Enable installation of libc++experimental by default.
When libc++experimental was originally created it was empty and therefore there
was no reason to install it. Now that the library contains
<experimental/memory_resource> and <experimental/filesystem> there is a good
reason to install it.
Specifically this patch enables the installation whenever LIBCXX_INSTALL_LIBRARY
is true and LIBCPP_ENABLE_EXPERIMENTAL_LIBRARY is true.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@280773 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d0ed9df..da68c59 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,6 +48,7 @@
#===============================================================================
# Setup CMake Options
#===============================================================================
+include(CMakeDependentOption)
# Basic options ---------------------------------------------------------------
option(LIBCXX_ENABLE_ASSERTIONS "Enable assertions independent of build mode." ON)
@@ -65,7 +66,9 @@
option(LIBCXX_INSTALL_HEADERS "Install the libc++ headers." ON)
option(LIBCXX_INSTALL_LIBRARY "Install the libc++ library." ON)
option(LIBCXX_INSTALL_SUPPORT_HEADERS "Install libc++ support headers." ON)
-option(LIBCXX_INSTALL_EXPERIMENTAL_LIBRARY "Install libc++experimental.a" OFF)
+cmake_dependent_option(LIBCXX_INSTALL_EXPERIMENTAL_LIBRARY
+ "Install libc++experimental.a" ON
+ "LIBCXX_ENABLE_EXPERIMENTAL_LIBRARY;LIBCXX_INSTALL_LIBRARY" OFF)
set(LIBCXX_ABI_VERSION 1 CACHE STRING "ABI version of libc++.")
option(LIBCXX_ABI_UNSTABLE "Unstable ABI of libc++." OFF)
option(LIBCXX_USE_COMPILER_RT "Use compiler-rt instead of libgcc" OFF)
diff --git a/docs/BuildingLibcxx.rst b/docs/BuildingLibcxx.rst
index 219109e..5e506b8 100644
--- a/docs/BuildingLibcxx.rst
+++ b/docs/BuildingLibcxx.rst
@@ -179,7 +179,7 @@
.. option:: LIBCXX_INSTALL_EXPERIMENTAL_LIBRARY:BOOL
- **Default**: ``OFF``
+ **Default**: ``LIBCXX_ENABLE_EXPERIMENTAL_LIBRARY AND LIBCXX_INSTALL_LIBRARY``
Install libc++experimental.a alongside libc++.