Re: While cross compiling, assume the gcc signbit support for the musl as well

[Necktwi Ozfguah]

>From 56482aa68e71f2ef17ef42163023d78b3ffd35e8 Mon Sep 17 00:00:00 2001
From: Necktwi Ozfghua <neck...@ferryfair.com>
Date: Sat, 16 Mar 2019 22:34:17 +0530
Subject: [PATCH] m4/signbit.m4: signbit support is assumed with musl

while cross building, signbit support is assumed with glibc
so should be with musl.

Signed-off-by: Necktwi Ozfghua <neck...@ferryfair.com>
---
 m4/signbit.m4 | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/m4/signbit.m4 b/m4/signbit.m4
index bf5bce594..2aefb2598 100644
--- a/m4/signbit.m4
+++ b/m4/signbit.m4
@@ -30,7 +30,9 @@ AC_DEFUN([gl_SIGNBIT],
         [gl_cv_func_signbit=no],
         [case "$host_os" in
                           # Guess yes on glibc systems.
-           *-gnu* | gnu*) gl_cv_func_signbit="guessing yes" ;;
+           *-gnu* | gnu*\
+          | *musl* |\
+          musl* | *musl) gl_cv_func_signbit="guessing yes" ;;
                           # Guess yes on native Windows.
            mingw*)        gl_cv_func_signbit="guessing yes" ;;
                           # If we don't know, assume the worst.
@@ -61,7 +63,9 @@ AC_DEFUN([gl_SIGNBIT],
         [gl_cv_func_signbit_gcc=no],
         [case "$host_os" in
                           # Guess yes on glibc systems.
-           *-gnu* | gnu*) gl_cv_func_signbit_gcc="guessing yes" ;;
+           *-gnu* | gnu*\
+          | *musl* |\
+          *musl | musl*) gl_cv_func_signbit_gcc="guessing yes" ;;
                           # Guess yes on mingw, no on MSVC.
            mingw*)        if test -n "$GCC"; then
                             gl_cv_func_signbit_gcc="guessing yes"