[CMake] Option to control whether shared/static library is installed

Currently it's only possible to control whether shared or static library
build of libc++, libc++abi and libunwind is enabled or disabled and
whether to install everything we've built or not. However, it'd be
useful to have more fine grained control, e.g. when static libraries are
merged together into libc++.a we don't need to install libc++abi.a and
libunwind.a. This change adds this option.

Differential Revision: https://reviews.llvm.org/D49573

llvm-svn: 337867

6 files changed, 49 insertions, 19 deletions

diff --git a/libcxx/CMakeLists.txt b/libcxx/CMakeLists.txt
index 549be42e2cb..29357b08843 100644
--- a/libcxx/CMakeLists.txt
+++ b/libcxx/CMakeLists.txt
@@ -93,6 +93,12 @@ set(LIBCXX_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}" CACHE STRING
     "Define suffix of library directory name (32/64)")
 option(LIBCXX_INSTALL_HEADERS "Install the libc++ headers." ON)
 option(LIBCXX_INSTALL_LIBRARY "Install the libc++ library." ON)
+cmake_dependent_option(LIBCXX_INSTALL_STATIC_LIBRARY
+  "Install the static libc++ library." ON
+  "LIBCXX_ENABLE_STATIC;LIBCXX_INSTALL_LIBRARY" OFF)
+cmake_dependent_option(LIBCXX_INSTALL_SHARED_LIBRARY
+  "Install the shared libc++ library." ON
+  "LIBCXX_ENABLE_SHARED;LIBCXX_INSTALL_LIBRARY" OFF)
 option(LIBCXX_INSTALL_SUPPORT_HEADERS "Install libc++ support headers." ON)
 cmake_dependent_option(LIBCXX_INSTALL_EXPERIMENTAL_LIBRARY
         "Install libc++experimental.a" ON
diff --git a/libcxx/lib/CMakeLists.txt b/libcxx/lib/CMakeLists.txt
index 5ac691a75ed..5cdf1b868f7 100644
--- a/libcxx/lib/CMakeLists.txt
+++ b/libcxx/lib/CMakeLists.txt
@@ -220,8 +220,6 @@ set_target_properties(cxx_objects
     COMPILE_FLAGS "${LIBCXX_COMPILE_FLAGS}"
 )
 
-set(LIBCXX_TARGETS)
-
 # Build the shared library.
 if (LIBCXX_ENABLE_SHARED)
   add_library(cxx_shared SHARED $<TARGET_OBJECTS:cxx_objects>)
@@ -236,7 +234,10 @@ if (LIBCXX_ENABLE_SHARED)
       VERSION       "${LIBCXX_ABI_VERSION}.0"
       SOVERSION     "${LIBCXX_ABI_VERSION}"
   )
-  list(APPEND LIBCXX_TARGETS "cxx_shared")
+  list(APPEND LIBCXX_BUILD_TARGETS "cxx_shared")
+  if (LIBCXX_INSTALL_SHARED_LIBRARY)
+    list(APPEND LIBCXX_INSTALL_TARGETS "cxx_shared")
+  endif()
   if(WIN32 AND NOT MINGW AND NOT "${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows")
     # Since we most likely do not have a mt.exe replacement, disable the
     # manifest bundling.  This allows a normal cmake invocation to pass which
@@ -256,8 +257,10 @@ if (LIBCXX_ENABLE_STATIC)
       LINK_FLAGS    "${LIBCXX_LINK_FLAGS}"
       OUTPUT_NAME   "c++"
   )
-
-  list(APPEND LIBCXX_TARGETS "cxx_static")
+  list(APPEND LIBCXX_BUILD_TARGETS "cxx_static")
+  if (LIBCXX_INSTALL_STATIC_LIBRARY)
+    list(APPEND LIBCXX_INSTALL_TARGETS "cxx_static")
+  endif()
   # Attempt to merge the libc++.a archive and the ABI library archive into one.
   if (LIBCXX_STATICALLY_LINK_ABI_IN_STATIC_LIBRARY)
     set(MERGE_ARCHIVES_SEARCH_PATHS "")
@@ -286,7 +289,7 @@ if (LIBCXX_ENABLE_STATIC)
 endif()
 
 # Add a meta-target for both libraries.
-add_custom_target(cxx DEPENDS cxx-headers ${LIBCXX_TARGETS})
+add_custom_target(cxx DEPENDS cxx-headers ${LIBCXX_BUILD_TARGETS})
 
 if (LIBCXX_ENABLE_EXPERIMENTAL_LIBRARY)
   file(GLOB LIBCXX_EXPERIMENTAL_SOURCES ../src/experimental/*.cpp)
@@ -362,7 +365,7 @@ if (LIBCXX_INSTALL_LIBRARY)
   if (LIBCXX_INSTALL_EXPERIMENTAL_LIBRARY)
     set(experimental_lib cxx_experimental)
   endif()
-  install(TARGETS ${LIBCXX_TARGETS} ${experimental_lib}
+  install(TARGETS ${LIBCXX_INSTALL_TARGETS} ${experimental_lib}
     LIBRARY DESTINATION ${LIBCXX_INSTALL_PREFIX}lib${LIBCXX_LIBDIR_SUFFIX} COMPONENT cxx
     ARCHIVE DESTINATION ${LIBCXX_INSTALL_PREFIX}lib${LIBCXX_LIBDIR_SUFFIX} COMPONENT cxx
     )
diff --git a/libcxxabi/CMakeLists.txt b/libcxxabi/CMakeLists.txt
index adfe8c6f762..764627a87dc 100644
--- a/libcxxabi/CMakeLists.txt
+++ b/libcxxabi/CMakeLists.txt
@@ -75,6 +75,13 @@ set(LIBCXXABI_GCC_TOOLCHAIN "" CACHE PATH "GCC toolchain for cross compiling.")
 set(LIBCXXABI_SYSROOT "" CACHE PATH "Sysroot for cross compiling.")
 set(LIBCXXABI_LIBCXX_LIBRARY_PATH "" CACHE PATH "The path to libc++ library.")
 
+cmake_dependent_option(LIBCXXABI_INSTALL_STATIC_LIBRARY
+  "Install the static libc++abi library." ON
+  "LIBCXXABI_ENABLE_STATIC;LIBCXXABI_INSTALL_LIBRARY" OFF)
+cmake_dependent_option(LIBCXXABI_INSTALL_SHARED_LIBRARY
+  "Install the shared libc++abi library." ON
+  "LIBCXXABI_ENABLE_SHARED;LIBCXXABI_INSTALL_LIBRARY" OFF)
+
 # Default to building a shared library so that the default options still test
 # the libc++abi that is being built. There are two problems with testing a
 # static libc++abi. In the case of a standalone build, the tests will link the
diff --git a/libcxxabi/src/CMakeLists.txt b/libcxxabi/src/CMakeLists.txt
index 98278795d70..776c5129433 100644
--- a/libcxxabi/src/CMakeLists.txt
+++ b/libcxxabi/src/CMakeLists.txt
@@ -129,8 +129,6 @@ set_target_properties(cxxabi_objects
                         POSITION_INDEPENDENT_CODE
                           ON)
 
-set(LIBCXXABI_TARGETS)
-
 # Build the shared library.
 if (LIBCXXABI_ENABLE_SHARED)
   add_library(cxxabi_shared SHARED $<TARGET_OBJECTS:cxxabi_objects>)
@@ -156,7 +154,10 @@ if (LIBCXXABI_ENABLE_SHARED)
                             "1"
                           VERSION
                             "1.0")
-  list(APPEND LIBCXXABI_TARGETS "cxxabi_shared")
+  list(APPEND LIBCXXABI_BUILD_TARGETS "cxxabi_shared")
+  if (LIBCXXABI_INSTALL_SHARED_LIBRARY)
+    list(APPEND LIBCXXABI_INSTALL_TARGETS "cxxabi_shared")
+  endif()
 endif()
 
 # Build the static library.
@@ -183,14 +184,17 @@ if (LIBCXXABI_ENABLE_STATIC)
                             "c++abi"
                           POSITION_INDEPENDENT_CODE
                             ON)
-  list(APPEND LIBCXXABI_TARGETS "cxxabi_static")
+  list(APPEND LIBCXXABI_BUILD_TARGETS "cxxabi_static")
+  if (LIBCXXABI_INSTALL_STATIC_LIBRARY)
+    list(APPEND LIBCXXABI_INSTALL_TARGETS "cxxabi_static")
+  endif()
 endif()
 
 # Add a meta-target for both libraries.
-add_custom_target(cxxabi DEPENDS ${LIBCXXABI_TARGETS})
+add_custom_target(cxxabi DEPENDS ${LIBCXXABI_BUILD_TARGETS})
 
 if (LIBCXXABI_INSTALL_LIBRARY)
-  install(TARGETS ${LIBCXXABI_TARGETS}
+  install(TARGETS ${LIBCXXABI_INSTALL_TARGETS}
     LIBRARY DESTINATION ${LIBCXXABI_INSTALL_PREFIX}lib${LIBCXXABI_LIBDIR_SUFFIX} COMPONENT cxxabi
     ARCHIVE DESTINATION ${LIBCXXABI_INSTALL_PREFIX}lib${LIBCXXABI_LIBDIR_SUFFIX} COMPONENT cxxabi
     )
diff --git a/libunwind/CMakeLists.txt b/libunwind/CMakeLists.txt
index 704402decac..44265b089b1 100644
--- a/libunwind/CMakeLists.txt
+++ b/libunwind/CMakeLists.txt
@@ -137,6 +137,12 @@ option(LIBUNWIND_INCLUDE_DOCS "Build the libunwind documentation." ${LLVM_INCLUD
 set(LIBUNWIND_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}" CACHE STRING
     "Define suffix of library directory name (32/64)")
 option(LIBUNWIND_INSTALL_LIBRARY "Install the libunwind library." ON)
+cmake_dependent_option(LIBUNWIND_INSTALL_STATIC_LIBRARY
+  "Install the static libunwind library." ON
+  "LIBUNWIND_ENABLE_STATIC;LIBUNWIND_INSTALL_LIBRARY" OFF)
+cmake_dependent_option(LIBUNWIND_INSTALL_SHARED_LIBRARY
+  "Install the shared libunwind library." ON
+  "LIBUNWIND_ENABLE_SHARED;LIBUNWIND_INSTALL_LIBRARY" OFF)
 set(LIBUNWIND_TARGET_TRIPLE "" CACHE STRING "Target triple for cross compiling.")
 set(LIBUNWIND_GCC_TOOLCHAIN "" CACHE PATH "GCC toolchain for cross compiling.")
 set(LIBUNWIND_SYSROOT "" CACHE PATH "Sysroot for cross compiling.")
diff --git a/libunwind/src/CMakeLists.txt b/libunwind/src/CMakeLists.txt
index 5c7a4c7309f..937159e2cb8 100644
--- a/libunwind/src/CMakeLists.txt
+++ b/libunwind/src/CMakeLists.txt
@@ -103,8 +103,6 @@ set_target_properties(unwind_objects
                         COMPILE_FLAGS "${LIBUNWIND_COMPILE_FLAGS}"
                         POSITION_INDEPENDENT_CODE ON)
 
-set(LIBUNWIND_TARGETS)
-
 # Build the shared library.
 if (LIBUNWIND_ENABLE_SHARED)
   add_library(unwind_shared SHARED $<TARGET_OBJECTS:unwind_objects>)
@@ -118,7 +116,10 @@ if (LIBUNWIND_ENABLE_SHARED)
                           OUTPUT_NAME   "unwind"
                           VERSION       "1.0"
                           SOVERSION     "1")
-  list(APPEND LIBUNWIND_TARGETS "unwind_shared")
+  list(APPEND LIBUNWIND_BUILD_TARGETS "unwind_shared")
+  if (LIBUNWIND_INSTALL_SHARED_LIBRARY)
+    list(APPEND LIBUNWIND_INSTALL_TARGETS "unwind_shared")
+  endif()
 endif()
 
 # Build the static library.
@@ -129,14 +130,17 @@ if (LIBUNWIND_ENABLE_STATIC)
                         PROPERTIES
                           LINK_FLAGS    "${LIBUNWIND_LINK_FLAGS}"
                           OUTPUT_NAME   "unwind")
-  list(APPEND LIBUNWIND_TARGETS "unwind_static")
+  list(APPEND LIBUNWIND_BUILD_TARGETS "unwind_static")
+  if (LIBUNWIND_INSTALL_STATIC_LIBRARY)
+    list(APPEND LIBUNWIND_INSTALL_TARGETS "unwind_static")
+  endif()
 endif()
 
 # Add a meta-target for both libraries.
-add_custom_target(unwind DEPENDS ${LIBUNWIND_TARGETS})
+add_custom_target(unwind DEPENDS ${LIBUNWIND_BUILD_TARGETS})
 
 if (LIBUNWIND_INSTALL_LIBRARY)
-  install(TARGETS ${LIBUNWIND_TARGETS}
+  install(TARGETS ${LIBUNWIND_INSTALL_TARGETS}
     LIBRARY DESTINATION ${LIBUNWIND_INSTALL_PREFIX}lib${LIBUNWIND_LIBDIR_SUFFIX} COMPONENT unwind
     ARCHIVE DESTINATION ${LIBUNWIND_INSTALL_PREFIX}lib${LIBUNWIND_LIBDIR_SUFFIX} COMPONENT unwind)
 endif()