Ports: Replace manually linking SDL2_mixer with a libtool patch

Ports/SDL2_mixer/package.sh

@@ -15,6 +15,8 @@ configure() {
         --with-sdl-prefix="${SERENITY_INSTALL_ROOT}/usr/local" \
         --enable-music-opus=false \
         --enable-music-opus-shared=false \
+        --disable-static \
+        --enable-shared \
         EXTRA_LDFLAGS="-lgui -lgfx -lipc -lcore -lcompression"
 }
 
@@ -25,9 +27,3 @@ post_configure() {
 build() {
     run make -k
 }
-
-install() {
-    run make -k DESTDIR="${SERENITY_INSTALL_ROOT}" install
-    ${CC} -shared -o ${SERENITY_INSTALL_ROOT}/usr/local/lib/libSDL2_mixer.so -Wl,-soname,libSDL2_mixer.so -Wl,--whole-archive ${SERENITY_INSTALL_ROOT}/usr/local/lib/libSDL2_mixer.a -Wl,--no-whole-archive -Wl,--no-as-needed -lvorbis -lvorbisfile
-    rm -f ${SERENITY_INSTALL_ROOT}/usr/local/lib/libSDL2_mixer.la
-}

Ports/SDL2_mixer/patches/0001-Skip-building-the-playmus-and-playwav-utilities.patch

@@ -1,7 +1,7 @@
-From a8e2b31abe3f56f21b4835af00620ce29ce6becb Mon Sep 17 00:00:00 2001
+From 45c3472482141099e7a14fa67c159b0dcd4164da Mon Sep 17 00:00:00 2001
 From: Andreas Kling <kling@serenityos.org>
 Date: Mon, 8 Mar 2021 13:15:35 +0100
-Subject: [PATCH] Skip building the playmus and playwav utilities
+Subject: [PATCH 1/2] Skip building the playmus and playwav utilities
 
 ---
  Makefile.in | 14 ++------------

Ports/SDL2_mixer/patches/0002-libtool-Enable-shared-library-support-for-SerenityOS.patch

@@ -0,0 +1,76 @@
+From 2bc8e2c1b321c59ef39c7dbe95871f0f08d1d139 Mon Sep 17 00:00:00 2001
+From: Tim Schumacher <timschumi@gmx.de>
+Date: Sun, 29 May 2022 15:01:28 +0200
+Subject: [PATCH 2/2] libtool: Enable shared library support for SerenityOS
+
+For some odd reason, libtool handles the configuration for shared
+libraries entirely statically and in its configure script. If no
+shared library support is "present", building shared libraries is
+disabled entirely.
+
+Fix that by just adding the appropriate configuration options for
+`serenity`. This allows us to finally create dynamic libraries
+automatically using libtool, without having to manually link the
+static library into a shared library.
+---
+ configure | 23 +++++++++++++++++++++++
+ 1 file changed, 23 insertions(+)
+
+diff --git a/configure b/configure
+index 4df0be5..9a5f606 100755
+--- a/configure
++++ b/configure
+@@ -4480,6 +4480,10 @@ sysv4 | sysv4.3*)
+ tpf*)
+   lt_cv_deplibs_check_method=pass_all
+   ;;
++
++serenity*)
++  lt_cv_deplibs_check_method=pass_all
++  ;;
+ esac
+ 
+ fi
+@@ -7268,6 +7272,10 @@ $as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+       lt_prog_compiler_static='-Bstatic'
+       ;;
+ 
++    serenity*)
++      lt_prog_compiler_can_build_shared=yes
++      ;;
++
+     *)
+       lt_prog_compiler_can_build_shared=no
+       ;;
+@@ -8504,6 +8512,10 @@ rm -f core conftest.err conftest.$ac_objext \
+       hardcode_shlibpath_var=no
+       ;;
+ 
++    serenity*)
++      ld_shlibs=yes
++      ;;
++
+     *)
+       ld_shlibs=no
+       ;;
+@@ -9406,6 +9418,17 @@ uts4*)
+   shlibpath_var=LD_LIBRARY_PATH
+   ;;
+ 
++serenity*)
++  version_type=linux
++  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}'
++  shlibpath_var=LD_LIBRARY_PATH
++  shlibpath_overrides_runpath=no
++  dynamic_linker='SerenityOS LibELF'
++  ;;
++
+ *)
+   dynamic_linker=no
+   ;;
+-- 
+2.36.1
+

Ports/SDL2_mixer/patches/ReadMe.md

@@ -5,3 +5,17 @@
 Skip building the playmus and playwav utilities
 
 
+## `0002-libtool-Enable-shared-library-support-for-SerenityOS.patch`
+
+libtool: Enable shared library support for SerenityOS
+
+For some odd reason, libtool handles the configuration for shared
+libraries entirely statically and in its configure script. If no
+shared library support is "present", building shared libraries is
+disabled entirely.
+
+Fix that by just adding the appropriate configuration options for
+`serenity`. This allows us to finally create dynamic libraries
+automatically using libtool, without having to manually link the
+static library into a shared library.
+