--- a/INSTALL	Wed Oct 16 04:12:50 2002 +0300
+++ b/INSTALL	Wed Oct 16 04:25:14 2002 +0300
@@ -48,6 +48,19 @@
 larger than 2GB, so you may want to drop this to 32bit for a bit smaller
 disk and memory usage.
 
+  --with-mem-align=BYTES
+
+Specifies memory alignment, needed with many non-x86 systems and should
+speed up x86 systems too. Default is 8 with everyone to make sure 64bit
+memory accessing work. Currently it should also be safe to set to 4 when
+using 32bit file offets. With x86 it could be 1 as well if you want to save
+a bit of disk space (in .imap.index.data file) and memory.
+
+Specifies memory alignment to use. Many non-x86 systems require this 
+
+With many non-x86 systems this is
+required to be 64bit (8 bytes) since all 64bit memo
+
   --with-passwd           Build with /etc/passwd support (default)
   --with-passwd-file      Build with passwd-like file support (default)
   --with-shadow           Build with shadow password support (default)

--- a/configure.in	Wed Oct 16 04:12:50 2002 +0300
+++ b/configure.in	Wed Oct 16 04:25:14 2002 +0300
@@ -30,10 +30,15 @@
 
 AC_ARG_WITH(file-offset-size,
 [  --with-file-offset-size=BITS  Set size of file offsets. Usually 32 or 64.
-                          (default: 64 if available) ],
+                          (default: 64 if available)],
 	preferred_off_t_bits=$withval,
 	preferred_off_t_bits=64)
 
+AC_ARG_WITH(mem-align,
+[  --with-mem-align=BYTES  Set the memory alignment (default: 8)],
+	mem_align=$withval,
+	mem_align=8)
+
 AC_ARG_WITH(passwd,
 [  --with-passwd           Build with /etc/passwd support (default)],
 	if test x$withval = xno; then
@@ -216,11 +221,8 @@
   AC_DEFINE(LARGEST_T_LONG)
 fi
 
-dnl * memory alignment, needed with non-x86 systems and should speed up
-dnl * x86 systems too. Use 8 with everyone to make sure 64bit lookups
-dnl * work. Currently it should also be safe to set to 4 if off_t == 32bit.
-dnl * With x86 it could be 1 as well if you want to save a bit space/memory.
-AC_DEFINE(MEM_ALIGN_SIZE, 8)
+dnl * memory alignment
+AC_DEFINE_UNQUOTED(MEM_ALIGN_SIZE, $mem_align)
 
 dnl * socklen_t - AC_CHECK_TYPE() would be _really_ useful if it only would
 dnl * accept header files where to find the typedef..