lynx: fix build on macos

lynx uses host C-compiler to build internal utility that is used to
generate files required for target build. On MacOS it uses internal
clang with MacOS system headers so host build fails due to MacOS is
not Linux

Forced to use OpenWrt host C compiler using --with-build-*
./configure flags

Signed-off-by: Sergey V. Lobanov <sergey@lobanov.in>

net/lynx/Makefile

@@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=lynx
 PKG_VERSION:=2.8.9rel.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_LICENSE:=GPL-2.0
 PKG_MAINTAINER:=Leonid Esman <leonid.esman@gmail.com>
@@ -41,6 +41,10 @@ endef
 
 # customize as you need
 CONFIGURE_ARGS += --with-zlib --with-ssl \
+		  --with-build-cc="$(HOSTCC)" \
+		  --with-build-cflags="$(HOST_CFLAGS)" \
+		  --with-build-cppflags="$(HOST_CPPFLAGS)" \
+		  --with-build-ldflags="$(HOST_LDFLAGS)" \
 		  --enable-ipv6 \
 		  --with-screen=ncursesw \
 		  --enable-widec \