curl: fix ipv6 detection compile error in configure script

pkgs/tools/networking/curl/configure-ipv6-autodetect.diff

@@ -0,0 +1,46 @@
+diff --git a/configure b/configure
+index 04d1de1..5de1b41 100755
+--- a/configure
++++ b/configure
+@@ -24949,15 +24949,12 @@ else $as_nop
+ # include <netinet/in6.h>
+ #endif
+ #endif
+-#include <stdlib.h> /* for exit() */
+-main()
++
++int main(void)
+ {
+  struct sockaddr_in6 s;
+  (void)s;
+- if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
+-   exit(1);
+- else
+-   exit(0);
++ return socket(AF_INET6, SOCK_STREAM, 0) < 0;
+ }
+
+
+diff --git a/configure.ac b/configure.ac
+index 2d71c83..bd38dd9 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -1679,15 +1679,12 @@ AS_HELP_STRING([--disable-ipv6],[Disable IPv6 support]),
+ # include <netinet/in6.h>
+ #endif
+ #endif
+-#include <stdlib.h> /* for exit() */
+-main()
++
++int main(void)
+ {
+  struct sockaddr_in6 s;
+  (void)s;
+- if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
+-   exit(1);
+- else
+-   exit(0);
++ return socket(AF_INET6, SOCK_STREAM, 0) < 0;
+ }
+ ]])
+ ],

pkgs/tools/networking/curl/default.nix

@@ -57,6 +57,12 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-FsYqnErw9wPSi9pte783ukcFWtNBTXDexj4uYzbyqC0=";
   };
 
+  patches = [
+    # fix ipv6 autodetect compile error in configure script
+    # remove once https://github.com/curl/curl/pull/12607 released (8.6.0)
+    ./configure-ipv6-autodetect.diff
+  ];
+
   outputs = [ "bin" "dev" "out" "man" "devdoc" ];
   separateDebugInfo = stdenv.isLinux;