Factor per-config sample targets out of 'Testing' test

Put the source files, build rules, and test scripts for these targets
under Tests/PerConfig and refer to it from Tests/Testing as a
subdirectory.  The targets and scripts will be useful in other tests.

Tests/PerConfig/CMakeLists.txt

@@ -0,0 +1,33 @@
+project(PerConfig C)
+
+# Targets with per-configuration names.
+ADD_LIBRARY(pcStatic STATIC pcStatic.c)
+SET_PROPERTY(TARGET pcStatic PROPERTY RELEASE_POSTFIX -opt)
+SET_PROPERTY(TARGET pcStatic PROPERTY DEBUG_POSTFIX -dbg)
+ADD_LIBRARY(pcShared SHARED pcShared.c)
+SET_PROPERTY(TARGET pcShared PROPERTY RELEASE_POSTFIX -opt)
+SET_PROPERTY(TARGET pcShared PROPERTY DEBUG_POSTFIX -dbg)
+SET_PROPERTY(TARGET pcShared PROPERTY VERSION 1.2)
+SET_PROPERTY(TARGET pcShared PROPERTY SOVERSION 3)
+IF(NOT WIN32)
+  SET(soname_file -DpcShared_soname_file=$<TARGET_SONAME_FILE:pcShared>)
+ENDIF()
+ADD_EXECUTABLE(perconfig perconfig.c)
+TARGET_LINK_LIBRARIES(perconfig pcStatic pcShared)
+SET_PROPERTY(TARGET perconfig PROPERTY RELEASE_POSTFIX -opt)
+SET_PROPERTY(TARGET perconfig PROPERTY DEBUG_POSTFIX -dbg)
+
+SET(PerConfig_COMMAND
+  ${CMAKE_COMMAND}
+    -Dconfiguration=$<CONFIGURATION>
+    -Dperconfig_file_dir=$<TARGET_FILE_DIR:perconfig>
+    -Dperconfig_file_name=$<TARGET_FILE_NAME:perconfig>
+    -Dperconfig_file=$<TARGET_FILE:perconfig>
+    -DpcStatic_file=$<TARGET_FILE:pcStatic>
+    -DpcStatic_linker_file=$<TARGET_LINKER_FILE:pcStatic>
+    -DpcShared_file=$<TARGET_FILE:pcShared>
+    -DpcShared_linker_file=$<TARGET_LINKER_FILE:pcShared>
+    ${soname_file}
+    -P ${PerConfig_SOURCE_DIR}/perconfig.cmake
+    )
+SET(PerConfig_COMMAND "${PerConfig_COMMAND}" PARENT_SCOPE)

Tests/Testing/CMakeLists.txt

@@ -53,35 +53,7 @@ ADD_TEST(testing.1 ${Testing_BINARY_DIR}/bin/testing)
 #
 ADD_SUBDIRECTORY(Sub/Sub2)
 
-# Per-config target name test.
+# Per-config target name and generator expressions.
-ADD_LIBRARY(pcStatic STATIC pcStatic.c)
+ADD_SUBDIRECTORY(${CMAKE_CURRENT_SOURCE_DIR}/../PerConfig PerConfig)
-SET_PROPERTY(TARGET pcStatic PROPERTY RELEASE_POSTFIX -opt)
-SET_PROPERTY(TARGET pcStatic PROPERTY DEBUG_POSTFIX -dbg)
-ADD_LIBRARY(pcShared SHARED pcShared.c)
-SET_PROPERTY(TARGET pcShared PROPERTY RELEASE_POSTFIX -opt)
-SET_PROPERTY(TARGET pcShared PROPERTY DEBUG_POSTFIX -dbg)
-SET_PROPERTY(TARGET pcShared PROPERTY VERSION 1.2)
-SET_PROPERTY(TARGET pcShared PROPERTY SOVERSION 3)
-IF(NOT WIN32)
-  SET(soname_file -DpcShared_soname_file=$<TARGET_SONAME_FILE:pcShared>)
-ENDIF()
-ADD_EXECUTABLE(perconfig perconfig.c)
-TARGET_LINK_LIBRARIES(perconfig pcStatic pcShared)
-SET_PROPERTY(TARGET perconfig PROPERTY RELEASE_POSTFIX -opt)
-SET_PROPERTY(TARGET perconfig PROPERTY DEBUG_POSTFIX -dbg)
 ADD_TEST(NAME testing.perconfig COMMAND perconfig)
-
+ADD_TEST(NAME testing.driver COMMAND ${PerConfig_COMMAND})
-# Test using a driver script with generator expressions.
-ADD_TEST(NAME testing.driver
-  COMMAND ${CMAKE_COMMAND}
-    -Dconfiguration=$<CONFIGURATION>
-    -Dperconfig_file_dir=$<TARGET_FILE_DIR:perconfig>
-    -Dperconfig_file_name=$<TARGET_FILE_NAME:perconfig>
-    -Dperconfig_file=$<TARGET_FILE:perconfig>
-    -DpcStatic_file=$<TARGET_FILE:pcStatic>
-    -DpcStatic_linker_file=$<TARGET_LINKER_FILE:pcStatic>
-    -DpcShared_file=$<TARGET_FILE:pcShared>
-    -DpcShared_linker_file=$<TARGET_LINKER_FILE:pcShared>
-    ${soname_file}
-    -P ${Testing_SOURCE_DIR}/driver.cmake
-  )