Error when installing espeak-ng (and its solution)

[unilight]

This is not an error related to this toolkit but rather to espeak-ng.
I am using a Linux-based OS.
In 00_install.sh, espeak-ng is installed by compiling the source code downloaded from the repo (version 1.51).
When executing make, the following error will appear.

Makefile:2417: *** missing separator.  Stop.

According to this issue: espeak-ng/espeak-ng#1035 (comment), this error can be solved by changing line 2417 to this:

docs_MARKDOWN = $(wildcard docs/*.md docs/*/*.md docs/*/*/*.md)

and then execute the proceeding commands (starting from make).

In the original espeak-ng, this error is probably solved but not reflected in the 1.51 package.
I guess in 00_install.sh, we can do the replacement before make, but I am unsure whether it's only me having this error.

[pchampio]

Hello,

What is your make version ( make --version) ?
Your make bin might be too old, I'll sumbit a PR to add make to the conda req so that we are all on the same version.