Author: Saleem Abdulrasool
Date: 2019-10-29T08:20:58-07:00
New Revision: 55eec2ba96bd9c19ccb5d4d13cb8c88d4abcebc6

URL: 
https://github.com/llvm/llvm-project/commit/55eec2ba96bd9c19ccb5d4d13cb8c88d4abcebc6
DIFF: 
https://github.com/llvm/llvm-project/commit/55eec2ba96bd9c19ccb5d4d13cb8c88d4abcebc6.diff

LOG: build: workaround stale caches (NFC)

`LLVM_DEFAULT_TARGET_TRIPLE` is a cached variable, which means that it
may actually be unset.  Furthermore, in standalone builds, the variable
may be fully undefined.  Apply the regular expression over the empty
string in such a case.  This should improve the state of the green
dragon bot.

Added: 
    

Modified: 
    lldb/tools/debugserver/source/MacOSX/CMakeLists.txt

Removed: 
    


################################################################################
diff  --git a/lldb/tools/debugserver/source/MacOSX/CMakeLists.txt 
b/lldb/tools/debugserver/source/MacOSX/CMakeLists.txt
index 6d8e1ee449e3..59812b27dff2 100644
--- a/lldb/tools/debugserver/source/MacOSX/CMakeLists.txt
+++ b/lldb/tools/debugserver/source/MacOSX/CMakeLists.txt
@@ -10,7 +10,7 @@
 # CFLAGS etc explicitly. Switching on LLVM_HOST_TRIPLE is also an option,
 # but it breaks down when cross-compiling.
 
-string(REGEX MATCH "^[^-]*" LLDB_DEBUGSERVER_ARCH 
${LLVM_DEFAULT_TARGET_TRIPLE})
+string(REGEX MATCH "^[^-]*" LLDB_DEBUGSERVER_ARCH 
"${LLVM_DEFAULT_TARGET_TRIPLE}")
 
 if("${LLDB_DEBUGSERVER_ARCH}" MATCHES ".*arm.*")
   list(APPEND SOURCES arm/DNBArchImpl.cpp arm64/DNBArchImplARM64.cpp)


        
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