Ports/fontconfig: Import the libtool patch

This previously went unnoticed because `fontconfig` was never linked
into a shared library manually.

Ports/fontconfig/package.sh

@@ -6,7 +6,14 @@ use_fresh_config_sub="true"
 depends=("libxml2" "freetype")
 files="https://www.freedesktop.org/software/fontconfig/release/fontconfig-${version}.tar.xz fontconfig-${version}.tar.xz dcbeb84c9c74bbfdb133d535fe1c7bedc9f2221a8daf3914b984c44c520e9bac"
 auth_type="sha256"
-configopts=("--prefix=/usr/local" "--enable-libxml2" "LDFLAGS=-ldl -lxml2")
+configopts=(
+    "--with-sysroot=${SERENITY_INSTALL_ROOT}"
+    "--prefix=/usr/local"
+    "--disable-static"
+    "--enable-shared"
+    "--enable-libxml2"
+    "LDFLAGS=-ldl -lxml2"
+)
 
 export CFLAGS="-I${SERENITY_INSTALL_ROOT}/usr/local/include/libxml2"
 export LIBXML2_CFLAGS="-I${SERENITY_INSTALL_ROOT}/usr/local/include/libxml2/"

Ports/fontconfig/patches/0003-libtool-Enable-shared-library-support-for-SerenityOS.patch

@@ -0,0 +1,73 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Tim Schumacher <timschumi@gmx.de>
+Date: Sun, 29 May 2022 15:01:28 +0200
+Subject: [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.
+---
+ configure | 23 +++++++++++++++++++++++
+ 1 file changed, 23 insertions(+)
+
+diff --git a/configure b/configure
+index cd2e462..23e9943 100755
+--- a/configure
++++ b/configure
+@@ -7525,6 +7525,10 @@ tpf*)
+ os2*)
+   lt_cv_deplibs_check_method=pass_all
+   ;;
++
++serenity*)
++  lt_cv_deplibs_check_method=pass_all
++  ;;
+ esac
+ 
+ fi
+@@ -10990,6 +10994,10 @@ lt_prog_compiler_static=
+       lt_prog_compiler_static='-Bstatic'
+       ;;
+ 
++    serenity*)
++      lt_prog_compiler_can_build_shared=yes
++      ;;
++
+     *)
+       lt_prog_compiler_can_build_shared=no
+       ;;
+@@ -12520,6 +12528,10 @@ printf "%s\n" "$lt_cv_irix_exported_symbol" >&6; }
+       hardcode_shlibpath_var=no
+       ;;
+ 
++    serenity*)
++      ld_shlibs=yes
++      ;;
++
+     *)
+       ld_shlibs=no
+       ;;
+@@ -13595,6 +13607,17 @@ uts4*)
+   shlibpath_var=LD_LIBRARY_PATH
+   ;;
+ 
++serenity*)
++  version_type=linux
++  need_lib_prefix=no
++  need_version=no
++  library_names_spec='${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
+   ;;

Ports/fontconfig/patches/ReadMe.md

@@ -10,3 +10,17 @@ Stub out FcRandom()
 Manually link against lxml2 and ldl
 
 
+## `0003-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.
+