buildroot 报错: c-stack.c:55:26: error: missing binary operator before token “(“55

解决办法From the GNU C Library 2.34 release announcement:Add _SC_MINSIGSTKSZ and _SC_SIGSTKSZ. When _DYNAMIC_STACK_SIZE_SOURCE or _GNU_SOURCE are defined, MINSIGSTKSZ and SIGSTKSZ are no longer constant o

洪大宇

8051人浏览 · 2022-03-27 09:56:17

洪大宇 · 2022-03-27 09:56:17 发布

解决办法

From the GNU C Library 2.34 release announcement:
Add _SC_MINSIGSTKSZ and _SC_SIGSTKSZ. When _DYNAMIC_STACK_SIZE_SOURCE or _GNU_SOURCE are defined, MINSIGSTKSZ and SIGSTKSZ are no longer constant on Linux. MINSIGSTKSZ is redefined to sysconf(_SC_MINSIGSTKSZ) and SIGSTKSZ is redefined to sysconf (_SC_SIGSTKSZ). This supports dynamic sized register sets for modern architectural features like Arm SVE.
A possible workaround is to configure buildroot to build host-m4 version 1.4.19 instead of 1.4.18, because it no longer uses SIGSTKSZ.