uestctxq opened a new issue #288: when executing sh build.sh threw error: incomplete result type '__float128' URL: https://github.com/apache/incubator-doris/issues/288 1. OS：**CentOS 7.5** 2. gcc version : **gcc 7.3.0** 3. question: when execute `sh build.sh` then throw ： ` /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/../../../../include/c++/7.3.0/bits/std_abs.h:102:3: error: incomplete result type '__float128' in function definition abs(__float128 __x) /var/local/incubator-doris/be/src/codegen/doris_ir.cpp:19:8: note: forward declaration of '__float128' struct __float128; ` 4. solution open `incubator-doris/be/CMakeLists.txt` first in line 362 find `set(CLANG_IR_CXX_FLAGS ${CLANG_IR_CXX_FLAGS} "-std=gnu++11" "-c" "-emit-llvm" ` and change the `-std=gnu++11` to `-std=c++11` second comment 363-366 line  finally clear previous build results and execute `sh build.sh` again, then build success.
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