ports: Add libmikmod port

ports/libmikmod/build.sh

@@ -0,0 +1,6 @@
+#!/bin/bash ../install.sh
+
+NAME='libmikmod'
+VERSION='3.3.13'
+DOWNLOAD_URL="https://sourceforge.net/projects/mikmod/files/libmikmod/$VERSION/libmikmod-$VERSION.tar.gz#9fc1799f7ea6a95c7c5882de98be85fc7d20ba0a4a6fcacae11c8c6b382bb207"
+CONFIG_SUB=('autotools/config.sub')

ports/libmikmod/patches/0001-add-shared-library-support.patch

@@ -0,0 +1,31 @@
+diff -ruN libmikmod-3.3.13/configure libmikmod-3.3.13-banan_os/configure
+--- libmikmod-3.3.13/configure	2025-04-20 04:55:10.000000000 +0300
++++ libmikmod-3.3.13-banan_os/configure	2025-11-16 03:32:52.087690874 +0200
+@@ -5962,6 +5962,10 @@
+   lt_cv_deplibs_check_method=pass_all
+   ;;
+ 
++banan_os*)
++  lt_cv_deplibs_check_method=pass_all
++  ;;
++
+ beos*)
+   lt_cv_deplibs_check_method=pass_all
+   ;;
+@@ -11733,6 +11737,16 @@
+   esac
+   ;;
+ 
++banan_os*)
++  version_type=linux # correct to gnu/linux during the next big refactor
++  need_lib_prefix=no
++  need_version=no
++  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
++  soname_spec='$libname$release$shared_ext$major'
++  dynamic_linker="$host_os DynamicLoader.so"
++  shlibpath_var=LD_LIBRARY_PATH
++  ;;
++
+ beos*)
+   library_names_spec='$libname$shared_ext'
+   dynamic_linker="$host_os ld.so"