From 6ea832d09415cd82b744d0cf168cdd728c43df47 Mon Sep 17 00:00:00 2001 From: Mark Corbin Date: Thu, 22 Nov 2018 12:19:11 +0000 Subject: [PATCH] gcc: define _REENTRANT for RISC-V when -pthread is passed The detection of pthread support fails on RISC-V unless _REENTRANT is defined. Added the CPP_SPEC definition from gcc 8.1.0 to correct this. Signed-off-by: Mark Corbin Signed-off-by: Romain Naour --- gcc/config/riscv/linux.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h index 4b2f7b6e1fd..b00d23ddfa0 100644 --- a/gcc/config/riscv/linux.h +++ b/gcc/config/riscv/linux.h @@ -47,6 +47,8 @@ along with GCC; see the file COPYING3. If not see #define ICACHE_FLUSH_FUNC "__riscv_flush_icache" +#define CPP_SPEC "%{pthread:-D_REENTRANT}" + #define LINK_SPEC "\ -melf" XLEN_SPEC "lriscv \ %{shared} \ -- 2.19.1