Ubuntu 21.10 fails to compile OpenWrt 21.02 hosts tools (m4)

[Josef Schlehofer]

Hi,

There are already two pull requests, which fixes this issue.

Reference:

[1] https://github.com/openwrt/openwrt/pull/4675 (21.02)

[2] https://github.com/openwrt/openwrt/pull/4674 (19.07)

Regards,

Josef

On 18. 10. 21 16:54, Hannu Nyman wrote:
> I updated my buildhost to Ubuntu 21.10 and noticed that while it
> compiles master ok, the OpenWrt 21.02 build fails already at the tools
> build stage.
>
> m4 is the failing tool.  Error log below.
>
>
> I noticed that Rosen has recently updated m4 in master to 1.4.19, so I
> tested cherry-picking the 1.4.19 version update to openwrt-21.02, and
> it helps. m4 again compiles  ;-)
>
> Apparently the m4 version 1.4.19 in master contains some fixes for
> host gcc 11, or something similar?
>
>
>
> make[6]: Entering directory
> '/Openwrt/r7800-2102/build_dir/host/m4-1.4.18/lib'
> depbase=`echo gl_avltree_oset.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> gcc  -I.   -I/Openwrt/r7800-2102/staging_dir/host/include   -O2
> -I/Openwrt/r7800-2102/staging_dir/host/include  -MT gl_avltree_oset.o
> -MD -MP -MF $depbase.Tpo -c -o gl_avltree_oset.o gl_avltree_oset.c &&\
> mv -f $depbase.Tpo $depbase.Po
> depbase=`echo binary-io.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> gcc  -I.   -I/Openwrt/r7800-2102/staging_dir/host/include   -O2
> -I/Openwrt/r7800-2102/staging_dir/host/include  -MT binary-io.o -MD
> -MP -MF $depbase.Tpo -c -o binary-io.o binary-io.c &&\
> mv -f $depbase.Tpo $depbase.Po
> depbase=`echo c-ctype.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> gcc  -I.   -I/Openwrt/r7800-2102/staging_dir/host/include   -O2
> -I/Openwrt/r7800-2102/staging_dir/host/include  -MT c-ctype.o -MD -MP
> -MF $depbase.Tpo -c -o c-ctype.o c-ctype.c &&\
> mv -f $depbase.Tpo $depbase.Po
> depbase=`echo c-stack.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
> gcc  -I.   -I/Openwrt/r7800-2102/staging_dir/host/include   -O2
> -I/Openwrt/r7800-2102/staging_dir/host/include  -MT c-stack.o -MD -MP
> -MF $depbase.Tpo -c -o c-stack.o c-stack.c &&\
> mv -f $depbase.Tpo $depbase.Po
> In file included from /usr/include/signal.h:328,
>                  from ./signal.h:52,
>                  from c-stack.c:49:
> c-stack.c:55:26: error: missing binary operator before token "("
>    55 | #elif HAVE_LIBSIGSEGV && SIGSTKSZ < 16384
>       |                          ^~~~~~~~
> make[6]: *** [Makefile:1910: c-stack.o] Error 1
> make[6]: Leaving directory
> '/Openwrt/r7800-2102/build_dir/host/m4-1.4.18/lib'
> make[5]: *** [Makefile:1674: all] Error 2


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