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snappy
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Building with `-Werror` only with clang. 

gcc was unable to inline a function call, which caused a build
failure due to `-Wall -Werror`.

The build error was:

```
../snappy.cc:292:76: error: ignoring attributes on template argument ‘__m128i’ [-Werror=ignored-attributes]
  292 | static inline std::pair<__m128i /* pattern */, __m128i /* reshuffle_mask */>
      |                                                                            ^
../snappy.cc:292:76: error: ignoring attributes on template argument ‘__m128i’ [-Werror=ignored-attributes]
cc1plus: all warnings being treated as errors
```
This commit is contained in:
Chris Mumford 2020-12-15 11:02:17 -08:00
parent 42d1dd7ea3
commit 955a5dd1b3
1 changed files with 7 additions and 4 deletions
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5
CMakeLists.txt
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@ -66,10 +66,13 @@ else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wextra")
endif(NOT CMAKE_CXX_FLAGS MATCHES "-Wextra")
# Use -Werror for clang and gcc.
# Use -Werror for clang only.
# There are many clang compiler ID's, but only one gcc.
if(NOT CMAKE_CXX_COMPILER_ID STREQUAL "GCC")
if(NOT CMAKE_CXX_FLAGS MATCHES "-Werror")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
endif(NOT CMAKE_CXX_FLAGS MATCHES "-Werror")
endif(CMAKE_CXX_COMPILER_ID STREQUAL "GCC")
# Disable C++ exceptions.
string(REGEX REPLACE "-fexceptions" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")