Trying to install Watchman for React Native on a fresh install of Ubuntu 20.04.

I'm using the following steps (but if there's a better way of doing it - or if you can avoid using Watchman altogether I'd be interested to hear) ...

  git clone https://github.com/facebook/watchman.git -b v4.9.0 --depth 1

  cd watchman/

  git checkout 

  ./autogen.sh

  ./configure --without-python --without-pcre --enable-lenient

  make

I get the error shown below during the 'make' step.

I've seen a number of questions related to building watchman but I haven't seen this situation.

tests/integration/cppclient.cpp: In function ‘int main(int, char**)’:

tests/integration/cppclient.cpp:114:12: error: ‘TimedOut’ does not name a type

  114 |    } catch(TimedOut& e) {

      |            ^~~~~~~~

tests/integration/cppclient.cpp:120:12: error: ‘TimedOut’ does not name a type

  120 |    } catch(TimedOut& e) {

      |            ^~~~~~~~

tests/integration/cppclient.cpp:25:9: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result]

   25 |   system("rm -f hit");

      |   ~~~~~~^~~~~~~~~~~~~

tests/integration/cppclient.cpp:75:9: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result]

   75 |   system("touch hit");

      |   ~~~~~~^~~~~~~~~~~~~

tests/integration/cppclient.cpp:88:9: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result]

   88 |   system("rm hit");

      |   ~~~~~~^~~~~~~~~~

make[1]: *** [Makefile:2766: tests/integration/cppclient_t-cppclient.o] Error 1

make[1]: Leaving directory '/home/rshea/src/watchman'

make: *** [Makefile:1264: all] Error 2