Build fails due glibc >glibc-2.33 (Ubuntu 21), Testing solutions

[deividAlfa]

It no longer builds, fresh install:

>>> host-m4 1.4.18 Building
Making all in .
Making all in examples
Making all in lib
  GEN      alloca.h
  GEN      configmake.h
  GEN      arg-nonnull.h
  GEN      warn-on-use.h
  GEN      c++defs.h
  GEN      limits.h
  GEN      unused-parameter.h
  GEN      sys/types.h
  GEN      fcntl.h
  GEN      langinfo.h
  GEN      locale.h
  GEN      spawn.h
  GEN      signal.h
  GEN      stdio.h
  GEN      stdlib.h
  GEN      math.h
  GEN      string.h
  GEN      sys/stat.h
  GEN      sys/time.h
  GEN      time.h
  GEN      wchar.h
  GEN      unistd.h
  GEN      wctype.h
  GEN      sys/wait.h
  CC       gl_avltree_oset.o
  CC       binary-io.o
  CC       c-ctype.o
  CC       c-stack.o
  CC       c-strcasecmp.o
  CC       c-strncasecmp.o
  CC       cloexec.o
  CC       clean-temp.o
  CC       close-stream.o
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
      |                          ^~~~~~~~
  CC       closein.o
  CC       closeout.o
c-stack.c:134:8: error: variably modified 'buffer' at file scope
  134 |   char buffer[SIGSTKSZ];
      |        ^~~~~~
make[5]: *** [Makefile:1915: c-stack.o] Error 1

It seems glibc library changed in 2021 causing a lot of issues like this, this, this and so on.

Here they talk about this ubuntu patch for m4 1.4.18 (debian\patches\04-fix-sigstksz.patch):

[deividAlfa]

Updated m4:

m4.mk

M4_VERSION = 1.4.19

m4.hash

sha256	63aede5c6d33b6d9b13511cd0be2cac046f2e70fd0a07aa9573a04a82783af96	m4-1.4.19.tar.xz
sha256	3972dc9744f6499f0f9b2dbf76696f2ae7ad8af9b23dde66d6af86c9dfb36986	COPYING

Updated fakeroot (also fails due glibc):

fakeroot.mk

FAKEROOT_VERSION = 1.28
FAKEROOT_SOURCE = fakeroot_$(FAKEROOT_VERSION).orig.tar.gz
FAKEROOT_SITE = http://ftp.debian.org/debian/pool/main/f/fakeroot/

fakeroot.hash

sha256	56d405e36ff685f83879be08fdd654255ab9aa38632b4605a98e896ad63990c2	fakeroot_1.28.orig.tar.gz
sha256	fc82ca8b6fdb18d4e3e85cfd8ab58d1bcd3f1b29abe782895abd91d64763f8e7	COPYING

Updated autoconf (Needed by newer fakeroot):

autoconf.mk

AUTOCONF_VERSION = 2.71

autoconf.hash

sha256	f14c83cfebcc9427f2c3cea7258bd90df972d92eb26752da4ddad81c87a0faa4  autoconf-2.71.tar.xz
sha256	3972dc9744f6499f0f9b2dbf76696f2ae7ad8af9b23dde66d6af86c9dfb36986  COPYINGv3
sha256	1f1cde9fb68b9b3cff18c420894bec5bd4defacd700b7d13df54a887301e5350  COPYING.EXCEPTION

Still failing...

[deividAlfa]

For now, don't update to Ubuntu 21.
Ubuntu LTS 20.04.4 has glibc-2.3.1, building works.

[Dadigno]

Same issue for me after fresh install. Using Ubuntu 22.10, glibc = 2.36

[deividAlfa]

Use older version and it'll be fine.
Debian 10, Ubuntu 20...