diff --git a/Modules/Platform/FreeBSD.cmake b/Modules/Platform/FreeBSD.cmake
index 7ce53454b..3970acf46 100644
--- a/Modules/Platform/FreeBSD.cmake
+++ b/Modules/Platform/FreeBSD.cmake
@@ -8,4 +8,14 @@ IF(EXISTS /usr/include/dlfcn.h)
   SET(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-Wl,-soname,")
   SET(CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG "-Wl,-soname,")
 ENDIF(EXISTS /usr/include/dlfcn.h)
+
+# Initialize C link type selection flags.  These flags are used when
+# building a shared library, shared module, or executable that links
+# to other libraries to select whether to use the static or shared
+# versions of the libraries.
+FOREACH(type SHARED_LIBRARY SHARED_MODULE EXE)
+  SET(CMAKE_${type}_LINK_STATIC_C_FLAGS "-Wl,-Bstatic")
+  SET(CMAKE_${type}_LINK_DYNAMIC_C_FLAGS "-Wl,-Bdynamic")
+ENDFOREACH(type)
+
 INCLUDE(Platform/UnixPaths)
diff --git a/Modules/Platform/HP-UX.cmake b/Modules/Platform/HP-UX.cmake
index 0bc3c3e6e..62359c628 100644
--- a/Modules/Platform/HP-UX.cmake
+++ b/Modules/Platform/HP-UX.cmake
@@ -85,3 +85,12 @@ IF(NOT CMAKE_COMPILER_IS_GNUCXX)
     "rm -f `basename \"<SOURCE>\" | sed 's/\\.[^./]*$$//'`.o"
     )
 ENDIF(NOT CMAKE_COMPILER_IS_GNUCXX)
+
+# Initialize C link type selection flags.  These flags are used when
+# building a shared library, shared module, or executable that links
+# to other libraries to select whether to use the static or shared
+# versions of the libraries.
+FOREACH(type SHARED_LIBRARY SHARED_MODULE EXE)
+  SET(CMAKE_${type}_LINK_STATIC_C_FLAGS "-Wl,-a,archive")
+  SET(CMAKE_${type}_LINK_DYNAMIC_C_FLAGS "-Wl,-a,default")
+ENDFOREACH(type)