CMake: doing proper string comparison in IF clause

diff --git a/SalomeMEDConfig.cmake.in b/SalomeMEDConfig.cmake.in
index 3cb2834b026bea8fc1daa49f560ae9ffd5568305..fbc10b488265563dcab56e51f0e8eeeb352f4d51 100644 (file)
--- a/SalomeMEDConfig.cmake.in
+++ b/SalomeMEDConfig.cmake.in
@@ -94,7 +94,7 @@ 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}"