1 files changed, 45 insertions, 0 deletions
diff --git a/config/prep_buildtree b/config/prep_buildtree
new file mode 100644
index 0000000..a0eabd3
--- /dev/null
+++ b/config/prep_buildtree
@@ -0,0 +1,45 @@
+#! /bin/sh
+
+# This script prepares a PostgreSQL build tree.  It is intended
+# to be run by the configure script.
+
+me=`basename $0`
+
+help="\
+Usage: $me sourcetree [buildtree]"
+
+if test -z "$1"; then
+    echo "$help" 1>&2
+    exit 1
+elif test x"$1" = x"--help"; then
+    echo "$help"
+    exit 0
+fi
+
+unset CDPATH
+
+sourcetree=`cd $1 && pwd`
+
+buildtree=`cd ${2:-'.'} && pwd`
+
+# We must not auto-create the subdirectories holding built documentation.
+# If we did, it would interfere with installation of prebuilt docs from
+# the source tree, if a VPATH build is done from a distribution tarball.
+# See bug #5595.
+for item in `find "$sourcetree" -type d \( \( -name CVS -prune \) -o \( -name .git -prune \) -o -print \) | grep -v "$sourcetree/doc/src/sgml/\+"`; do
+    subdir=`expr "$item" : "$sourcetree\(.*\)"`
+    if test ! -d "$buildtree/$subdir"; then
+        mkdir -p "$buildtree/$subdir" || exit 1
+    fi
+done
+
+for item in `find "$sourcetree" -name Makefile -print -o -name GNUmakefile -print | grep -v "$sourcetree/doc/src/sgml/images/"`; do
+    filename=`expr "$item" : "$sourcetree\(.*\)"`
+    if test ! -f "${item}.in"; then
+        if cmp "$item" "$buildtree/$filename" >/dev/null 2>&1; then : ; else
+            ln -fs "$item" "$buildtree/$filename" || exit 1
+        fi
+    fi
+done
+
+exit 0