Control: tags -1 patch What broke the build is that gcc 6 changed the default C++ standard from C++98 to C++14.
Not all valid C++98 code is also valid C++11 and C++14 code. Note that this just changed the default, when told to process C++98 code gcc 6 does not differ in any significant way from gcc 5. Making the code compatible with C++14 would be the best possible solution, but as a workaround it is possible to fix the build with this change to tell gcc that this is C++98 code. --- debian/rules.old 2016-12-06 20:41:54.000000000 +0000 +++ debian/rules 2016-12-06 20:42:08.000000000 +0000 @@ -7,7 +7,7 @@ export CFLAGS=$(shell dpkg-buildflags --get CFLAGS) export CPPFLAGS=$(shell dpkg-buildflags --get CPPFLAGS) -export CXXFLAGS=$(shell dpkg-buildflags --get CFXXLAGS) +export CXXFLAGS=$(shell dpkg-buildflags --get CFXXLAGS) -std=gnu++98 export LDFLAGS=$(shell dpkg-buildflags --get LDFLAGS) export DEB_BUILD_HARDENING=1 cu Adrian -- "Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed