diff options
| -rw-r--r-- | Source/cmake.cxx | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Source/cmake.cxx b/Source/cmake.cxx index e6b1fe6..4200de8 100644 --- a/Source/cmake.cxx +++ b/Source/cmake.cxx @@ -42,6 +42,19 @@ #include <sys/resource.h> #endif + +void cmNeedBackwardsCompatibility(const std::string& variable, + int access_type, void* client_data) +{ + if (access_type == cmVariableWatch::UNKNOWN_VARIABLE_READ_ACCESS) + { + std::string message = "Error: An atttempt was made to access a variable: "; + message += variable; + message += " that has not been defined. Some variables were always defined by CMake in versions prior to 1.6. To fix this you might need to set the cache value of CMAKE_BACKWARDS_COMPATIBILITY to 1.4 or less. If you are writing a CMakeList file, (or have already set CMAKE_BACKWARDS_COMPATABILITY to 1.4 or less) then you probably need to include a CMake module to test for the feature this variable defines."; + cmSystemTools::Error(message.c_str()); + } +} + cmake::cmake() { #ifdef __APPLE__ @@ -66,6 +79,13 @@ cmake::cmake() m_VariableWatch = new cmVariableWatch; this->AddDefaultCommands(); + + m_VariableWatch->AddWatch("CMAKE_WORDS_BIGENDIAN", + cmNeedBackwardsCompatibility); + m_VariableWatch->AddWatch("CMAKE_SIZEOF_INT", + cmNeedBackwardsCompatibility); + m_VariableWatch->AddWatch("CMAKE_X_LIBS", + cmNeedBackwardsCompatibility); } cmake::~cmake() |