CMake: doing proper string comparison in IF clause

diff --git a/SalomeATOMICConfig.cmake.in b/SalomeATOMICConfig.cmake.in
index 133aa20e27d4db9a185215871a87aa0e6e3af8d1..416f49bf01325dc43b51850a265087fda4d521a4 100644 (file)
--- a/SalomeATOMICConfig.cmake.in
+++ b/SalomeATOMICConfig.cmake.in
@@ -67,7 +67,7 @@ MATH(EXPR _range "${_list_len}-1")
 FOREACH(_p RANGE ${_range})  
   LIST(GET _PREREQ            ${_p} _pkg    )
   LIST(GET _PREREQ_CONFIG_DIR ${_p} _pkg_dir)
-  IF(_pkg_dir)
+  IF(NOT _pkg_dir STREQUAL "")
      MESSAGE(STATUS "===> Reloading targets from ${_pkg} ...")
      FIND_PACKAGE(${_pkg} REQUIRED NO_MODULE 
           PATHS "${_pkg_dir}"