From e8644a414a9953a4f7a3b966519dee6fcf66eff0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Tue, 8 Sep 2020 20:02:31 +0200
Subject: [PATCH] meson: test if we have libcrypt_ra

We always seem to have either libcrypt_r and not the other two, or all
three. So the fallback for libcrypt_ra needs to be based on libcrypt_r.
---
 meson.build | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/meson.build b/meson.build
index ab0d7da1e96..203aa63c1a3 100644
--- a/meson.build
+++ b/meson.build
@@ -881,6 +881,16 @@ libm = cc.find_library('m')
 libdl = cc.find_library('dl')
 libcrypt = cc.find_library('crypt')
 
+crypt_header = conf.get('HAVE_CRYPT_H') == 1 ? \
+               '''#include <crypt.h>''' : '''#include <unistd.h>'''
+foreach ident : [
+        ['crypt_ra',          crypt_header]]
+
+        have = cc.has_function(ident[0], prefix : ident[1], args : '-D_GNU_SOURCE',
+                               dependencies : libcrypt)
+        conf.set10('HAVE_' + ident[0].to_upper(), have)
+endforeach
+
 libcap = dependency('libcap', required : false)
 if not libcap.found()
         # Compat with Ubuntu 14.04 which ships libcap w/o .pc file