From 695965c27be74acb5968f19d51af86065c4b71a9 Mon Sep 17 00:00:00 2001 From: Hongxu Jia Date: Mon, 13 May 2019 09:48:14 +0800 Subject: [PATCH] support musl ... |./lib/math.h:2877:1: error: 'int signbit(float)' conflicts with a previous declaration | _GL_MATH_CXX_REAL_FLOATING_DECL_2 (signbit) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |In file included from recipe-sysroot/usr/include/c++/8.3.0/math.h:36, | from ./lib/math.h:27, | from ./src/include/driver.h:27, | from src/devices/grodvi/dvi.cpp:20: |recipe-sysroot/usr/include/c++/8.3.0/cmath:661:3: note: previous declaration 'constexpr bool std::signbit(float)' | signbit(float __x) | ^~~~~~~ ... Upstream-Status: Backport [http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=commit;h=453ff940449bbbde9ec00f0bbf82a359c5598fc7] Signed-off-by: Hongxu Jia --- gnulib_m4/signbit.m4 | 2 ++ 1 file changed, 2 insertions(+) diff --git a/gnulib_m4/signbit.m4 b/gnulib_m4/signbit.m4 index 9e7884d..8b9c70c 100644 --- a/gnulib_m4/signbit.m4 +++ b/gnulib_m4/signbit.m4 @@ -31,6 +31,8 @@ AC_DEFUN([gl_SIGNBIT], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_signbit="guessing yes" ;; + # Guess yes on musl systems. + *-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. -- 2.7.4