Arch Linux User Repository

The following snippet in PKGBUILD made the AC_MSG_ERROR error go away (but it's most likely not the proper fix):

prepare() {
...
export CXXFLAGS+=" -O3"
sed -i '/AC_INIT/ a m4_pattern_allow([AC_MSG_ERROR])' configure.ac
NOCONFIGURE=1 ./autogen.sh
...
}

Now the next error popping up is:

./configure: line 18458: syntax error near unexpected token `-fsanitize=$withval,'
./configure: line 18458: `      AX_CHECK_COMPILE_FLAG(-fsanitize=$withval,'

I commented out the whole sanitizer section as this AS_IF is apparently not expanded correctly and written directly into the generated configure script:

dnl ***********************************************************************
dnl GCC/Clang sanitizer support
dnl ***********************************************************************
dnl AC_ARG_WITH([sanitizer],
dnl            [AS_HELP_STRING([--with-sanitizer=@<:@address/undefined/no@:>@],
dnl                            [Use specific GCC/Clang analyzer])],
dnl            [with_sanitizer=$withval],
dnl            [with_sanitizer=no])
dnl AS_IF([test "x$with_sanitizer" != "xno"],[
dnl     AX_CHECK_COMPILE_FLAG([-fsanitize=$withval],
dnl                           [CFLAGS="$CFLAGS -fsanitize=$withval"
dnl                            CXXFLAGS="$CXXFLAGS -fsanitize=$withval"],
dnl                           [AC_MSG_ERROR([-fsanitize=$withval is not supported])])
dnl        AX_APPEND_COMPILE_FLAGS([-fno-omit-frame-pointer])
dnl        AC_LANG_PUSH(C++)
dnl        AX_APPEND_COMPILE_FLAGS([-fno-omit-frame-pointer])
dnl        AC_LANG_POP
dnl])

and the next section:

dnl ***************************************************************
dnl Excessive warnings
dnl ***************************************************************
dnl AC_LANG_PUSH(C++)
dnl AX_CHECK_COMPILE_FLAG([-Werror=unknown-warning-option], [
dnl     ax_compiler_flags_test="-Werror=unknown-warning-option"
dnl], [
dnl     ax_compiler_flags_test=""
dnl])
dnl XXX enable these
dnl -Wformat-nonliteral
...
dnl ], [], [$ax_compiler_flags_test])

(sanitizers and warnings are useful for developers and maintainers, not when building the software, so I don't think I broke something..)

Maybe a incompatible or old version of https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html is causing the problem.

Confirmed, but I do not have a fix for this. And it is not the same issue as in march, that one was fixed.

I'm trying to build this in a clean chroot using

makechrootpkg -c -r $CHROOT

but I'm getting the same error @Rhinoceros told you about in March 2017:

==> Starting build()...
libtoolize: putting auxiliary files in '.'.
libtoolize: copying file './ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
libtoolize: copying file 'm4/libtool.m4'
libtoolize: copying file 'm4/ltoptions.m4'
libtoolize: copying file 'm4/ltsugar.m4'
libtoolize: copying file 'm4/ltversion.m4'
libtoolize: copying file 'm4/lt~obsolete.m4'
configure.ac:58: error: possibly undefined macro: AC_MSG_ERROR
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.
autoreconf: /usr/bin/autoconf failed with exit status: 1
Skipping configure process.
configure: error: cannot find install-sh, install.sh, or shtool in "." "./.." "./../.."
==> ERROR: A failure occurred in build().
Aborting...

Yes it is fixed. The repos' update to gcc 7 needs another fix. Please re-checkout.

@haawda It should be fixed in 35439.

This package currently does not build. I opened a bug report upstream.
https://bugzilla.abisource.com/show_bug.cgi?id=13858

Also, for the record, IMO you shouldn't be bumping VCS packages with every update either.

This fails to build, with the following error. I've built it fine previously (35397-1).

configure.ac:58: error: possibly undefined macro: AC_MSG_ERROR
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.
autoreconf: /usr/bin/autoconf failed with exit status: 1
Skipping configure process.
configure: error: cannot find install-sh, install.sh, or shtool in "." "./.." "./../.."

I think you should replace the './autogen.sh' line to 'NOCONFIGURE=1 ./autogen.sh' to avoid configuring twice