1*4882a593SmuzhiyunFrom 695965c27be74acb5968f19d51af86065c4b71a9 Mon Sep 17 00:00:00 2001 2*4882a593SmuzhiyunFrom: Hongxu Jia <hongxu.jia@windriver.com> 3*4882a593SmuzhiyunDate: Mon, 13 May 2019 09:48:14 +0800 4*4882a593SmuzhiyunSubject: [PATCH] support musl 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun... 7*4882a593Smuzhiyun|./lib/math.h:2877:1: error: 'int signbit(float)' conflicts with a previous declaration 8*4882a593Smuzhiyun| _GL_MATH_CXX_REAL_FLOATING_DECL_2 (signbit) 9*4882a593Smuzhiyun| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 10*4882a593Smuzhiyun|In file included from recipe-sysroot/usr/include/c++/8.3.0/math.h:36, 11*4882a593Smuzhiyun| from ./lib/math.h:27, 12*4882a593Smuzhiyun| from ./src/include/driver.h:27, 13*4882a593Smuzhiyun| from src/devices/grodvi/dvi.cpp:20: 14*4882a593Smuzhiyun|recipe-sysroot/usr/include/c++/8.3.0/cmath:661:3: note: previous declaration 'constexpr bool std::signbit(float)' 15*4882a593Smuzhiyun| signbit(float __x) 16*4882a593Smuzhiyun| ^~~~~~~ 17*4882a593Smuzhiyun... 18*4882a593Smuzhiyun 19*4882a593SmuzhiyunUpstream-Status: Backport [http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=commit;h=453ff940449bbbde9ec00f0bbf82a359c5598fc7] 20*4882a593Smuzhiyun 21*4882a593SmuzhiyunSigned-off-by: Hongxu Jia <hongxu.jia@windriver.com> 22*4882a593Smuzhiyun--- 23*4882a593Smuzhiyun gnulib_m4/signbit.m4 | 2 ++ 24*4882a593Smuzhiyun 1 file changed, 2 insertions(+) 25*4882a593Smuzhiyun 26*4882a593Smuzhiyundiff --git a/gnulib_m4/signbit.m4 b/gnulib_m4/signbit.m4 27*4882a593Smuzhiyunindex 9e7884d..8b9c70c 100644 28*4882a593Smuzhiyun--- a/gnulib_m4/signbit.m4 29*4882a593Smuzhiyun+++ b/gnulib_m4/signbit.m4 30*4882a593Smuzhiyun@@ -31,6 +31,8 @@ AC_DEFUN([gl_SIGNBIT], 31*4882a593Smuzhiyun [case "$host_os" in 32*4882a593Smuzhiyun # Guess yes on glibc systems. 33*4882a593Smuzhiyun *-gnu* | gnu*) gl_cv_func_signbit="guessing yes" ;; 34*4882a593Smuzhiyun+ # Guess yes on musl systems. 35*4882a593Smuzhiyun+ *-musl*) gl_cv_func_signbit="guessing yes" ;; 36*4882a593Smuzhiyun # Guess yes on native Windows. 37*4882a593Smuzhiyun mingw*) gl_cv_func_signbit="guessing yes" ;; 38*4882a593Smuzhiyun # If we don't know, assume the worst. 39*4882a593Smuzhiyun-- 40*4882a593Smuzhiyun2.7.4 41*4882a593Smuzhiyun 42