[PATCH] AC_FUNC_MALLOC: fix cross compilation to musl

This check returned yes for me on musl 1.2.3 on
aarch64-unknown-linux-musl.
---
 lib/autoconf/functions.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/autoconf/functions.m4 b/lib/autoconf/functions.m4
index ca41de8b..7b03ad6a 100644
--- a/lib/autoconf/functions.m4
+++ b/lib/autoconf/functions.m4
@@ -984,7 +984,7 @@ AC_CACHE_CHECK([for GNU libc compatible malloc], ac_cv_func_malloc_0_nonnull,
 	       [ac_cv_func_malloc_0_nonnull=no],
 	       [case "$host_os" in # ((
 		  # Guess yes on platforms where we know the result.
-		  *-gnu* | freebsd* | netbsd* | openbsd* | bitrig* \
+		  *-gnu* | *-musl* | freebsd* | netbsd* | openbsd* | bitrig* \
 		  | hpux* | solaris* | cygwin* | mingw* | windows* | msys* )
 		    ac_cv_func_malloc_0_nonnull=yes ;;
 		  # If we don't know, assume the worst.

base-commit: 02f232c67156da2d353c986fd77d408db5084f79
-- 
2.44.0