CMake: doing proper string comparison in IF clause

diff --git a/SalomeGEOMConfig.cmake.in b/SalomeGEOMConfig.cmake.in
index d09e54767ddd4b3ef54c2a5267d06f7e2597c143..b15d963620741992d6b5e204f8d34e28672ac28a 100644 (file)
--- a/SalomeGEOMConfig.cmake.in
+++ b/SalomeGEOMConfig.cmake.in
@@ -83,7 +83,7 @@ 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}"