This patch was borrowed from Debian's package:
https://salsa.debian.org/multimedia-team/ableton-link/-/blob/9c65141bf5bba0872811c179af77ac95770352cc/debian/patches/DEBIAN_system_libraries.patch
Description: Drop dependencies on included 3rd-party libs
 upstream includes git-submodules for Catch and ASIO (not found in the tarball).
 on Debian we want to use the system provided libraries.
Author: IOhannes m zmölnig
Origin: Debian
Forwarded: not-needed
Last-Update: 2016-10-26
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
--- ableton-link.orig/cmake_include/AsioStandaloneConfig.cmake
+++ ableton-link/cmake_include/AsioStandaloneConfig.cmake
@@ -1,6 +1,2 @@
 add_library(AsioStandalone::AsioStandalone IMPORTED INTERFACE)
 
-set_property(TARGET AsioStandalone::AsioStandalone APPEND PROPERTY
-  INTERFACE_INCLUDE_DIRECTORIES
-  ${CMAKE_CURRENT_LIST_DIR}/../modules/asio-standalone/asio/include
-)
--- ableton-link.orig/cmake_include/CatchConfig.cmake
+++ ableton-link/cmake_include/CatchConfig.cmake
@@ -1,6 +1,2 @@
 add_library(Catch::Catch IMPORTED INTERFACE)
 
-set_property(TARGET Catch::Catch APPEND PROPERTY
-  INTERFACE_INCLUDE_DIRECTORIES
-  ${CMAKE_SOURCE_DIR}/third_party/catch
-)
ges/gdb.scm?id=255668baa70610ea151e37fb6320cabad4626e04'>tree</a><a href='/guix/commit/gnu/packages/gdb.scm?id=255668baa70610ea151e37fb6320cabad4626e04'>commit</a><a href='/guix/diff/gnu/packages/gdb.scm?id=255668baa70610ea151e37fb6320cabad4626e04'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/gdb.scm'>
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<div class='path'>path: <a href='/guix/log/?id=255668baa70610ea151e37fb6320cabad4626e04'>root</a>/<a href='/guix/log/gnu?id=255668baa70610ea151e37fb6320cabad4626e04'>gnu</a>/<a href='/guix/log/gnu/packages?id=255668baa70610ea151e37fb6320cabad4626e04'>packages</a>/<a href='/guix/log/gnu/packages/gdb.scm?id=255668baa70610ea151e37fb6320cabad4626e04'>gdb.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/gdb.scm?id=255668baa70610ea151e37fb6320cabad4626e04&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-06-27 11:13:23 +0200'>2020-06-27</span></td><td><a href='/guix/commit/gnu/packages/gdb.scm?id=27bcf151d1bbf1eab0da82d441c5b39fc58d2c79'>gnu: gdb-minimal: Include guile.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/gdb.scm (gdb-minimal): Do not remove guile, as it is a cheap
and very useful dependency.
</span></span></td><td>Jan (janneke) Nieuwenhuizen</td></tr>
<tr><td><span title='2020-06-27 10:03:06 +0200'>2020-06-27</span></td><td><a href='/guix/commit/gnu/packages/gdb.scm?id=88dbef3b9868a565da1eba37c9d409cce972becc'>gnu: gdb-minimal: Inherit replacements from GDB.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/gdb.scm (gdb-minimal): Use PACKAGE/INHERIT instead of INHERIT.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-06-27 10:02:01 +0200'>2020-06-27</span></td><td><a href='/guix/commit/gnu/packages/gdb.scm?id=a81b8dfeb5a882e27e3df873e3e68ea16b1f9458'>gnu: gdb@8.2: Do not inherit replacements from 'gdb'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/gdb.scm (gdb-8.2): Use INHERIT instead of PACKAGE/INHERIT.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-06-27 10:01:09 +0200'>2020-06-27</span></td><td><a href='/guix/commit/gnu/packages/gdb.scm?id=361541d4a51b343694f9f14f150d3c6612490687'>gnu: gdb: Apply cross-build fix without changing the native variant.</a><span class='msg-avail'>...<span class='msg-tooltip'>Commit 76129cd3edb1eb62778344de0b1b44365f82ee06 accidentally changed the gdb
derivation, causing too many rebuilds for the 'master' branch.

* gnu/packages/gdb.scm (gdb-9.1)[arguments]: Only apply cross-build fix when
cross-compiling.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-06-27 00:58:44 +0200'>2020-06-27</span></td><td><a href='/guix/commit/gnu/packages/gdb.scm?id=35691bf5dc69e4d482b31fab63e3bd73ffece755'>gnu: Add gdb-minimal.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/gdb.scm (gdb-minimal): New variable.
</span></span></td><td>Jan (janneke) Nieuwenhuizen</td></tr>
<tr><td><span title='2020-06-26 23:31:02 +0200'>2020-06-26</span></td><td><a href='/guix/commit/gnu/packages/gdb.scm?id=76129cd3edb1eb62778344de0b1b44365f82ee06'>gnu: gdb: Add support for the Hurd.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/gdb.scm (gdb-9.1)[native-inputs]: When compiling for the Hurd,
add required build dependency mig.
["arguments"]: Add "binutils" fall-back lookup in native-inputs for
cross-builds.
* gnu/packages/patches/gdb-hurd.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/gdb.scm (gdb-9.2): Use it.
</span></span></td><td>Jan (janneke) Nieuwenhuizen</td></tr>
<tr><td><span title='2020-05-29 23:36:38 +0200'>2020-05-29</span></td><td><a href='/guix/commit/gnu/packages/gdb.scm?id=fe6d003908fd8278de65761bc550240c520ef9f4'>Merge branch 'master' into staging</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-05-28 01:02:35 +0200'>2020-05-28</span></td><td><a href='/guix/commit/gnu/packages/gdb.scm?id=060e44b14fbf424f1c72fe0cb4978b9827b9e833'>gnu: gdb: Add version 9.2.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/gdb.scm (gdb-9.2): New variable.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-05-26 22:30:51 +0200'>2020-05-26</span></td><td><a href='/guix/commit/gnu/packages/gdb.scm?id=9edb3f66fd807b096b48283debdcddccfea34bad'>Merge branch 'master' into staging</a></td><td>Marius Bakke</td></tr>