Set the minimal stack size with msvc when using cmake >= 2.8.11.

This makes sure we get the same behavior with all supported cmake versions. Once
we support only versions >= 2.8.11 we can experiment with other values or just
setting it for some binaries.

Patch by Greg Bedwell.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191372 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ef8906c..3218e84 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,6 +22,15 @@ if ( LLVM_USE_FOLDERS )
   set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 endif()
 
+if(MSVC AND NOT (${CMAKE_VERSION} VERSION_LESS 2.8.11))
+  # set stack reserved size to ~10MB
+  # CMake previously automatically set this value for MSVC builds, but the
+  # behavior was changed in CMake 2.8.11 (Issue 12437) to use the MSVC default
+  # value (1 MB) which is not enough for us in tasks such as parsing recursive
+  # C++ templates in Clang.
+  set(CMAKE_CXX_STACK_SIZE "10000000")
+endif()
+
 include(VersionFromVCS)
 
 option(LLVM_APPEND_VC_REV