--- rpl/Attic/configure	2011/10/03 15:57:51	1.88
+++ rpl/Attic/configure	2011/10/04 19:32:33	1.89
@@ -673,6 +673,7 @@ LN_S
 RUNPATH
 PROFILAGE
 subdirs
+SHARED_MEMORY
 LIBRPLCAS
 RPLCAS
 ABI
@@ -793,6 +794,7 @@ with_32bits_abi
 with_64bits_abi
 with_rpltools
 enable_rplcas
+enable_shared_memory
 enable_optimization
 enable_sysv_ipcs
 enable_full_static
@@ -1467,6 +1469,7 @@ Optional Features:
   --disable-dependency-tracking  speeds up one-time build
   --enable-dependency-tracking   do not reject slow dependency extractors
   --enable-rplcas         compile rplcas (default=no)
+  --enable-shared-memory  enable shared memory [default=yes]
   --enable-optimization   set compiler flags [default=environment variables -O3]
   --enable-sysv-ipcs      use SystemV IPC functions [default=guessed]
   --enable-full-static    build static RPL/2 engine [default=shared]
@@ -5990,6 +5993,22 @@ fi
 
 
 
+
+# Check whether --enable-shared-memory was given.
+if test "${enable_shared_memory+set}" = set; then :
+  enableval=$enable_shared_memory;
+if test "$enableval" = "no"; then
+	SHARED_MEMORY="-USHARED_MEMORY"
+else
+	SHARED_MEMORY="-DSHARED_MEMORY"
+fi
+else
+
+	SHARED_MEMORY="-USHARED_MEMORY"
+fi
+
+
+
 
 # Check whether --enable-optimization was given.
 if test "${enable_optimization+set}" = set; then :