ea9f8b7746
Building compiler-rt with aarch64-buildroot-linux-gnu-gcc 15.2 causes a build error: ``` compiler-rt-22.1.0/cmake/Modules/../../libc/src/__support/CPP/type_traits/is_complex.h:44:31: error: 'cfloat128' was not declared in this scope; did you mean 'float128'? [-Wtemplate-body] ``` According to https://gcc.gnu.org/onlinedocs/gcc-15.2.0/gcc/Floating-Types.html __float128 is not available on aarch64. Analyzing the gcc defines for aarch64 seems to prove it: ``` $ aarch64-buildroot-linux-gnu-gcc -v Target: aarch64-buildroot-linux-gnu gcc version 15.2.0 (Buildroot 2026.02-114-gdadec9da56) $ echo | aarch64-buildroot-linux-gnu-gcc -dM -E - | grep __GCC_IEC_559_COMPLEX #define __GCC_IEC_559_COMPLEX 2 $ echo | aarch64-buildroot-linux-gnu-gcc -dM -E - | grep __STDC_IEC_60559_COMPLEX__ #define __STDC_IEC_60559_COMPLEX__ 201404L $ echo | aarch64-buildroot-linux-gnu-gcc -dM -E - | grep -i float128 $ ``` In contrast gcc for x86_64: ``` $ x86_64-buildroot-linux-gnu-gcc -v Target: x86_64-buildroot-linux-gnu gcc version 15.2.0 (Buildroot 2026.02-112-gd12ac02486) $ echo | x86_64-buildroot-linux-gnu-gcc -dM -E - | grep __GCC_IEC_559_COMPLEX #define __GCC_IEC_559_COMPLEX 2 $ echo | x86_64-buildroot-linux-gnu-gcc -dM -E - | grep __STDC_IEC_60559_COMPLEX__ #define __STDC_IEC_60559_COMPLEX__ 201404L $ echo | x86_64-buildroot-linux-gnu-gcc -dM -E - | grep -i float128 #define __SIZEOF_FLOAT128__ 16 ``` This patch changes the or-condition to an and-condition for \_\_STDC_IEC_60559_COMPLEX\_\_ and \_\_SIZEOF_FLOAT128\_\_. Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
LLVM libc ========= This directory and its subdirectories contain source code for llvm-libc, a retargetable implementation of the C standard library. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.