# Build failure for release-1.7 branch on Ubuntu 21.10

**URL:** <https://discourse.julialang.org/t/build-failure-for-release-1-7-branch-on-ubuntu-21-10/70160>\
**Category:** Tooling\
**Created:** [October 21, 2021, 3:06pm UTC](https://discourse.julialang.org/t/build-failure-for-release-1-7-branch-on-ubuntu-21-10/70160 "2021-10-21T15:06:06Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![dmbates](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dmbates/32/44_2.png) [@dmbates](https://discourse.julialang.org/u/dmbates)\
**Post date:** [October 21, 2021, 3:06pm UTC](https://discourse.julialang.org/t/build-failure-for-release-1-7-branch-on-ubuntu-21-10/70160/1 "2021-10-21T15:06:06Z")

</div>

I recently updated to Ubuntu 21.10 which uses gcc version 11.2.0. I noticed that the VERSION in the release-1.7 branch of the Julia sources has been changed to 1.7.0-rc2 and tried to compile it. I am consistently encountering an error of the form

```julia
$ make
    CC src/task.o
In file included from /usr/include/signal.h:328,
                 from /home/bates/git/release-1.7/src/task.c:31:
/home/bates/git/release-1.7/src/task.c:70:29: error: missing binary operator before token "("
   70 | #if defined(MINSIGSTKSZ) && MINSIGSTKSZ > 131072
      | ^ ~~~~~~~~~~
make[1]: *** [Makefile:169: task.o] Error 1
make: *** [Makefile:76: julia-src-release] Error 2

```

I am able to compile the master branch of the Julia sources using this gcc.

I looked for an issue on this but didn’t see one.