Merging r260703:

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r260703 | hans | 2016-02-12 11:02:39 -0800 (Fri, 12 Feb 2016) | 11 lines

[CMake] don't build libLTO when LLVM_ENABLE_PIC is OFF

When cmake is run with -DLLVM_ENABLE_PIC=OFF, build fails while
linking shared library libLTO.so, because its dependencies are built
with -fno-PIC. More details here: https://llvm.org/bugs/show_bug.cgi?id=26484.
This diff reverts r252652 (git 9fd4377),
which removed check NOT LLVM_ENABLE_PIC before disabling build for libLTO.so.

Patch by Igor Sugak!

Differential Revision: http://reviews.llvm.org/D17049
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_38@260704 91177308-0d34-0410-b5e6-96231b3b80d8

tools/CMakeLists.txt

@@ -25,7 +25,7 @@ if(NOT LLVM_USE_INTEL_JITEVENTS )
   set(LLVM_TOOL_LLVM_JITLISTENER_BUILD Off)
 endif()
 
-if(CYGWIN)
+if(CYGWIN OR NOT LLVM_ENABLE_PIC)
   set(LLVM_TOOL_LTO_BUILD Off)
   set(LLVM_TOOL_LLVM_LTO_BUILD Off)
 endif()