Issue installing ivy-c and jbsim on OSX 10.13

[JannKleen]

in addition to the error mentioned in #2 I get the following error message when trying to install jbsim

==> Checking out revision c4f7f7ce33aac0b0787a2df20acb05eeab6776b3
==> ./autogen.sh
==> ./configure --enable-libraries --enable-shared --prefix=/usr/local/Cellar/jsbsim/1.0-c4f747
==> make install
Last 15 lines from /Users/jann/Library/Logs/Homebrew/jsbsim/03.make:
  CXX      libModels_la-FGMassBalance.lo
  CXX      libModels_la-FGModel.lo
  CXX      libModels_la-FGOutput.lo
  CXX      libModels_la-FGPropagate.lo
  CXX      libModels_la-FGPropulsion.lo
  CXX      libModels_la-FGInput.lo
FGInput.cpp:180:25: error: ordered comparison between pointer and zero ('JSBSim::FGPropertyManager *' and 'int')
        } else if (node > 0) {
                   ~~~~ ^ ~
1 error generated.
make[3]: *** [libModels_la-FGInput.lo] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [install-recursive] Error 1
make[1]: *** [install-recursive] Error 1
make: *** [install-recursive] Error 1

[kolergy]

I have a similar issue using brew on osx 10.13.4 but with different errors:
==> make -C src -f Makefile.osx PREFIX=/usr/local/Cellar/ivy-c/3.15 install
Last 15 lines from /Users/Kolergy/Library/Logs/Homebrew/ivy-c/01.make:
pcrecpp::string
/usr/local/Cellar/pcre/8.42/include/pcre_stringpiece.h:59:12: note: 'pcrecpp::string' declared here
using std::string;
^
8 errors generated.
make[1]: *** [ivythroughput.o] Error 1
make: *** [tools] Error 2
make: *** Waiting for unfinished jobs....
install_name_tool -id /usr/local/Cellar/ivy-c/3.15/lib/libglibivy.dylib libglibivy.dylib
install -m644 libivy.a /usr/local/Cellar/ivy-c/3.15/lib/
install -m644 libivy.dylib /usr/local/Cellar/ivy-c/3.15/lib/
install -m644 libglibivy.a /usr/local/Cellar/ivy-c/3.15/lib/
install -m644 libglibivy.dylib /usr/local/Cellar/ivy-c/3.15/lib/
install -m644 libtclivy.a /usr/local/Cellar/ivy-c/3.15/lib/
install -m644 libtclivy.dylib /usr/local/Cellar/ivy-c/3.15/lib/

If reporting this issue please do so at (not Homebrew/brew or Homebrew/core):
https://github.com/paparazzi/homebrew-paparazzi/issues