[uclibc-ng-devel] [PATCH 1/1] aarch64/sys/ucontext.h: include bits/sigcontext.h

Bernd Kuhls bernd.kuhls at t-online.de
Sun Jan 28 16:18:29 CET 2018

Fixes a buildroot build error with ffmpeg

In file included from /home/bernd/buildroot/output/host/aarch64-buildroot-linux-uclibc/sysroot/usr/include/signal.h:329:0,
                 from fftools/ffmpeg.h:26,
                 from fftools/ffmpeg_opt.c:23:
 error: field 'uc_mcontext' has incomplete type
     mcontext_t uc_mcontext;

using this defconfig:


sys/ucontext.h for other archs already include bits/sigcontext.h,
on aarch64 this is needed as well.

Signed-off-by: Bernd Kuhls <bernd.kuhls at t-online.de>
 libc/sysdeps/linux/aarch64/sys/ucontext.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libc/sysdeps/linux/aarch64/sys/ucontext.h b/libc/sysdeps/linux/aarch64/sys/ucontext.h
index d17458896..dc7303b54 100644
--- a/libc/sysdeps/linux/aarch64/sys/ucontext.h
+++ b/libc/sysdeps/linux/aarch64/sys/ucontext.h
@@ -26,6 +26,10 @@
 #include <sys/procfs.h>
+/* We need the signal context definitions even if they are not used
+   included in <signal.h>.  */
+#include <bits/sigcontext.h>
 typedef elf_greg_t greg_t;
 /* Container for all general registers.  */

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