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| author | Nathan Lanza <nathan@lanza.io> | 2019-07-18 01:26:53 +0000 |
|---|---|---|
| committer | Nathan Lanza <nathan@lanza.io> | 2019-07-18 01:26:53 +0000 |
| commit | bd3e74c73d968582d36e4d60e389002540becc8c (patch) | |
| tree | 07baeea6915cd1ec4592d579d58ba7560592cd94 | |
| parent | 9cdd2152b92703bfac118f7cc0b3eb934b95cdaf (diff) | |
| download | bcm5719-llvm-bd3e74c73d968582d36e4d60e389002540becc8c.tar.gz bcm5719-llvm-bd3e74c73d968582d36e4d60e389002540becc8c.zip | |
Only build lldb-tblgen if it's not a current target
Summary:
When doing standalone builds, you could potentially be building against
an llvm which also built lldb. If this were the case, you'd be
attempting to build this target twice.
Reviewers: xiaobai
Subscribers: mgorny
Differential Revision: https://reviews.llvm.org/D64847
llvm-svn: 366394
| -rw-r--r-- | lldb/utils/TableGen/CMakeLists.txt | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/lldb/utils/TableGen/CMakeLists.txt b/lldb/utils/TableGen/CMakeLists.txt index 76e819160ea..45a5d366222 100644 --- a/lldb/utils/TableGen/CMakeLists.txt +++ b/lldb/utils/TableGen/CMakeLists.txt @@ -1,8 +1,14 @@ -set(LLVM_LINK_COMPONENTS Support) - -add_tablegen(lldb-tblgen LLDB - LLDBOptionDefEmitter.cpp - LLDBTableGen.cpp - ) -set_target_properties(lldb-tblgen PROPERTIES FOLDER "LLDB tablegenning") +# tablegen targets get exported via llvm for LLVMConfig.cmake. So standalone +# builds of lldb can potentially import this via LLVMConfig and also attempt to +# build it in tree. So only build it if it doesn't exist. +if (TARGET lldb-tblgen) + set(LLDB_TABLEGEN_EXE $<TARGET_FILE:lldb-tblgen> CACHE STRING "") +else() + set(LLVM_LINK_COMPONENTS Support) + add_tablegen(lldb-tblgen LLDB + LLDBOptionDefEmitter.cpp + LLDBTableGen.cpp + ) + set_target_properties(lldb-tblgen PROPERTIES FOLDER "LLDB tablegenning") +endif() |
