Don't export symbols in every binary on linux.

On freebsd this makes sure that symbols are exported on the binaries that need
them. The net result is that we should get symbols in the binaries that need
them on every platform.

On linux x86-64 this reduces the size of the bin directory from 262MB to 250MB.

Patch by Stephen Checkoway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178725 91177308-0d34-0410-b5e6-96231b3b80d8

CMakeLists.txt

@@ -390,6 +390,10 @@ if( ${CMAKE_SYSTEM_NAME} MATCHES SunOS )
    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -include llvm/Support/Solaris.h")
 endif( ${CMAKE_SYSTEM_NAME} MATCHES SunOS )
 
+# Make sure we don't get -rdynamic in every binary. For those that need it,
+# use set_target_properties(target PROPERTIES ENABLE_EXPORTS 1)
+set(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "")
+
 include(AddLLVM)
 include(TableGen)
 

tools/bugpoint/CMakeLists.txt

@@ -12,3 +12,4 @@ add_llvm_tool(bugpoint
   ToolRunner.cpp
   bugpoint.cpp
   )
+set_target_properties(bugpoint PROPERTIES ENABLE_EXPORTS 1)

tools/opt/CMakeLists.txt

@@ -6,3 +6,4 @@ add_llvm_tool(opt
   PrintSCC.cpp
   opt.cpp
   )
+set_target_properties(opt PROPERTIES ENABLE_EXPORTS 1)

unittests/ExecutionEngine/JIT/CMakeLists.txt

@@ -52,6 +52,4 @@ add_llvm_unittest(JITTests
   ${JITTestsSources}
   )
 
-if(MINGW OR CYGWIN)
+set_target_properties(JITTests PROPERTIES ENABLE_EXPORTS 1)
-  set_property(TARGET JITTests PROPERTY LINK_FLAGS -Wl,--export-all-symbols)
-endif()