1 files changed, 44 insertions, 0 deletions
diff --git a/net-misc/jwhois/files/jwhois-4.0-avoid-implicit-declarations.patch b/net-misc/jwhois/files/jwhois-4.0-avoid-implicit-declarations.patch
new file mode 100644
index 000000000000..fca5dd4cdd38
--- /dev/null
+++ b/net-misc/jwhois/files/jwhois-4.0-avoid-implicit-declarations.patch
@@ -0,0 +1,44 @@
+From c7c344302d81a36b20d3d26a3d13367c8ed2c80d Mon Sep 17 00:00:00 2001
+From: Florian Weimer <fweimer@redhat.com>
+Date: Tue, 10 Jan 2023 12:31:03 +0100
+Subject: [PATCH 1/2] configure.in: C99 compatibility fix
+
+Avoid implicit declarations of inet_pton, exit.  Include <arpa/inet.h>
+for the glibc declaration.  Return from main instead of calling exit.
+This avoids compilation errors with future compilers.
+---
+ configure.in | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+diff --git a/configure.in b/configure.in
+index f1cdd10..678fe7d 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -119,7 +119,7 @@ AC_CHECK_LIB(inet6, main,
+ AC_CHECK_FUNCS(memcpy strtol)
+ AC_CHECK_FUNCS(strcasecmp strncasecmp getopt_long)
+ AC_HEADER_STDC([])
+-AC_CHECK_HEADERS(sys/types.h sys/socket.h netinet/in.h netdb.h sys/time.h sys/stat.h sys/fcntl.h malloc.h locale.h stdint.h inttypes.h idna.h)
++AC_CHECK_HEADERS(sys/types.h sys/socket.h netinet/in.h netdb.h sys/time.h sys/stat.h sys/fcntl.h malloc.h locale.h stdint.h inttypes.h idna.h arpa/inet.h)
+ AC_HEADER_TIME
+ 
+ 
+@@ -139,13 +139,16 @@ AC_TRY_RUN(
+ #ifdef HAVE_NETINET_IN_H
+ #include <netinet/in.h>
+ #endif
++#ifdef HAVE_ARPA_INET_H
++#include <arpa/inet.h>
++#endif
+ int main()
+   {
+     struct in6_addr addr6;
+     if (inet_pton(AF_INET6, "::1", &addr6) < 1)
+-      exit(1);
++      return 1;
+     else
+-      exit(0);
++      return 0;
+   }
+   ], [
+        AC_MSG_RESULT(yes)