From: Roy Marples <roy@marples.name>
Date: Sat, 18 Jul 2009 11:31:56 +0000 (+0000)
Subject: Test for getifaddrs support.
X-Git-Tag: v5.1.0~31
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b4d060d86df8be419d6f03fda2de3b0950b31297;p=thirdparty%2Fdhcpcd.git

Test for getifaddrs support.
---

diff --git a/configure b/configure
index b3a24238..b6ac9395 100755
--- a/configure
+++ b/configure
@@ -120,6 +120,24 @@ if [ -e "$LDELF" ]; then
 	echo "LDFLAGS+=	-Wl,-dynamic-linker=$LDELF" >>$CONFIG_MK
 fi
 
+# We require the libc to support non standard functions, like getifaddrs
+printf "Testing for getifaddrs support ... "
+cat <<EOF >_getifaddrs.c
+#include <sys/types.h>
+#include <ifaddrs.h>
+int main(void) {
+	struct ifaddrs *ifap;
+	return getifaddrs(&ifap);
+}
+EOF
+if $CC _getifaddrs.c -o _getifaddrs 2>/dev/null; then
+	echo "yes"
+else
+	echo "no"
+	echo "libc support for getifaddrs is required - aborting" >&2
+	exit 1
+fi
+
 printf "Testing for arc4random support ... "
 cat <<EOF >_arc4random.c
 #include <stdlib.h>