1 files changed, 41 insertions, 0 deletions
diff --git a/autoconf/AutoRegen.sh b/autoconf/AutoRegen.sh
new file mode 100755
index 00000000..4a34f8c0
--- /dev/null
+++ b/autoconf/AutoRegen.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+
+if ([ "$#" != 1 ] || 
+    [ ! -d "$1" ] ||
+    [ ! -d "$1/autoconf/m4" ]); then
+    echo "usage: $0 <llvmsrc-dir>" 1>& 2
+    exit 1
+fi
+
+llvm_src_root=$(cd $1; pwd)
+llvm_m4=$llvm_src_root/autoconf/m4
+die () {
+	echo "$@" 1>&2
+	exit 1
+}
+test -d autoconf && test -f autoconf/configure.ac && cd autoconf
+test -f configure.ac || die "Can't find 'autoconf' dir; please cd into it first"
+autoconf --version | egrep '2\.60' > /dev/null
+if test $? -ne 0 ; then
+  die "Your autoconf was not detected as being 2.60"
+fi
+# Patch LLVM_SRC_ROOT in configure.ac
+sed -e "s#^LLVM_SRC_ROOT=.*#LLVM_SRC_ROOT=\"$llvm_src_root\"#" \
+    configure.ac > configure.tmp.ac
+echo "Regenerating aclocal.m4 with aclocal"
+rm -f aclocal.m4
+echo aclocal -I $llvm_m4 -I "$llvm_m4/.." || die "aclocal failed"
+aclocal -I $llvm_m4 -I "$llvm_m4/.." || die "aclocal failed"
+echo "Regenerating configure with autoconf 2.60"
+echo autoconf --warnings=all -o ../configure configure.tmp.ac || die "autoconf failed"
+autoconf --warnings=all -o ../configure configure.tmp.ac || die "autoconf failed"
+cp ../configure ../configure.bak
+sed -e "s#^LLVM_SRC_ROOT=.*#LLVM_SRC_ROOT=\".\"#" \
+    ../configure.bak > ../configure
+cd ..
+echo "Regenerating config.h.in with autoheader"
+autoheader --warnings=all \
+    -I autoconf -I autoconf/m4 \
+    autoconf/configure.tmp.ac || die "autoheader failed"
+rm -f autoconf/configure.tmp.ac configure.bak
+exit 0