tar -xf 3.3.tar.gz
tar -xf mbrola_3.3+dfsg.orig.tar.gz
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|https://github.com/numediart/MBROLA/pull/22
|
|commit d4220958edd70354dbe47958394adf5d9a246117
|Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
|Date:   Sun Jun 14 23:42:44 2020 +0200
|
|    Fix spurious exit on speech interruption by espeakup
|    
|    espeak sends SIGUSR1 to make mbrola flush its output. Handling that signal
|    however makes fgets return EINTR, as expected on System V systems.
|    readline_InputFile thus has to loop over in that case. Otherwise it
|    would erroneously think an error or EOF occurred and exit.
|
|diff --git a/Parser/input_file.c b/Parser/input_file.c
|index 2fa5371..dbc1bb4 100644
|--- a/Parser/input_file.c
|+++ b/Parser/input_file.c
--------------------------
patching file Parser/input_file.c
Using Plan A...
Hunk #1 succeeded at 33.
done
[WARNING] This document format requires a nonempty <title> element.
  Please specify either 'title' or 'pagetitle' in the metadata,
  e.g. by using --metadata pagetitle="..." on the command line.
  Falling back to 'README'
cp: impossible d'évaluer 'documentation301.html': Aucun fichier ou dossier de ce type
cp: impossible d'évaluer '*.gif': Aucun fichier ou dossier de ce type
/usr/bin/texi2dvi: cannot read ./doc2.tex, skipping.
cp: impossible d'évaluer 'doc2.tex': Aucun fichier ou dossier de ce type
if [ ! -d Bin/Standalone ]; then \
mkdir Bin ; mkdir Bin/LibOneChannel; mkdir Bin/LibMultiChannel ; mkdir Bin/Standalone ; mkdir Bin/Standalone/Standalone ; mkdir Bin/Standalone/Parser ;	mkdir Bin/Standalone/Engine ;	mkdir Bin/Standalone/Database ;	mkdir Bin/Standalone/Misc; \
fi
gcc -ansi -pedantic -O2 -fPIC -DLITTLE_ENDIAN -O6 -IParser -IStandalone -IMisc -ILibOneChannel -ILibMultiChannel -IEngine -IDatabase -Wall -DROMDATABASE_STORE -DROMDATABASE_INIT -DSIGNAL  -o Bin/Standalone/Standalone/synth.o -c Standalone/synth.c
gcc -ansi -pedantic -O2 -fPIC -DLITTLE_ENDIAN -O6 -IParser -IStandalone -IMisc -ILibOneChannel -ILibMultiChannel -IEngine -IDatabase -Wall -DROMDATABASE_STORE -DROMDATABASE_INIT -DSIGNAL  -o Bin/Standalone/Engine/mbrola.o -c Engine/mbrola.c
gcc -ansi -pedantic -O2 -fPIC -DLITTLE_ENDIAN -O6 -IParser -IStandalone -IMisc -ILibOneChannel -ILibMultiChannel -IEngine -IDatabase -Wall -DROMDATABASE_STORE -DROMDATABASE_INIT -DSIGNAL  -o Bin/Standalone/Engine/diphone.o -c Engine/diphone.c
gcc -ansi -pedantic -O2 -fPIC -DLITTLE_ENDIAN -O6 -IParser -IStandalone -IMisc -ILibOneChannel -ILibMultiChannel -IEngine -IDatabase -Wall -DROMDATABASE_STORE -DROMDATABASE_INIT -DSIGNAL  -o Bin/Standalone/Parser/phone.o -c Parser/phone.c
gcc -ansi -pedantic -O2 -fPIC -DLITTLE_ENDIAN -O6 -IParser -IStandalone -IMisc -ILibOneChannel -ILibMultiChannel -IEngine -IDatabase -Wall -DROMDATABASE_STORE -DROMDATABASE_INIT -DSIGNAL  -o Bin/Standalone/Parser/parser_input.o -c Parser/parser_input.c
gcc -ansi -pedantic -O2 -fPIC -DLITTLE_ENDIAN -O6 -IParser -IStandalone -IMisc -ILibOneChannel -ILibMultiChannel -IEngine -IDatabase -Wall -DROMDATABASE_STORE -DROMDATABASE_INIT -DSIGNAL  -o Bin/Standalone/Parser/input_file.o -c Parser/input_file.c
Parser/input_file.c: Dans la fonction ‘readline_InputFile’:
Parser/input_file.c:40:24: erreur : ‘errno’ undeclared (first use in this function)
  while (ret == NULL && errno == EINTR);
                        ^
Parser/input_file.c:40:24: note : each undeclared identifier is reported only once for each function it appears in
Parser/input_file.c:40:33: erreur : ‘EINTR’ undeclared (first use in this function)
  while (ret == NULL && errno == EINTR);
                                 ^
Makefile:150 : la recette pour la cible « Bin/Standalone/Parser/input_file.o » a échouée
make: *** [Bin/Standalone/Parser/input_file.o] Erreur 1
cp: impossible d'évaluer 'Bin/mbrola': Aucun fichier ou dossier de ce type
build() failed.