diff -ur a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt	2019-05-24 17:58:19.693090158 -0400
+++ b/CMakeLists.txt	2019-05-24 17:57:43.349473252 -0400
@@ -375,44 +375,15 @@
 
 include(ConfigureChecks)
 
-
-## Also build external/squirrel
-
-if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/external/squirrel/CMakeLists.txt)
-  message(FATAL_ERROR "squirrel submodule is not checked out or ${CMAKE_CURRENT_SOURCE_DIR}/external/squirrel/CMakeLists.txt is missing")
-endif()
-
 set(SQUIRREL_PREFIX ${CMAKE_BINARY_DIR}/squirrel/ex)
-ExternalProject_Add(squirrel
-  SOURCE_DIR "${CMAKE_SOURCE_DIR}/external/squirrel/"
-  CMAKE_ARGS
-  -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-  -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
-  -DCMAKE_C_FLAGS=${CMAKE_C_FLAGS}
-  -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-  -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
-  -DCMAKE_INSTALL_PREFIX=${SQUIRREL_PREFIX}
-  -DINSTALL_INC_DIR=include)
-
-if(WIN32)
-  add_library(squirrel_lib SHARED IMPORTED)
-  set_target_properties(squirrel_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/bin/${CMAKE_SHARED_LIBRARY_PREFIX}squirrel${CMAKE_SHARED_LIBRARY_SUFFIX}")
-  set_target_properties(squirrel_lib PROPERTIES IMPORTED_IMPLIB "${SQUIRREL_PREFIX}/lib/squirrel${CMAKE_LINK_LIBRARY_SUFFIX}")
-  add_library(sqstdlib_lib SHARED IMPORTED)
-  set_target_properties(sqstdlib_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/bin/${CMAKE_SHARED_LIBRARY_PREFIX}sqstdlib${CMAKE_SHARED_LIBRARY_SUFFIX}")
-  set_target_properties(sqstdlib_lib PROPERTIES IMPORTED_IMPLIB "${SQUIRREL_PREFIX}/lib/sqstdlib${CMAKE_LINK_LIBRARY_SUFFIX}")
-
-  #For debug run purposes
-  configure_file("${CMAKE_CURRENT_SOURCE_DIR}/mk/msvc/run_supertux.bat.in" "${PROJECT_BINARY_DIR}/run_supertux.bat")
-else()
-  add_library(squirrel_lib STATIC IMPORTED)
-  set_target_properties(squirrel_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}squirrel_static${CMAKE_STATIC_LIBRARY_SUFFIX}")
-  add_library(sqstdlib_lib STATIC IMPORTED)
-  set_target_properties(sqstdlib_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}sqstdlib_static${CMAKE_STATIC_LIBRARY_SUFFIX}")
-endif()
 
 include_directories(SYSTEM ${SQUIRREL_PREFIX}/include)
 
+add_library(squirrel_lib SHARED IMPORTED)
+set_target_properties(squirrel_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/lib/${CMAKE_SHARED_LIBRARY_PREFIX}squirrel${CMAKE_SHARED_LIBRARY_SUFFIX}")
+add_library(sqstdlib_lib SHARED IMPORTED)
+set_target_properties(sqstdlib_lib PROPERTIES IMPORTED_LOCATION "${SQUIRREL_PREFIX}/lib/${CMAKE_SHARED_LIBRARY_PREFIX}sqstdlib${CMAKE_SHARED_LIBRARY_SUFFIX}")
+
 ## Also build external/tinygettext
 
 if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/external/tinygettext/CMakeLists.txt)
/markup.scm?id=f443f5b0cd77cbbfa70cd915b4082ce32340127e'>gnu: Add perl-text-markdown.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/markup.scm (perl-text-markdown): New variable.

Change-Id: Ibeaa8d3959e4ddea15650c97f5ca598c3cc8c60a
</span></span></td><td>Janneke Nieuwenhuizen</td></tr>
<tr><td><span title='2024-04-16 22:20:40 +0100'>2024-04-16</span></td><td><a href='/guix/commit/gnu/packages/markup.scm?id=6a6dde505888bb1aff84bb02480f94312ac2989f'>gnu: Add latexml.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/markup.scm (latexml): New variable.

Reviewed-by: Steve George &lt;steve@futurile.net&gt;

Change-Id: If7199a8b74b990ad29718adcb905a5ed31882cf5
Signed-off-by: Christopher Baines &lt;mail@cbaines.net&gt;
</span></span></td><td>Nicolas Graves via Guix-patches via</td></tr>
<tr><td><span title='2024-03-31 07:37:17 -0300'>2024-03-31</span></td><td><a href='/guix/commit/gnu/packages/markup.scm?id=43ed834127efb86282856e0e3940735de94bee39'>gnu: python-mistletoe: Update to 1.3.0.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/markup.scm (python-mistletoe): Update to 1.3.0.
[build-system]: Use pyproject-build-system.
[arguments]: Do not override the check phase, skip one test in #:test-flags.
[native-inputs]: Add python-parameterized, python-pytest.

Change-Id: If25e3cbe19d8936d150c830f1b8f4ce8f8cb5692
</span></span></td><td>Vinicius Monego</td></tr>
<tr><td><span title='2024-03-09 11:30:23 +0800'>2024-03-09</span></td><td><a href='/guix/commit/gnu/packages/markup.scm?id=3db5702e0b6dd6bf8966a26745efcd62a07df84a'>gnu: cmark: Update to 0.31.0.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/markup.scm (cmark): Update to 0.31.0.

Change-Id: Ie9890dec34400e2c4b11f20e2dc67aa5dc111574
Signed-off-by: 宋文武 &lt;iyzsong@member.fsf.org&gt;
</span></span></td><td>Skylar Chan</td></tr>