diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 72 |
1 files changed, 71 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index 369c7e5..5ba7d03 100644 --- a/configure.ac +++ b/configure.ac @@ -1543,7 +1543,8 @@ sys/param.h sys/select.h sys/sendfile.h sys/socket.h sys/statvfs.h \ sys/stat.h sys/syscall.h sys/sys_domain.h sys/termio.h sys/time.h \ sys/times.h sys/types.h sys/uio.h sys/un.h sys/utsname.h sys/wait.h pty.h \ libutil.h sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \ -bluetooth/bluetooth.h linux/tipc.h spawn.h util.h alloca.h) +bluetooth/bluetooth.h linux/tipc.h spawn.h util.h alloca.h endian.h \ +sys/endian.h) CPPFLAGS=$ac_save_cppflags AC_HEADER_DIRENT AC_HEADER_MAJOR @@ -1614,6 +1615,22 @@ if test "$ac_cv_has_makedev" = "yes"; then AC_DEFINE(HAVE_MAKEDEV, 1, [Define this if you have the makedev macro.]) fi +# byte swapping +AC_MSG_CHECKING(for le64toh) +AC_LINK_IFELSE([AC_LANG_PROGRAM([[ +#ifdef HAVE_ENDIAN_H +#include <endian.h> +#elif defined(HAVE_SYS_ENDIAN_H) +#include <sys/endian.h> +#endif +]], [[ + le64toh(1) ]]) +],[ac_cv_has_le64toh=yes],[ac_cv_has_le64toh=no]) +AC_MSG_RESULT($ac_cv_has_le64toh) +if test "$ac_cv_has_le64toh" = "yes"; then + AC_DEFINE(HAVE_HTOLE64, 1, [Define this if you have le64toh()]) +fi + # Enabling LFS on Solaris (2.6 to 9) with gcc 2.95 triggers a bug in # the system headers: If _XOPEN_SOURCE and _LARGEFILE_SOURCE are # defined, but the compiler does not support pragma redefine_extname, @@ -2229,6 +2246,59 @@ case "$ac_sys_system" in *) ;; esac +# check for systems that require aligned memory access +AC_MSG_CHECKING(aligned memory access is required) +AC_TRY_RUN([ +int main() +{ + char s[16]; + int i, *p1, *p2; + for (i=0; i < 16; i++) + s[i] = i; + p1 = (int*)(s+1); + p2 = (int*)(s+2); + if (*p1 == *p2) + return 1; + return 0; +} + ], + [aligned_required=no], + [aligned_required=yes], + [aligned_required=yes]) + +if test "$aligned_required" = yes ; then + AC_DEFINE([HAVE_ALIGNED_REQUIRED], [1], + [Define if aligned memory access is required]) +fi +AC_MSG_RESULT($aligned_required) + + +# str, bytes and memoryview hash algorithm +AH_TEMPLATE(Py_HASH_ALGORITHM, + [Define hash algorithm for str, bytes and memoryview. + SipHash24: 1, FNV: 2, externally defined: 0]) + +AC_MSG_CHECKING(for --with-hash-algorithm) +dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output +AC_ARG_WITH(hash_algorithm, + AS_HELP_STRING([--with-hash-algorithm=@<:@fnv|siphash24@:>@], + [select hash algorithm]), +[ +AC_MSG_RESULT($withval) +case "$withval" in + siphash24) + AC_DEFINE(Py_HASH_ALGORITHM, 1) + ;; + fnv) + AC_DEFINE(Py_HASH_ALGORITHM, 2) + ;; + *) + AC_MSG_ERROR([unknown hash algorithm '$withval']) + ;; +esac +], +[AC_MSG_RESULT(default)]) + # Most SVR4 platforms (e.g. Solaris) need -lsocket and -lnsl. AC_CHECK_LIB(nsl, t_open, [LIBS="-lnsl $LIBS"]) # SVR4 AC_CHECK_LIB(socket, socket, [LIBS="-lsocket $LIBS"], [], $LIBS) # SVR4 sockets |