diff -r 000000000000 -r c1449228cbb5 scripts/build/companion_tools/200-autoconf.sh
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/build/companion_tools/200-autoconf.sh	Fri Aug 06 23:45:18 2010 +0200
@@ -0,0 +1,32 @@
+# Build script for autoconf
+
+CT_AUTOCONF_VERSION=2.65
+
+do_companion_tools_autoconf_get() {
+    CT_GetFile "autoconf-${CT_AUTOCONF_VERSION}" \
+               {ftp,http}://ftp.gnu.org/gnu/autoconf
+}
+
+do_companion_tools_autoconf_extract() {
+    CT_Extract "autoconf-${CT_AUTOCONF_VERSION}"
+    CT_Patch "autoconf-${CT_AUTOCONF_VERSION}"
+}
+
+do_companion_tools_autoconf_build() {
+    CT_DoStep EXTRA "Installing autoconf"
+    mkdir -p "${CT_BUILD_DIR}/build-autoconf"
+    CT_Pushd "${CT_BUILD_DIR}/build-autoconf"
+    
+    # Ensure configure gets run using the CONFIG_SHELL as configure seems to
+    # have trouble when CONFIG_SHELL is set and /bin/sh isn't bash
+    # For reference see:
+    # http://www.gnu.org/software/autoconf/manual/autoconf.html#CONFIG_005fSHEL
+    
+    CT_DoExecLog ALL ${CONFIG_SHELL} \
+    "${CT_SRC_DIR}/autoconf-${CT_AUTOCONF_VERSION}/configure" \
+        --prefix="${CT_TOOLS_OVERIDE_DIR}"
+    CT_DoExecLog ALL make
+    CT_DoExecLog ALL make install
+    CT_Popd
+    CT_EndStep
+}