mdnsresponder: remove build timestamp to fix reproducible builds

Build timestamps prevents reproducible builds [0].

[0] https://reproducible-builds.org/docs/timestamps/

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>

net/mdnsresponder/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mDNSResponder
 PKG_VERSION:=576.30.4
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=mDNSResponder-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://opensource.apple.com/tarballs/mDNSResponder/

net/mdnsresponder/patches/120-reproducible-builds.patch

@@ -0,0 +1,52 @@
+--- a/Clients/dns-sd.c
++++ b/Clients/dns-sd.c
+@@ -1811,7 +1811,7 @@ Fail:
+ 
+ // NOT static -- otherwise the compiler may optimize it out
+ // The "@(#) " pattern is a special prefix the "what" command looks for
+-const char VersionString_SCCS[] = "@(#) dns-sd " STRINGIFY(mDNSResponderVersion) " (" __DATE__ " " __TIME__ ")";
++const char VersionString_SCCS[] = "@(#) dns-sd " STRINGIFY(mDNSResponderVersion);
+ 
+ #if _BUILDING_XCODE_PROJECT_
+ // If the process crashes, then this string will be magically included in the automatically-generated crash log
+--- a/mDNSPosix/PosixDaemon.c
++++ b/mDNSPosix/PosixDaemon.c
+@@ -289,9 +289,9 @@ asm (".desc ___crashreporter_info__, 0x1
+ 
+ // For convenience when using the "strings" command, this is the last thing in the file
+ #if mDNSResponderVersion > 1
+-mDNSexport const char mDNSResponderVersionString_SCCS[] = "@(#) mDNSResponder-" STRINGIFY(mDNSResponderVersion) " (" __DATE__ " " __TIME__ ")";
++mDNSexport const char mDNSResponderVersionString_SCCS[] = "@(#) mDNSResponder-" STRINGIFY(mDNSResponderVersion);
+ #elif MDNS_VERSIONSTR_NODTS
+ mDNSexport const char mDNSResponderVersionString_SCCS[] = "@(#) mDNSResponder (Engineering Build)";
+ #else
+-mDNSexport const char mDNSResponderVersionString_SCCS[] = "@(#) mDNSResponder (Engineering Build) (" __DATE__ " " __TIME__ ")";
++mDNSexport const char mDNSResponderVersionString_SCCS[] = "@(#) mDNSResponder (Engineering Build)";
+ #endif
+--- a/mDNSShared/Java/JNISupport.c
++++ b/mDNSShared/Java/JNISupport.c
+@@ -1069,4 +1069,4 @@ exit:
+ 
+ // NOT static -- otherwise the compiler may optimize it out
+ // The "@(#) " pattern is a special prefix the "what" command looks for
+-const char VersionString_SCCS[] = "@(#) libjdns_sd " STRINGIFY(mDNSResponderVersion) " (" __DATE__ " " __TIME__ ")";
++const char VersionString_SCCS[] = "@(#) libjdns_sd " STRINGIFY(mDNSResponderVersion);
+--- a/mDNSShared/dnsextd.c
++++ b/mDNSShared/dnsextd.c
+@@ -3141,7 +3141,7 @@ mDNS mDNSStorage;
+ 
+ // For convenience when using the "strings" command, this is the last thing in the file
+ // The "@(#) " pattern is a special prefix the "what" command looks for
+-const char mDNSResponderVersionString_SCCS[] = "@(#) dnsextd " STRINGIFY(mDNSResponderVersion) " (" __DATE__ " " __TIME__ ")";
++const char mDNSResponderVersionString_SCCS[] = "@(#) dnsextd " STRINGIFY(mDNSResponderVersion);
+ 
+ #if _BUILDING_XCODE_PROJECT_
+ // If the process crashes, then this string will be magically included in the automatically-generated crash log
+--- a/mDNSShared/dnssd_clientlib.c
++++ b/mDNSShared/dnssd_clientlib.c
+@@ -363,4 +363,4 @@ DNSServiceErrorType DNSSD_API TXTRecordG
+ 
+ // NOT static -- otherwise the compiler may optimize it out
+ // The "@(#) " pattern is a special prefix the "what" command looks for
+-const char VersionString_SCCS_libdnssd[] = "@(#) libdns_sd " STRINGIFY(mDNSResponderVersion) " (" __DATE__ " " __TIME__ ")";
++const char VersionString_SCCS_libdnssd[] = "@(#) libdns_sd " STRINGIFY(mDNSResponderVersion);