From: Rosen Penev <rosenp@gmail.com>
Date: Thu, 27 Feb 2020 04:19:01 +0000 (-0800)
Subject: protobuf: link against libm under glibc
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ee2e3915f01eb563cd772070f89987077cb6ed36;p=feed%2Fpackages.git

protobuf: link against libm under glibc

Fixes compilation.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
---

diff --git a/libs/protobuf/Makefile b/libs/protobuf/Makefile
index 7d23a379d5..0b9bab9e87 100644
--- a/libs/protobuf/Makefile
+++ b/libs/protobuf/Makefile
@@ -81,7 +81,7 @@ CMAKE_OPTIONS += \
 	-Dprotobuf_WITH_ZLIB=ON \
 	-DBUILD_SHARED_LIBS=ON
 
-TARGET_LDFLAGS += -latomic
+TARGET_LDFLAGS += -latomic $(if $(CONFIG_USE_GLIBC),-lm)
 
 define Build/InstallDev
 	$(call Build/InstallDev/cmake,$(1))