMA1
liblzma_la_SOURCES += \
lzma/fastpos.h \
lzma/lzma_encoder.h \
lzma/lzma_encoder.c \
lzma/lzma_encoder_private.h \
lzma/lzma_encoder_optimum_fast.c \
lzma/lzma_encoder_optimum_normal.c
if !COND_SMALL
liblzma_la_SOURCES += lzma/fastpos_table.c
endif
endif
if COND_DECODER_LZMA1
liblzma_la_SOURCES += \
lzma/lzma_decoder.c \
lzma/lzma_decoder.h
endif
if COND_ENCODER_LZMA2
liblzma_la_SOURCES += \
lzma/lzma2_encoder.c \
lzma/lzma2_encoder.h
endif
if COND_DECODER_LZMA2
liblzma_la_SOURCES += \
lzma/lzma2_decoder.c \
lzma/lzma2_decoder.h
endif