CMake: doing proper string comparison in IF clause

diff --git a/SalomeGHS3DPLUGINConfig.cmake.in b/SalomeGHS3DPLUGINConfig.cmake.in
index b6e7c8ff49b0fde85f4ea1d8d0bc3c15ee2ac0b2..493e8d5e6c0d1d8f987d95131a4a3d287593fc21 100644 (file)
--- a/SalomeGHS3DPLUGINConfig.cmake.in
+++ b/SalomeGHS3DPLUGINConfig.cmake.in
@@ -69,7 +69,7 @@ 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}"