Develop fix gettext (#150)

Signed-off-by: Duncan Ragsdale <88173870+Thistleman@users.noreply.github.com>

Author: Thistleman

setup/darwin_20.sh

@@ -51,7 +51,7 @@ INSTALL "$PYTHON_EXEC" -m pip install --upgrade pip || error "pip update failed"
 INSTALL brew install autoconf libffi zlib pkg-config xz gdbm tcl-tk
 
 # install required tools
-INSTALL brew install automake libtool gnu-sed gawk
+INSTALL brew install automake libtool gnu-sed gawk gettext
 
 clang -v >/dev/null || error "you have not installed clang. Use 'xcode-select --install' to install command line build tools."