Added "rootfs" feature.

auto/modules/python

@@ -68,6 +68,7 @@ if /bin/sh -c "$NXT_PYTHON_CONFIG --prefix" >> $NXT_AUTOCONF_ERR 2>&1; then
         NXT_PYTHON_CONFIG="${NXT_PYTHON_CONFIG} --embed"
     fi
 
+    NXT_PYTHON_EXEC=`${NXT_PYTHON_CONFIG} --exec-prefix`/bin/${NXT_PYTHON}
     NXT_PYTHON_INCLUDE=`${NXT_PYTHON_CONFIG} --includes`
     NXT_PYTHON_LIBS=`${NXT_PYTHON_CONFIG} --ldflags`
 
@@ -129,6 +130,37 @@ if grep ^$NXT_PYTHON_MODULE: $NXT_MAKEFILE 2>&1 > /dev/null; then
     exit 1;
 fi
 
+
+NXT_PYTHON_MOUNTS_HEADER=$NXT_BUILD_DIR/nxt_python_mounts.h
+
+$NXT_PYTHON_EXEC -c 'import os.path
+import sys
+pyver = "python" + str(sys.version_info[0]) + "." + str(sys.version_info[1])
+
+print("static const nxt_fs_mount_t  nxt_python%d%d_mounts[] = {" % (sys.version_info[0], sys.version_info[1]))
+
+pattern = "{(u_char *) \"%s\", (u_char *) \"%s\", (u_char *) \"bind\", NXT_MS_BIND|NXT_MS_REC, NULL},"
+base = None
+for p in sys.path:
+    if len(p) > 0:
+        if os.path.basename(p) == pyver:
+            base = p
+
+if base is None:
+    raise Exception("failed to compute sys.path mount points")
+
+print(pattern % (base, base))
+
+for p in sys.path:
+    if len(p) > 0:
+        if not p.startswith(base):
+            print(pattern % (p, p))
+
+print("};\n\n")
+
+' >> $NXT_PYTHON_MOUNTS_HEADER
+
+
 $echo " + Python module: ${NXT_PYTHON_MODULE}.unit.so"
 
 . auto/cc/deps
@@ -165,7 +197,7 @@ END
 
 done
 
- 
+
 cat << END >> $NXT_MAKEFILE
 
 .PHONY: ${NXT_PYTHON_MODULE}