Taken from Debian:
https://salsa.debian.org/multimedia-team/taopm/-/raw/master/debian/patches/01-add-missing-headers.diff

Description: Adding missing headers
Author: Tiago Bortoletto Vaz <tiago@debian.org>
Last-Update: 2013-04-17
--- a/libtao/Tao.cc
+++ b/libtao/Tao.cc
@@ -18,6 +18,7 @@
 
 #include "Tao.h"
 #include <iostream>
+#include <stdio.h>
 
 extern Tao tao;
 float &Time = tao.synthesisEngine.time;
--- a/libtao/TaoDevice.cc
+++ b/libtao/TaoDevice.cc
@@ -20,6 +20,7 @@
 #include "Tao.h"
 #include "TaoAccessPoint.h"
 #include "TaoInstrument.h"
+#include <cstring>
 
 TaoDevice::TaoDevice()
     {
--- a/libtao/TaoInstrument.cc
+++ b/libtao/TaoInstrument.cc
@@ -23,6 +23,7 @@
 //#include <sys/types.h>
 #include <iostream>
 #include <cmath>
+#include <cstring>
 
 float TaoInstrument::defaultMass=3.5;		// Set to optimum value for
                                                 // frequency response of
--- a/libtao/TaoOutput.cc
+++ b/libtao/TaoOutput.cc
@@ -24,6 +24,7 @@
 #include <fstream>
 #include "TaoOutput.h"
 #include "Tao.h"
+#include <cstring>
 
 extern Tao tao;
 
--- a/libtao/TaoPitch.cc
+++ b/libtao/TaoPitch.cc
@@ -30,6 +30,7 @@
 #include "TaoPitch.h"
 #include <iostream>
 #include <cmath>
+#include <cstring>
 
 // This class allows pitches and frequencies to be specified in a number of
 // different formats including the following:
--- a/taoparse/taoparser.yy
+++ b/taoparse/taoparser.yy
@@ -19,7 +19,8 @@
 
 #include <iostream>
 #include <sstream>
-#include <string>
+#include <cstring>
+#include <stdio.h>
 #include "taoparserdefs.h"
 
 int yyerror(char *s);
--- a/libtao/TaoGraphicsEngine.cc
+++ b/libtao/TaoGraphicsEngine.cc
@@ -27,7 +27,8 @@
 #include "TaoInstrument.h"
 #include "TaoAccessPoint.h"
 #include "TaoDevice.h"
-#include <string>
+#include <cstring>
+#include <stdio.h>
     
 extern Tao tao;
 extern void taoMasterTick();
--- a/tao2aiff/tao2aiff.cc
+++ b/tao2aiff/tao2aiff.cc
@@ -25,6 +25,8 @@
 #include <cmath>
 #include "audiofile.h"
 #include "tao2aiff.h"
+#include <cstdlib>
+#include <cstring>
 
 
 main(int argc, char **argv)
--- a/tao2wav/tao2wav.cc
+++ b/tao2wav/tao2wav.cc
@@ -25,6 +25,8 @@
 #include <cmath>
 #include "audiofile.h"
 #include "tao2wav.h"
+#include <cstdlib>
+#include <cstring>
 
 main(int argc, char **argv)
     {
uix/log/gnu/installer/proxy.scm?id=d6c394d6a177fdaf6b28f82a9dd2163633e5eeee'>proxy.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/installer/proxy.scm?id=d6c394d6a177fdaf6b28f82a9dd2163633e5eeee&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-12-11 21:37:07 +0100'>2020-12-11</span></td><td><a href='/guix/commit/gnu/installer/proxy.scm?id=8361817bf693742757b096468198626f297bb09e'>install: Discover local substitute servers.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer/substitutes.scm: New file.
* gnu/installer/newt/substitutes.scm: New file.
* gnu/local.mk (INSTALLER_MODULES): Add them.
* po/guix/POTFILES.in: Add gnu/installer/newt/substitutes.scm.
* gnu/installer/proxy.scm (with-silent-shepherd): Move to ...
* gnu/installer/utils.scm: ... here.
* gnu/installer/record.scm (&lt;installer&gt;)[substitutes-page]: New field.
* gnu/installer/newt.scm (substitutes-page): New procedure,
(newt-installer): register it.
* gnu/installer.scm (installer-steps): Add "substitutes-page" step.
* gnu/system/install.scm (%installation-services): Add avahi-service-type and
enable substitute server discover in guix-service-type.
[&lt;name-service-switch&gt;]: Set it to %mdns-host-lookup-nss.
</span></span></td><td>Mathieu Othacehe</td></tr>