diff --git a/Tests/Complex/CMakeLists.txt b/Tests/Complex/CMakeLists.txt
index d9c756822..c119f14ea 100644
--- a/Tests/Complex/CMakeLists.txt
+++ b/Tests/Complex/CMakeLists.txt
@@ -3,6 +3,9 @@
 #
 PROJECT (Complex)
 
+# For borland since CMakeLib is a dll all .cxx files have
+# to be compiled with -tWR to get the dll version of the borland
+# standard library
 IF(BORLAND)
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -tWR")
   SET(CMAKE_LINKER_FLAGS "${CMAKE_LINKER_FLAGS} -tWR")
diff --git a/Tests/ComplexOneConfig/CMakeLists.txt b/Tests/ComplexOneConfig/CMakeLists.txt
index d9c756822..c119f14ea 100644
--- a/Tests/ComplexOneConfig/CMakeLists.txt
+++ b/Tests/ComplexOneConfig/CMakeLists.txt
@@ -3,6 +3,9 @@
 #
 PROJECT (Complex)
 
+# For borland since CMakeLib is a dll all .cxx files have
+# to be compiled with -tWR to get the dll version of the borland
+# standard library
 IF(BORLAND)
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -tWR")
   SET(CMAKE_LINKER_FLAGS "${CMAKE_LINKER_FLAGS} -tWR")
diff --git a/Tests/ComplexRelativePaths/CMakeLists.txt b/Tests/ComplexRelativePaths/CMakeLists.txt
index d9c756822..c119f14ea 100644
--- a/Tests/ComplexRelativePaths/CMakeLists.txt
+++ b/Tests/ComplexRelativePaths/CMakeLists.txt
@@ -3,6 +3,9 @@
 #
 PROJECT (Complex)
 
+# For borland since CMakeLib is a dll all .cxx files have
+# to be compiled with -tWR to get the dll version of the borland
+# standard library
 IF(BORLAND)
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -tWR")
   SET(CMAKE_LINKER_FLAGS "${CMAKE_LINKER_FLAGS} -tWR")