[disable compilation of the kernel module with optimization (defaults
based on platform)])],
,
- [enable_optimize_kernel="yes"])
+ [enable_optimize_kernel=""])
AC_ARG_ENABLE([debug-lwp],
[AS_HELP_STRING([--enable-debug-lwp],
[enable compilation of the LWP code with debugging information
MT_CFLAGS="${MT_CFLAGS} -DAFS_PTHREAD_ENV"
#
+# Defaults for --enable-optimize-kernel
+#
+if test "x$enable_optimize_kernel" = "x" ; then
+ AS_CASE([$AFS_SYSNAME],
+ [sunx86_510|sunx86_511],
+ dnl Somewhere around Solaris Studio 12.*, the compiler started adding SSE
+ dnl instructions to optimized code, without any ability to turn it off.
+ dnl So just default to not optimizing kernel code for the relevant
+ dnl platforms, until we get a better autoconf test for this.
+ [enable_optimize_kernel=no],
+ [enable_optimize_kernel=yes])
+fi
+
+#
# Special build targets
#
case $AFS_SYSNAME in