ccmake: Add CMAKE_USE_SYSTEM_FORM option to use libform instead of cmForm

CMakeLists.txt

@@ -57,7 +57,7 @@ macro(CMAKE_HANDLE_SYSTEM_LIBRARIES)
 
   # Allow the user to enable/disable all system utility library options by
   # defining CMAKE_USE_SYSTEM_LIBRARIES or CMAKE_USE_SYSTEM_LIBRARY_${util}.
-  set(UTILITIES BZIP2 CURL EXPAT LIBARCHIVE LIBLZMA ZLIB)
+  set(UTILITIES BZIP2 CURL EXPAT FORM LIBARCHIVE LIBLZMA ZLIB)
   foreach(util ${UTILITIES})
     if(NOT DEFINED CMAKE_USE_SYSTEM_LIBRARY_${util}
         AND DEFINED CMAKE_USE_SYSTEM_LIBRARIES)
@@ -95,6 +95,7 @@ macro(CMAKE_HANDLE_SYSTEM_LIBRARIES)
     "${CMAKE_USE_SYSTEM_LIBRARY_BZIP2}" "NOT CMAKE_USE_SYSTEM_LIBARCHIVE" ON)
   CMAKE_DEPENDENT_OPTION(CMAKE_USE_SYSTEM_LIBLZMA "Use system-installed liblzma"
     "${CMAKE_USE_SYSTEM_LIBRARY_LIBLZMA}" "NOT CMAKE_USE_SYSTEM_LIBARCHIVE" ON)
+  option(CMAKE_USE_SYSTEM_FORM "Use system-installed libform" "${CMAKE_USE_SYSTEM_LIBRARY_FORM}")
 
   # Mention to the user what system libraries are being used.
   foreach(util ${UTILITIES})
@@ -394,7 +395,11 @@ macro (CMAKE_BUILD_UTILITIES)
     set(BUILD_CursesDialog 0)
   endif ()
   if(BUILD_CursesDialog)
-    add_subdirectory(Source/CursesDialog/form)
+    if(NOT CMAKE_USE_SYSTEM_FORM)
+      add_subdirectory(Source/CursesDialog/form)
+    elseif(NOT CURSES_FORM_LIBRARY)
+      message( FATAL_ERROR "CMAKE_USE_SYSTEM_FORM in ON but CURSES_FORM_LIBRARY is not set!" )
+    endif()
   endif()
 endmacro ()
 

Source/CursesDialog/CMakeLists.txt

@@ -26,13 +26,25 @@ set( CURSES_SRCS
               CursesDialog/ccmake
    )
 
-include_directories(${CMake_SOURCE_DIR}/Source/CursesDialog/form
-                    ${CMake_BINARY_DIR}/Source/CursesDialog/form)
+if( NOT CMAKE_USE_SYSTEM_FORM )
+  include_directories(${CMake_SOURCE_DIR}/Source/CursesDialog/form
+                      ${CMake_BINARY_DIR}/Source/CursesDialog/form)
+endif()
 include_directories(${CURSES_INCLUDE_PATH})
 
 
 add_executable(ccmake ${CURSES_SRCS} )
 target_link_libraries(ccmake CMakeLib)
-target_link_libraries(ccmake cmForm)
+if(CMAKE_USE_SYSTEM_FORM)
+  target_link_libraries(ccmake
+    ${CURSES_FORM_LIBRARY}
+    ${CURSES_LIBRARY}
+  )
+  if(CURSES_EXTRA_LIBRARY)
+    target_link_libraries(ccmake ${CURSES_EXTRA_LIBRARY})
+  endif()
+else()
+  target_link_libraries(ccmake cmForm)
+endif()
 
 install(TARGETS ccmake DESTINATION bin)

Utilities/cmThirdParty.h.in

@@ -19,6 +19,7 @@
 #cmakedefine CMAKE_USE_SYSTEM_BZIP2
 #cmakedefine CMAKE_USE_SYSTEM_LIBARCHIVE
 #cmakedefine CMAKE_USE_SYSTEM_LIBLZMA
+#cmakedefine CMAKE_USE_SYSTEM_FORM
 #cmakedefine CTEST_USE_XMLRPC
 
 #endif