diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/configure.ac b/configure.ac index eae62c2b..761b74c6 100644 --- a/configure.ac +++ b/configure.ac @@ -26,7 +26,7 @@ AC_PREREQ(2.61) # [LZMA] instead of [LZMA utils] since I prefer to have lzma-version.tar.gz # instead of lzma-utils-version.tar.gz. -AC_INIT([LZMA], [4.999.3alpha], [lasse.collin@tukaani.org]) +AC_INIT([LZMA], [4.999.5alpha], [lasse.collin@tukaani.org]) AC_CONFIG_SRCDIR([src/liblzma/common/common.h]) AC_CONFIG_HEADER([config.h]) @@ -86,12 +86,12 @@ AM_CONDITIONAL(COND_MAIN_DECODER, test "x$enable_decoder" = xyes) # Filters AC_MSG_CHECKING([which filters to build]) -AC_ARG_ENABLE(filters, AC_HELP_STRING([--enable-filters=], +AC_ARG_ENABLE(filters, AC_HELP_STRING([--enable-filters=LIST], [Comma-separated list of filters to build. Default=all. Filters used in encoding are needed also in decoding. Available filters: copy subblock x86 powerpc ia64 arm armthumb sparc delta lzma]), - [], [enable_filters=copy,subblock,x86,powerpc,ia64,arm,armthumb,sparc,delta,lzma]) + [], [enable_filters=copy,subblock,x86,powerpc,ia64,arm,armthumb,sparc,delta,lzma]) enable_filters=`echo "$enable_filters" | sed 's/,/ /g'` enable_filters_copy=no enable_filters_subblock=no @@ -203,7 +203,7 @@ AM_CONDITIONAL(COND_MAIN_SIMPLE, test "x$enable_simple_filters" = xyes) # Which match finders should be enabled: AC_MSG_CHECKING([which match finders to build]) -AC_ARG_ENABLE(match-finders, AC_HELP_STRING([--enable-match-finders=], +AC_ARG_ENABLE(match-finders, AC_HELP_STRING([--enable-match-finders=LIST], [Comma-separated list of match finders to build. Default=all. At least one match finder is required for encoding with the LZMA filter. @@ -242,10 +242,10 @@ AM_CONDITIONAL(COND_MF_BT4, test "x$enable_match_finders_bt4" = xyes) # Which integrity checks to build AC_MSG_CHECKING([which integrity checks to build]) -AC_ARG_ENABLE(checks, AC_HELP_STRING([--enable-checks=], +AC_ARG_ENABLE(checks, AC_HELP_STRING([--enable-checks=LIST], [Comma-separated list of integrity checks to build. Default=all. Available integrity checks: crc32 crc64 sha256]), - [], [enable_checks=crc32,crc64,sha256]) + [], [enable_checks=crc32,crc64,sha256]) enable_checks=`echo "$enable_checks" | sed 's/,/ /g'` enable_checks_crc32=no enable_checks_crc64=no @@ -294,7 +294,7 @@ AC_MSG_CHECKING([if assembler optimizations should be used]) AC_ARG_ENABLE(assembler, AC_HELP_STRING([--disable-assembler], [Do not use assembler optimizations even if such exist for the architecture.]), - [], [enable_assembler=yes]) + [], [enable_assembler=yes]) if test "x$enable_assembler" = xyes; then case $host_cpu in i?86) enable_assembler=x86 ;; @@ -327,13 +327,38 @@ esac AC_MSG_RESULT([$enable_assembler]) AM_CONDITIONAL(COND_ASM_X86, test "x$enable_assembler" = xx86) +# Fast unaligned memory access +AC_MSG_CHECKING([if unaligned memory access should be used]) +AC_ARG_ENABLE(unaligned-access, AC_HELP_STRING([--enable-unaligned-access], + [Enable if the system supports *fast* unaligned memory access + with 16-bit and 32-bit integers. By default, this is enabled + only on x86, x86_64, and big endian PowerPC.]), + [], [enable_unaligned_access=auto]) +if test "x$enable_unaligned_access" = xauto ; then + case $host_cpu in + i?86|x86_64|powerpc|powerpc64) + enable_unaligned_access=yes + ;; + *) + enable_unaligned_access=no + ;; + esac +fi +if test "x$enable_unaligned_access" = xyes ; then + AC_DEFINE([HAVE_FAST_UNALIGNED_ACCESS], [1], [Define to 1 if + the system supports fast unaligned memory access.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + # Size optimization AC_MSG_CHECKING([if small size is preferred over speed]) AC_ARG_ENABLE(small, AC_HELP_STRING([--enable-small], [Omit precomputed tables to make liblzma a few kilobytes smaller. This will increase startup time of applications slightly, because the tables need to be computed first.]), - [], [enable_small=no]) + [], [enable_small=no]) if test "x$enable_small" = xyes; then AC_DEFINE([HAVE_SMALL], 1, [Define to 1 if optimizing for size.]) elif test "x$enable_small" != xno; then |