diff --git a/src/engine/build.jam b/src/engine/build.jam
index 2fe065859..8d364450a 100644
--- a/src/engine/build.jam
+++ b/src/engine/build.jam
@@ -50,6 +50,11 @@ rule toolset ( name command : opt.out + : opt.define + : release-flags * : debug
     tool.$(name).linklibs ?= $(linklibs) ;
     toolsets += $(name) ;
 }
+## HP-UX aCC compiler
+toolset acc cc : "-o " : -D
+    : -s -O3
+    : -g -pg
+    : -llibstd_v2.sl ;
 ## Borland C++ 5.5.x
 toolset borland bcc32 : -e -n : /D
     : -WC -w- -q "-I$(toolset-root)Include" "-L$(toolset-root)Lib" -O2 -vi -w-inl
diff --git a/src/engine/build.sh b/src/engine/build.sh
index 5bdbe00a3..00aab282a 100755
--- a/src/engine/build.sh
+++ b/src/engine/build.sh
@@ -10,7 +10,7 @@ BOOST_JAM_TOOLSET=
 
 # Run a command, and echo before doing so. Also checks the exit
 # status and quits if there was an error.
-function echo_run
+echo_run ()
 {
     echo "$@"
     "$@"
@@ -21,7 +21,7 @@ function echo_run
 }
 
 # Print an error message, and exit with a status of 1.
-function error_exit
+error_exit ()
 {
     echo "###"
     echo "###" "$@"
@@ -29,19 +29,19 @@ function error_exit
     echo "### You can specify the toolset as the argument, i.e.:"
     echo "###     ./build.sh gcc"
     echo "###"
-    echo "### Toolsets supported by this script are: como, darwin, gcc, intel-linux, kcc, kylix, mipspro, sunpro, tru64cxx, vacpp"
+    echo "### Toolsets supported by this script are: acc, como, darwin, gcc, intel-linux, kcc, kylix, mipspro, sunpro, tru64cxx, vacpp"
     echo "###"
     exit 1
 }
 
 # Check that a command is in the PATH.
-function test_path
+test_path ()
 {
     hash $1 2>/dev/null
 }
 
 # Check that the OS name, as returned by "uname", is as given.
-function test_uname
+test_uname ()
 {
     if test_path uname; then
         test `uname` = $*
@@ -49,7 +49,7 @@ function test_uname
 }
 
 # Try and guess the toolset to bootstrap the build with...
-function Guess_Toolset
+Guess_Toolset ()
 {
     if test_uname Darwin ; then BOOST_JAM_TOOLSET=darwin
     elif test_path gcc ; then BOOST_JAM_TOOLSET=gcc
@@ -61,6 +61,7 @@ function Guess_Toolset
     elif test_path como ; then BOOST_JAM_TOOLSET=como
     elif test_path KCC ; then BOOST_JAM_TOOLSET=kcc
     elif test_path bc++ ; then BOOST_JAM_TOOLSET=kylix
+    elif test_path aCC ; then BOOST_JAM_TOOLSET=acc
     fi
     if test "$BOOST_JAM_TOOLSET" = "" ; then
         error_exit "Could not find a suitable toolset."
@@ -124,6 +125,10 @@ case $BOOST_JAM_TOOLSET in
     tru64cxx)
     BOOST_JAM_CC=cc
     ;;
+    
+    acc)
+    BOOST_JAM_CC=cc
+    ;;
    
     *)
     error_exit "Unknown toolset: $BOOST_JAM_TOOLSET"