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Diffstat (limited to 'src/grep/m4/musl.m4')
| -rw-r--r-- | src/grep/m4/musl.m4 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/grep/m4/musl.m4 b/src/grep/m4/musl.m4 new file mode 100644 index 0000000..60bd62a --- /dev/null +++ b/src/grep/m4/musl.m4 @@ -0,0 +1,18 @@ +# musl.m4 serial 3 +dnl Copyright (C) 2019-2021 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Test for musl libc, despite the musl libc authors don't like it +# <https://wiki.musl-libc.org/faq.html> +# <https://lists.gnu.org/archive/html/bug-gnulib/2018-02/msg00079.html>. +# From Bruno Haible. + +AC_DEFUN_ONCE([gl_MUSL_LIBC], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + *-musl*) AC_DEFINE([MUSL_LIBC], [1], [Define to 1 on musl libc.]) ;; + esac +]) |