From 109294e6e20afd46e3a1bdc722d900cec839716d Mon Sep 17 00:00:00 2001
From: Allen Byrne <byrn@hdfgroup.org>
Date: Thu, 2 Dec 2010 09:31:40 -0500
Subject: [svn-r19865] Correct INSTALL_PREFIX handling

---
 CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0b3985b..ccab5d5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -133,7 +133,9 @@ SET (HDF5_PERFORM_SRC_DIR    ${HDF5_SOURCE_DIR}/perform)
 SET (HDF5_F90_SRC_DIR        ${HDF5_SOURCE_DIR}/fortran)
 
 # set default prefix location
-SET (CMAKE_INSTALL_PREFIX "./hdf5" CACHE PATH "Install path prefix, prepended onto install directories")
+IF(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  SET(CMAKE_INSTALL_PREFIX "hdf5" CACHE PATH "Install path prefix, prepended onto install directories" FORCE)
+ENDIF(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
 
 IF (NOT HDF5_INSTALL_BIN_DIR)
   SET (HDF5_INSTALL_BIN_DIR bin)
-- 
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