From 5bb4432b8c194620c28a45a069de1b3dad692ac9 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Sat, 28 Dec 2019 11:24:12 +0100
Subject: [PATCH] meson.build: fix static build with libidn2

libidn2 can optionnaly depends on libunistring so use dependency
function instead of cc.find_library ro retrieve this dependency and
avoid the following build failure when building statically:

FAILED: ping
/home/buildroot/autobuild/run/instance-1/output-1/host/bin/arm-linux-gcc  -o ping 'ping@exe/ping.c.o' 'ping@exe/ping_common.c.o' 'ping@exe/ping6_common.c.o' -Wl,--as-needed -Wl,--no-undefined -Wl,-O1 -static -Wl,--start-group libcommon.a -lm -lcap -lidn2 /home/buildroot/autobuild/run/instance-1/output-1/host/usr/bin/../arm-buildroot-linux-uclibcgnueabi/sysroot/usr/lib/libssl.a /home/buildroot/autobuild/run/instance-1/output-1/host/usr/bin/../arm-buildroot-linux-uclibcgnueabi/sysroot/usr/lib/libz.a /home/buildroot/autobuild/run/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabi/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabi/lib/libatomic.a -lpthread /home/buildroot/autobuild/run/instance-1/output-1/host/usr/bin/../arm-buildroot-linux-uclibcgnueabi/sysroot/usr/lib/libcrypto.a -lresolv -Wl,--end-group '-Wl,-rpath,$ORIGIN/' -Wl,-rpath-link,/home/buildroot/autobuild/run/instance-1/output-1/build/iputils-20190709/build/
/home/buildroot/autobuild/run/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabi/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabi/bin/ld: /home/buildroot/autobuild/run/instance-1/output-1/host/arm-buildroot-linux-uclibcgnueabi/sysroot/usr/lib/libidn2.a(lookup.o): in function `idn2_lookup_u8':
lookup.c:(.text+0x7c): undefined reference to `u8_strlen'

Fixes:
 - http://autobuild.buildroot.org/results/82d4738711a009959436fa419bd78c7a9540d33e

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Upstream status: https://github.com/iputils/iputils/pull/245]
---
 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 53c65b2..905cb96 100644
--- a/meson.build
+++ b/meson.build
@@ -130,7 +130,7 @@ endif
 
 opt = get_option('USE_IDN')
 if opt == true
-	idn_dep = cc.find_library('idn2', required : false)
+	idn_dep = dependency('libidn2', required : false)
 	if idn_dep.found()
 		add_project_arguments('-DUSE_IDN', language : 'c')
 		conf.set('USE_IDN', 1,
-- 
2.24.0