tce-load -i compiletc pcaudiolib-dev

https://github.com/espeak-ng/espeak-ng/releases/download/1.50/espeak-ng-1.50.tgz

cd espeak-ng-1.49.0

CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --localstatedir=/var --disable-static

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make [0m 16.66s]
sudo make install

    Configuration for eSpeak NG complete.

        Source code location:          .

        C99 Compiler:                  gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe
        C99 Compiler flags:            -Wunused-parameter -Wunused -Wuninitialized -Wreturn-type -Wmissing-prototypes -Wimplicit -g -O2 -std=c99

        Sonic:                         no
        PCAudioLib:                    yes

        gradle (Android):              gradle
        ndk-build (Android):           

        Klatt:                         yes
        MBROLA:                        yes
        Async:                         yes

        Extended Dictionaries:
            Russian:                   no
            Chinese (Mandarin):        no
            Chinese (Cantonese):       no