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[NFC][cmake] Build fix in tools/llvm-config/CMakeLists.txt 

To avoid the following error message (using cmake version 3.13.4) :

```
CMake Error at tools/llvm-config/CMakeLists.txt:37 (string):
Syntax error in cmake code  when parsing string-std=[^ ]\+Invalid escape sequence \+
```

Reviewed By: mgorny

Differential Revision: https://reviews.llvm.org/D58619

llvm-svn: 369887
This commit is contained in:
Gabor Buella 2019-08-26 09:42:30 +00:00
parent d804bd17de
commit 91e2fbad3d
1 changed files with 3 additions and 3 deletions
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6
llvm/tools/llvm-config/CMakeLists.txt
View File

@ -34,9 +34,9 @@ get_property(COMPILE_FLAGS TARGET llvm-config PROPERTY COMPILE_FLAGS)
# NOTE: We don't want to start extracting any random C/CXX flags that the
# user may add that could affect the ABI. We only want to extract flags
# that have been added by the LLVM build system.
string(REGEX MATCH "-std=[^ ]\+" LLVM_CXX_STD_FLAG ${CMAKE_CXX_FLAGS})
string(REGEX MATCH "-stdlib=[^ ]\+" LLVM_CXX_STDLIB_FLAG ${CMAKE_CXX_FLAGS})
string(REGEX MATCH "-std=[^ ]\+" LLVM_C_STD_FLAG ${CMAKE_C_FLAGS})
string(REGEX MATCH "-std=[^ ]+" LLVM_CXX_STD_FLAG ${CMAKE_CXX_FLAGS})
string(REGEX MATCH "-stdlib=[^ ]+" LLVM_CXX_STDLIB_FLAG ${CMAKE_CXX_FLAGS})
string(REGEX MATCH "-std=[^ ]+" LLVM_C_STD_FLAG ${CMAKE_C_FLAGS})
# Use configure_file to create BuildVariables.inc.
set(LLVM_SRC_ROOT ${LLVM_MAIN_SRC_DIR})