commit b13b8046c25adf8767aeab18064c0a777933a079
author Petr Hosek <phosek@chromium.org> Tue Jul 24 23:27:51 2018 +0000
committer Petr Hosek <phosek@chromium.org> Tue Jul 24 23:27:51 2018 +0000
tree 4f3b19ccc9e4f54dd325246ccdcaa68937f80180
parent 940b92a8d45f2a24c7f94524ce136f0c1c1c5043

[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

git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@337867 91177308-0d34-0410-b5e6-96231b3b80d8

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 704402d..44265b0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -137,6 +137,12 @@
 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.")

src/CMakeLists.txt

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 5c7a4c7..937159e 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -103,8 +103,6 @@
                         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 @@
                           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 @@
                         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()