Bug#1038896: sumo FTBFS with googletest 1.13.0

[Adrian Bunk]

Source: sumo
Version: 1.15.0+dfsg-1
Severity: serious
Tags: ftbfs trixie sid

https://buildd.debian.org/status/fetch.php?pkg=sumo&arch=armel&ver=1.15.0%2Bdfsg-1%2Bb2&stamp=1687460689&raw=0

...
In file included from /usr/include/gtest/gtest-message.h:57,
                 from /usr/include/gtest/gtest-assertion-result.h:46,
                 from /usr/include/gtest/gtest.h:64,
                 from /<<PKGBUILDDIR>>/unittest/src/netbuild/NBHeightMapperTest.cpp:23:
/usr/include/gtest/internal/gtest-port.h:270:2: error: #error C++ versions less than C++14 are not supported.
  270 | #error C++ versions less than C++14 are not supported.
      |  ^~~~~
...