summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--Source/cmGlobalGenerator.cxx20
-rw-r--r--Tests/RunCMake/Configure/RemoveCache-stdout.txt1
-rw-r--r--Tests/RunCMake/Configure/RemoveCache.cmake17
-rw-r--r--Tests/RunCMake/Configure/RunCMakeTest.cmake9
4 files changed, 47 insertions, 0 deletions
diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index fa447ff..2808051 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -50,6 +50,9 @@
#include <cm_jsoncpp_writer.h>
#endif
+const std::string kCMAKE_PLATFORM_INFO_INITIALIZED =
+ "CMAKE_PLATFORM_INFO_INITIALIZED";
+
class cmInstalledFile;
bool cmTarget::StrictTargetComparison::operator()(cmTarget const* t1,
@@ -428,6 +431,23 @@ void cmGlobalGenerator::EnableLanguage(
// set the dir for parent files so they can be used by modules
mf->AddDefinition("CMAKE_PLATFORM_INFO_DIR", rootBin.c_str());
+ if (!this->CMakeInstance->GetIsInTryCompile()) {
+ // Keep a mark in the cache to indicate that we've initialized the
+ // platform information directory. If the platform information
+ // directory exists but the mark is missing then CMakeCache.txt
+ // has been removed or replaced without also removing the CMakeFiles/
+ // directory. In this case remove the platform information directory
+ // so that it will be re-initialized and the relevant information
+ // restored in the cache.
+ if (cmSystemTools::FileIsDirectory(rootBin) &&
+ !mf->IsOn(kCMAKE_PLATFORM_INFO_INITIALIZED)) {
+ cmSystemTools::RemoveADirectory(rootBin);
+ }
+ this->GetCMakeInstance()->AddCacheEntry(
+ kCMAKE_PLATFORM_INFO_INITIALIZED, "1",
+ "Platform information initialized", cmStateEnums::INTERNAL);
+ }
+
// find and make sure CMAKE_MAKE_PROGRAM is defined
if (!this->FindMakeProgram(mf)) {
return;
diff --git a/Tests/RunCMake/Configure/RemoveCache-stdout.txt b/Tests/RunCMake/Configure/RemoveCache-stdout.txt
new file mode 100644
index 0000000..73e7e5d
--- /dev/null
+++ b/Tests/RunCMake/Configure/RemoveCache-stdout.txt
@@ -0,0 +1 @@
+-- The C compiler identification is
diff --git a/Tests/RunCMake/Configure/RemoveCache.cmake b/Tests/RunCMake/Configure/RemoveCache.cmake
new file mode 100644
index 0000000..304918f
--- /dev/null
+++ b/Tests/RunCMake/Configure/RemoveCache.cmake
@@ -0,0 +1,17 @@
+enable_language(C)
+
+set(vars
+ CMAKE_EXECUTABLE_FORMAT
+ )
+
+if(CMAKE_HOST_UNIX)
+ list(APPEND vars
+ CMAKE_UNAME
+ )
+endif()
+
+foreach(v IN LISTS vars)
+ if(NOT DEFINED ${v})
+ message(SEND_ERROR "Variable '${v}' is not set!")
+ endif()
+endforeach()
diff --git a/Tests/RunCMake/Configure/RunCMakeTest.cmake b/Tests/RunCMake/Configure/RunCMakeTest.cmake
index 91adb4e..4a135be 100644
--- a/Tests/RunCMake/Configure/RunCMakeTest.cmake
+++ b/Tests/RunCMake/Configure/RunCMakeTest.cmake
@@ -24,3 +24,12 @@ file(WRITE "${depend}" "2")
run_cmake_command(RerunCMake-build2 ${CMAKE_COMMAND} --build .)
unset(RunCMake_TEST_BINARY_DIR)
unset(RunCMake_TEST_NO_CLEAN)
+
+# Use a single build tree for a few tests without cleaning.
+set(RunCMake_TEST_BINARY_DIR ${RunCMake_BINARY_DIR}/RemoveCache-build)
+set(RunCMake_TEST_NO_CLEAN 1)
+file(REMOVE_RECURSE "${RunCMake_TEST_BINARY_DIR}")
+file(MAKE_DIRECTORY "${RunCMake_TEST_BINARY_DIR}")
+run_cmake(RemoveCache)
+file(REMOVE "${RunCMake_TEST_BINARY_DIR}/CMakeCache.txt")
+run_cmake(RemoveCache)