gz-physics fails to compile against dartsim 6.14.1

[scpeters]

Environment

• OS Version: macOS 12.6.6-x86_64
• Source or binary build? source of gz-physics7 branch (f54d4de)

https://build.osrfoundation.org/job/gz_physics-ci-gz-physics7-homebrew-amd64/62/

Description

• Expected behavior: it should compile
• Actual behavior: it fails to compile

Steps to reproduce

1. Install latest version (6.14.1) of dartsim on macOS from homebrew
2. Build gz-physics7
3. Observer compiler error

Output

/tmp/gz-physics7-20240628-32522-zc6n0e/gz-physics-7.3.0/dartsim/src/Base.hh:44:5: error: invalid token at start of a preprocessor expression
#if DART_VERSION_AT_LEAST(6, 13, 0)
    ^
/usr/local/include/dart/config.hpp:38:3: note: expanded from macro 'DART_VERSION_AT_LEAST'
  DART_VERSION_GE(x, y, z)
  ^
/usr/local/include/dart/config.hpp:19:4: note: expanded from macro 'DART_VERSION_GE'
  (DART_MAJOR_VERSION > x                                                      \
   ^
/usr/local/include/dart/config.hpp:5:28: note: expanded from macro 'DART_MAJOR_VERSION'
#define DART_MAJOR_VERSION @DART_MAJOR_VERSION @
                           ^

There is a potential fix in dartsim/dart#1820

[scpeters]

gz-physics7 compiles again now that dartsim 6.14.2 is released