Ports: Add gnupg port

Author: https://github.com/gunnarbeutner
Commit: https://github.com/SerenityOS/serenity/commit/0a600a3c36f
Pull-request: https://github.com/SerenityOS/serenity/pull/6307
Reviewed-by: https://github.com/awesomekling

Ports/AvailablePorts.md

@@ -33,6 +33,7 @@ Please make sure to keep this list up to date when adding and updating ports. :^
 | [`git`](git/)                  | Git                                           | 2.26.0            | https://git-scm.com/                                  |
 | [`gmp`](gmp/)                  | GNU Multiple Precision Arithmetic Library     | 6.2.1             | https://gmplib.org/                                   |
 | [`gnucobol`](gnucobol/)        | GnuCOBOL                                      | 3.1.2             | https://gnucobol.sourceforge.io/                      |
+| [`gnupg`](gnupg/)              | GnuPG                                         | 2.3.0             | https://gnupg.org/software/index.html                 |
 | [`gnuplot`](gnuplot/)          | Gnuplot                                       | 5.2.8             | http://www.gnuplot.info/                              |
 | [`grep`](grep/)                | GNU Grep                                      | 2.5.4             | https://www.gnu.org/software/grep/                    |
 | [`hatari`](hatari/)            | Atari ST/STE/TT/Falcon emulator               | 2.4.0-devel       | https://hatari.tuxfamily.org/                         |

Ports/gnupg/package.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env -S bash ../.port_include.sh
+port=gnupg
+version=2.3.0
+useconfigure=true
+configopts="--with-libgpg-error-prefix=${SERENITY_BUILD_DIR}/Root/usr/local \
+  --with-libgcrypt-prefix=${SERENITY_BUILD_DIR}/Root/usr/local \
+  --with-libassuan-prefix=${SERENITY_BUILD_DIR}/Root/usr/local \
+  --with-ntbtls-prefix=${SERENITY_BUILD_DIR}/Root/usr/local \
+  --with-npth-prefix=${SERENITY_BUILD_DIR}/Root/usr/local \
+  --disable-dirmngr"
+files="https://gnupg.org/ftp/gcrypt/gnupg/gnupg-${version}.tar.bz2 gnupg-${version}.tar.bz2"
+depends="libiconv libgpg-error libgcrypt libassuan npth ntbtls"
+
+pre_configure() {
+    export GPGRT_CONFIG="${SERENITY_BUILD_DIR}/Root/usr/local/bin/gpgrt-config"
+    export CFLAGS="-L${SERENITY_BUILD_DIR}/Root/usr/local/include"
+    export LDFLAGS="-L${SERENITY_BUILD_DIR}/Root/usr/local/lib -lm -liconv"
+}
+
+configure() {
+    run ./configure --host="${SERENITY_ARCH}-pc-serenity" --build="$($workdir/build-aux/config.guess)" $configopts
+}

Ports/gnupg/patches/configure.patch

@@ -0,0 +1,12 @@
+diff -Naur gnupg-2.3.0/build-aux/config.sub gnupg-2.3.0.serenity/build-aux/config.sub
+--- gnupg-2.3.0/build-aux/config.sub	2017-03-17 09:34:37.000000000 +0100
++++ gnupg-2.3.0.serenity/build-aux/config.sub	2021-04-14 01:12:00.264606451 +0200
+@@ -1381,7 +1381,7 @@
+ 	# The portable systems comes first.
+ 	# Each alternative MUST END IN A *, to match a version number.
+ 	# -sysv* is not here because it comes later, after sysvr4.
+-	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
++	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* | -serenity* \
+ 	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
+ 	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
+ 	      | -sym* | -kopensolaris* | -plan9* \