From b8352de5514276e7e66998744e5d9eb477076d29 Mon Sep 17 00:00:00 2001
From: Oscar Fuentes <ofv@wanadoo.es>
Date: Mon, 23 Nov 2009 00:21:43 +0000
Subject: [PATCH] CMake: generate targets for tools and examples even when
 LLVM_BUILD_TOOLS or LLVM_BUILD_EXAMPLES are OFF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89635 91177308-0d34-0410-b5e6-96231b3b80d8
---
 CMakeLists.txt              |  8 ++------
 cmake/modules/AddLLVM.cmake | 21 ++++++++++++++++-----
 docs/CMake.html             | 10 ++++++++--
 3 files changed, 26 insertions(+), 13 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 00214782ca2..a7a595a8eb2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -319,14 +319,10 @@ add_subdirectory(lib/Archive)
 add_subdirectory(projects)
 
 option(LLVM_BUILD_TOOLS "Build LLVM tool programs." ON)
-if(LLVM_BUILD_TOOLS)
-  add_subdirectory(tools)
-endif()
+add_subdirectory(tools)
 
 option(LLVM_BUILD_EXAMPLES "Build LLVM example programs." OFF)
-if(LLVM_BUILD_EXAMPLES)
-  add_subdirectory(examples)
-endif ()
+add_subdirectory(examples)
 
 install(DIRECTORY include/
   DESTINATION include
diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
index c0ce897f4f1..27ed9565117 100755
--- a/cmake/modules/AddLLVM.cmake
+++ b/cmake/modules/AddLLVM.cmake
@@ -46,7 +46,12 @@ endmacro(add_llvm_loadable_module name)
 
 macro(add_llvm_executable name)
   llvm_process_sources( ALL_FILES ${ARGN} )
-  add_executable(${name} ${ALL_FILES})
+  if( EXCLUDE_FROM_ALL )
+    add_executable(${name} EXCLUDE_FROM_ALL ${ALL_FILES})
+  else()
+    add_executable(${name} ${ALL_FILES})
+  endif()
+  set(EXCLUDE_FROM_ALL OFF)
   if( LLVM_USED_LIBS )
     foreach(lib ${LLVM_USED_LIBS})
       target_link_libraries( ${name} ${lib} )
@@ -67,17 +72,23 @@ endmacro(add_llvm_executable name)
 
 macro(add_llvm_tool name)
   set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_TOOLS_BINARY_DIR})
+  if( LLVM_BUILD_TOOLS )
+    install(TARGETS ${name} RUNTIME DESTINATION bin)
+  else()
+    set(EXCLUDE_FROM_ALL ON)
+  endif()
   add_llvm_executable(${name} ${ARGN})
-  install(TARGETS ${name}
-    RUNTIME DESTINATION bin)
 endmacro(add_llvm_tool name)
 
 
 macro(add_llvm_example name)
 #  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_EXAMPLES_BINARY_DIR})
+  if( LLVM_BUILD_EXAMPLES )
+    install(TARGETS ${name} RUNTIME DESTINATION examples)
+  else()
+    set(EXCLUDE_FROM_ALL ON)
+  endif()
   add_llvm_executable(${name} ${ARGN})
-  install(TARGETS ${name}
-    RUNTIME DESTINATION examples)
 endmacro(add_llvm_example name)
 
 
diff --git a/docs/CMake.html b/docs/CMake.html
index 190d102c832..2b7fda34477 100644
--- a/docs/CMake.html
+++ b/docs/CMake.html
@@ -251,10 +251,16 @@
     <i>-DLLVM_TARGETS_TO_BUILD="X86;PowerPC;Alpha"</i>.</dd>
 
   <dt><b>LLVM_BUILD_TOOLS</b>:BOOL</dt>
-  <dd>Build LLVM tools. Defaults to ON.</dd>
+  <dd>Build LLVM tools. Defaults to ON. Targets for building each tool
+    are generated in any case. You can build an tool separately by
+    invoking its target. For example, you can build <i>llvm-as</i>
+    with a makefile-based system executing <i>make llvm-as</i> on the
+    root of your build directory.</dd>
 
   <dt><b>LLVM_BUILD_EXAMPLES</b>:BOOL</dt>
-  <dd>Build LLVM examples. Defaults to OFF.</dd>
+  <dd>Build LLVM examples. Defaults to OFF. Targets for building each
+    example are generated in any case. See documentation
+    for <i>LLVM_BUILD_TOOLS</i> above for more details.</dd>
 
   <dt><b>LLVM_ENABLE_THREADS</b>:BOOL</dt>
   <dd>Build with threads support, if available. Defaults to ON.</dd>