Test failure in GNU M4 1.4.18 with musl libc

[Cody Logan]

Hello,

I'm attempting to cross-compile M4 1.4.18 with musl libc instead of
glibc. The build completes, but when I run `make check`, I get two test
failures. I'm running Arch Linux x86-64 on Linux 5.2.13 and
cross-compiling with GCC 9.2.0 (targeting x86_64-pc-linux-musl).FWIW,
the same failures occur on Alpine Linux with native GCC 8.3.0.

The full log is pasted below.

Thanks,
Cody

=========================================
   GNU M4 1.4.18: tests/test-suite.log
=========================================

# TOTAL: 170
# PASS:  148
# SKIP:  20
# XFAIL: 0
# FAIL:  2
# XPASS: 0
# ERROR: 0

.. contents:: :depth: 2

SKIP: test-btowc1.sh
====================

Skipping test: no traditional french locale is installed
SKIP test-btowc1.sh (exit status: 77)

SKIP: test-btowc2.sh
====================

Skipping test: no french Unicode locale is installed
SKIP test-btowc2.sh (exit status: 77)

SKIP: test-c-stack2.sh
======================

cannot tell stack overflow from crash; consider installing libsigsegv
SKIP test-c-stack2.sh (exit status: 77)

FAIL: test-localename
=====================

test-localename.c:183: assertion 'strcmp (name, "fr_FR.UTF-8") == 0' failed
FAIL test-localename (exit status: 134)

SKIP: test-mbrtowc1.sh
======================

Skipping test: no traditional french locale is installed
SKIP test-mbrtowc1.sh (exit status: 77)

SKIP: test-mbrtowc2.sh
======================

Skipping test: no french Unicode locale is installed
SKIP test-mbrtowc2.sh (exit status: 77)

SKIP: test-mbrtowc3.sh
======================

Skipping test: no traditional japanese locale is installed
SKIP test-mbrtowc3.sh (exit status: 77)

SKIP: test-mbrtowc4.sh
======================

Skipping test: no transitional chinese locale is installed
SKIP test-mbrtowc4.sh (exit status: 77)

FAIL: test-mbrtowc5.sh
======================

test-mbrtowc.c:106: assertion 'wc == c' failed
./test-mbrtowc5.sh: line 4: 789048 Aborted                 (core dumped)
LC_ALL=C ./test-mbrtowc${EXEEXT} 5
FAIL test-mbrtowc5.sh (exit status: 134)

SKIP: test-mbrtowc-w32-1.sh
===========================

Skipping test: not a native Windows system
SKIP test-mbrtowc-w32-1.sh (exit status: 77)

SKIP: test-mbrtowc-w32-2.sh
===========================

Skipping test: not a native Windows system
SKIP test-mbrtowc-w32-2.sh (exit status: 77)

SKIP: test-mbrtowc-w32-3.sh
===========================

Skipping test: not a native Windows system
SKIP test-mbrtowc-w32-3.sh (exit status: 77)

SKIP: test-mbrtowc-w32-4.sh
===========================

Skipping test: not a native Windows system
SKIP test-mbrtowc-w32-4.sh (exit status: 77)

SKIP: test-mbrtowc-w32-5.sh
===========================

Skipping test: not a native Windows system
SKIP test-mbrtowc-w32-5.sh (exit status: 77)

SKIP: test-mbsinit.sh
=====================

Skipping test: no french Unicode locale is installed
SKIP test-mbsinit.sh (exit status: 77)

SKIP: test-setlocale1.sh
========================

Skipping test: no locale for testing is installed
SKIP test-setlocale1.sh (exit status: 77)

SKIP: test-vc-list-files-cvs.sh
===============================

test-vc-list-files-cvs.sh: skipped test: cvs not found in PATH
SKIP test-vc-list-files-cvs.sh (exit status: 77)

SKIP: test-wcrtomb-w32-1.sh
===========================

Skipping test: not a native Windows system
SKIP test-wcrtomb-w32-1.sh (exit status: 77)

SKIP: test-wcrtomb-w32-2.sh
===========================

Skipping test: not a native Windows system
SKIP test-wcrtomb-w32-2.sh (exit status: 77)

SKIP: test-wcrtomb-w32-3.sh
===========================

Skipping test: not a native Windows system
SKIP test-wcrtomb-w32-3.sh (exit status: 77)

SKIP: test-wcrtomb-w32-4.sh
===========================

Skipping test: not a native Windows system
SKIP test-wcrtomb-w32-4.sh (exit status: 77)

SKIP: test-wcrtomb-w32-5.sh
===========================

Skipping test: not a native Windows system
SKIP test-wcrtomb-w32-5.sh (exit status: 77)

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