"g++" not available on non-gcc systems

[eserte12]

On systems where for example clang is the default C/C++ compiler (e.g. modern FreeBSD systems) "g++" is usually not available. Using "c++" instead of "g++" would probably be a better, more compatible choice (unless you insinst on GCC extensions).

Excerpt of a failing build log on a FreeBSD 14 system:

Running Mkbootstrap for Xapian ()
chmod 644 "Xapian.bs"
"/usr/local/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- Xapian.bs blib/arch/auto/Search/Xapian/Xapian.bs 644
touch Xapian.xs
"/usr/local/bin/perl" "/usr/local/lib/perl5/5.42/ExtUtils/xsubpp"  -typemap '/usr/local/lib/perl5/5.42/ExtUtils/typemap' -typemap '/home/cpansand/.cpan/build/2026040307/Search-Xapian-1.2.25.6-2/perlobject.map' -typemap '/home/cpansand/.cpan/build/2026040307/Search-Xapian-1.2.25.6-2/typemap-errorclasses' -typemap '/home/cpansand/.cpan/build/2026040307/Search-Xapian-1.2.25.6-2/typemap'  Xapian.xs > Xapian.xsc
mv Xapian.xsc Xapian.c
g++ -c  -I/usr/local/include  -DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -DNO_POSIX_2008_LOCALE -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include -O2 -pipe -fstack-protector-strong -fno-strict-aliasing    -DVERSION=\"1.2.25.6\"  -DXS_VERSION=\"1.2.25.6\" -DPIC -fPIC "-I/usr/local/lib/perl5/5.42/mach/CORE"   Xapian.c
/bin/sh: g++: not found
*** Error code 127