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| author | Lasse Collin <lasse.collin@tukaani.org> | 2009-10-04 22:57:12 +0300 |
|---|---|---|
| committer | Lasse Collin <lasse.collin@tukaani.org> | 2009-10-04 22:57:12 +0300 |
| commit | ebfb2c5e1f344e5c6e549b9dedaa49b0749a4a24 (patch) | |
| tree | 7e2f519ad2be01b8f9c7b230f71d479d550c9ae4 /configure.ac | |
| parent | Add support for --enable-assume-ram=SIZE. (diff) | |
| download | xz-ebfb2c5e1f344e5c6e549b9dedaa49b0749a4a24.tar.xz | |
Use a tuklib module for integer handling.
This replaces bswap.h and integer.h.
The tuklib module uses <byteswap.h> on GNU,
<sys/endian.h> on *BSDs and <sys/byteorder.h>
on Solaris, which may contain optimized code
like inline assembly.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 54 |
1 files changed, 1 insertions, 53 deletions
diff --git a/configure.ac b/configure.ac index d4a51ffd..82a7b1f9 100644 --- a/configure.ac +++ b/configure.ac @@ -315,35 +315,6 @@ AM_CONDITIONAL(COND_ASM_X86, test "x$enable_assembler" = xx86) AM_CONDITIONAL(COND_ASM_X86_64, test "x$enable_assembler" = xx86_64) -################################ -# 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 # ##################### @@ -508,30 +479,6 @@ AC_CHECK_HEADERS([fcntl.h limits.h sys/time.h], [], [AC_MSG_ERROR([Required header file(s) are missing.])]) -# If any of these headers are missing, things should still work correctly: -AC_CHECK_HEADERS([byteswap.h]) - -# Even if we have byteswap.h, we may lack the specific macros/functions. -if test x$ac_cv_header_byteswap_h = xyes ; then - m4_foreach([FUNC], [bswap_16,bswap_32,bswap_64], [ - AC_MSG_CHECKING([if FUNC is available]) - AC_LINK_IFELSE([AC_LANG_SOURCE([ -#include <byteswap.h> -int -main(void) -{ - FUNC[](42); - return 0; -} - ])], [ - AC_DEFINE(HAVE_[]m4_toupper(FUNC), [1], - [Define to 1 if] FUNC [is available.]) - AC_MSG_RESULT([yes]) - ], [AC_MSG_RESULT([no])]) - - ])dnl -fi - ############################################################################### # Checks for typedefs, structures, and compiler characteristics. @@ -578,6 +525,7 @@ gl_GETOPT AC_CHECK_FUNCS([futimens futimes futimesat utimes utime], [break]) TUKLIB_PROGNAME +TUKLIB_INTEGER TUKLIB_PHYSMEM TUKLIB_CPUCORES |