>>> lua 5.3.5 Downloading
--2019-01-22 08:54:38--  http://www.lua.org/ftp/lua-5.3.5.tar.gz
Resolving www.lua.org (www.lua.org)... 88.99.213.221, 2a01:4f8:10a:3edc::2
Connecting to www.lua.org (www.lua.org)|88.99.213.221|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 303543 (296K) [application/gzip]
Saving to: '/home/buildroot/autobuild/run/instance-0/output/build/.lua-5.3.5.tar.gz.92tDjO/output'

     0K .......... .......... .......... .......... .......... 16% 1.59M 0s
    50K .......... .......... .......... .......... .......... 33% 2.83M 0s
   100K .......... .......... .......... .......... .......... 50%  282M 0s
   150K .......... .......... .......... .......... .......... 67%  371M 0s
   200K .......... .......... .......... .......... .......... 84% 3.23M 0s
   250K .......... .......... .......... .......... ......    100% 92.4M=0.06s

2019-01-22 08:54:38 (4.54 MB/s) - '/home/buildroot/autobuild/run/instance-0/output/build/.lua-5.3.5.tar.gz.92tDjO/output' saved [303543/303543]

lua-5.3.5.tar.gz: OK (md5: 4f4b4f323fd3514a68e0ab3da8ce3455)
lua-5.3.5.tar.gz: OK (sha1: 112eb10ff04d1b4c9898e121d6bdf54a81482447)
>>> lua 5.3.5 Extracting
gzip -d -c /home/buildroot/autobuild/run/instance-0/dl/lua/lua-5.3.5.tar.gz | tar --strip-components=1 -C /home/buildroot/autobuild/run/instance-0/output/build/lua-5.3.5   -xf -
>>> lua 5.3.5 Patching

Applying 0001-root-path.patch using patch: 
patching file src/luaconf.h

Applying 0002-shared-libs-for-lua.patch using patch: 
patching file Makefile
patching file src/Makefile

Applying 0003-fix-revision-number.patch using patch: 
patching file Makefile
Hunk #1 succeeded at 47 with fuzz 1.

Applying 0011-linenoise.patch using patch: 
patching file src/lua.c
>>> lua 5.3.5 Configuring
>>> lua 5.3.5 Building
PATH="/home/buildroot/autobuild/run/instance-0/output/host/bin:/home/buildroot/autobuild/run/instance-0/output/host/sbin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/snap/bin" /usr/bin/make -j4 CC="/home/buildroot/autobuild/run/instance-0/output/host/bin/riscv32-buildroot-linux-gnu-gcc" RANLIB="/home/buildroot/autobuild/run/instance-0/output/host/bin/riscv32-buildroot-linux-gnu-ranlib" CFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wall -fPIC -DLUA_USE_POSIX -DLUA_COMPAT_5_2 -DLUA_USE_DLOPEN" MYLIBS="-ldl" AR="/home/buildroot/autobuild/run/instance-0/output/host/bin/riscv32-buildroot-linux-gnu-ar rcu" MYLDFLAGS="" BUILDMODE=dynamic PKG_VERSION=5.3.5 -C /home/buildroot/autobuild/run/instance-0/output/build/lua-5.3.5/src all
make[1]: Entering directory '/home/buildroot/autobuild/run/instance-0/output/build/lua-5.3.5/src'
/home/buildroot/autobuild/run/instance-0/output/host/bin/riscv32-buildroot-linux-gnu-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wall -fPIC -DLUA_USE_POSIX -DLUA_COMPAT_5_2 -DLUA_USE_DLOPEN   -c -o lapi.o lapi.c
/home/buildroot/autobuild/run/instance-0/output/host/bin/riscv32-buildroot-linux-gnu-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wall -fPIC -DLUA_USE_POSIX -DLUA_COMPAT_5_2 -DLUA_USE_DLOPEN   -c -o lcode.o lcode.c
/home/buildroot/autobuild/run/instance-0/output/host/bin/riscv32-buildroot-linux-gnu-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wall -fPIC -DLUA_USE_POSIX -DLUA_COMPAT_5_2 -DLUA_USE_DLOPEN   -c -o lctype.o lctype.c
/home/buildroot/autobuild/run/instance-0/output/host/bin/riscv32-buildroot-linux-gnu-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wall -fPIC -DLUA_USE_POSIX -DLUA_COMPAT_5_2 -DLUA_USE_DLOPEN   -c -o ldebug.o ldebug.c
In file included from /home/buildroot/autobuild/run/instance-0/output/host/riscv32-buildroot-linux-gnu/sysroot/usr/include/signal.h:302:0,
                 from lstate.h:59,
                 from lapi.h:12,
                 from lapi.c:18:
/home/buildroot/autobuild/run/instance-0/output/host/riscv32-buildroot-linux-gnu/sysroot/usr/include/sys/ucontext.h:64:5: error: unknown type name 'mcontext_t'
     mcontext_t uc_mcontext;
     ^~~~~~~~~~
In file included from /home/buildroot/autobuild/run/instance-0/output/host/riscv32-buildroot-linux-gnu/sysroot/usr/include/signal.h:302:0,
                 from lstate.h:59,
                 from lapi.h:12,
                 from ldebug.c:19:
/home/buildroot/autobuild/run/instance-0/output/host/riscv32-buildroot-linux-gnu/sysroot/usr/include/sys/ucontext.h:64:5: error: unknown type name 'mcontext_t'
     mcontext_t uc_mcontext;
     ^~~~~~~~~~
/home/buildroot/autobuild/run/instance-0/output/host/bin/riscv32-buildroot-linux-gnu-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -Wall -fPIC -DLUA_USE_POSIX -DLUA_COMPAT_5_2 -DLUA_USE_DLOPEN   -c -o ldo.o ldo.c
In file included from /home/buildroot/autobuild/run/instance-0/output/host/riscv32-buildroot-linux-gnu/sysroot/usr/include/signal.h:302:0,
                 from lstate.h:59,
                 from ldebug.h:11,
                 from lcode.c:19:
/home/buildroot/autobuild/run/instance-0/output/host/riscv32-buildroot-linux-gnu/sysroot/usr/include/sys/ucontext.h:64:5: error: unknown type name 'mcontext_t'
     mcontext_t uc_mcontext;
     ^~~~~~~~~~
<builtin>: recipe for target 'ldebug.o' failed
make[1]: *** [ldebug.o] Error 1
make[1]: *** Waiting for unfinished jobs....
<builtin>: recipe for target 'lapi.o' failed
make[1]: *** [lapi.o] Error 1
<builtin>: recipe for target 'lcode.o' failed
make[1]: *** [lcode.o] Error 1
In file included from /home/buildroot/autobuild/run/instance-0/output/host/riscv32-buildroot-linux-gnu/sysroot/usr/include/signal.h:302:0,
                 from lstate.h:59,
                 from lapi.h:12,
                 from ldo.c:19:
/home/buildroot/autobuild/run/instance-0/output/host/riscv32-buildroot-linux-gnu/sysroot/usr/include/sys/ucontext.h:64:5: error: unknown type name 'mcontext_t'
     mcontext_t uc_mcontext;
     ^~~~~~~~~~
<builtin>: recipe for target 'ldo.o' failed
make[1]: *** [ldo.o] Error 1
make[1]: Leaving directory '/home/buildroot/autobuild/run/instance-0/output/build/lua-5.3.5/src'
package/pkg-generic.mk:230: recipe for target '/home/buildroot/autobuild/run/instance-0/output/build/lua-5.3.5/.stamp_built' failed
make: *** [/home/buildroot/autobuild/run/instance-0/output/build/lua-5.3.5/.stamp_built] Error 2
make: Leaving directory '/home/buildroot/autobuild/run/instance-0/buildroot'