From 00386077e17b4a977df3a228a438453ea5cb26e9 Mon Sep 17 00:00:00 2001 From: Eric Fiselier Date: Tue, 12 May 2015 22:49:18 +0000 Subject: [PATCH] Allow the CMake option 'LLVM_ABI_BREAKING_CHECKS' to be undefined. When building libc++abi in a standalone configuration the CMake option 'LLVM_ABI_BREAKING_CHECKS` will not be defined. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237204 91177308-0d34-0410-b5e6-96231b3b80d8 --- cmake/modules/HandleLLVMOptions.cmake | 3 +++ 1 file changed, 3 insertions(+) diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake index d2b89748765..b878863b32f 100644 --- a/cmake/modules/HandleLLVMOptions.cmake +++ b/cmake/modules/HandleLLVMOptions.cmake @@ -88,6 +88,9 @@ elseif( uppercase_LLVM_ABI_BREAKING_CHECKS STREQUAL "FORCE_ON" ) set( LLVM_ENABLE_ABI_BREAKING_CHECKS 1 ) elseif( uppercase_LLVM_ABI_BREAKING_CHECKS STREQUAL "FORCE_OFF" ) # We don't need to do anything special to turn off ABI breaking checks. +elseif( NOT DEFINED LLVM_ABI_BREAKING_CHECKS ) + # Treat LLVM_ABI_BREAKING_CHECKS like "FORCE_OFF" when it has not been + # defined. else() message(FATAL_ERROR "Unknown value for LLVM_ABI_BREAKING_CHECKS: \"${LLVM_ABI_BREAKING_CHECKS}\"!") endif()