Control: tags 831125 +patch What broke the build is that gcc 6 changed the default C++ standard from C++98 to C++14.
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. Not all valid C++98 code is also valid C++11 and C++14 code. 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 the following change to tell gcc that this is C++98 code: --- debian/rules.old 2016-10-07 17:43:01.000000000 +0000 +++ debian/rules 2016-10-07 17:43:34.000000000 +0000 @@ -2,6 +2,7 @@ export DH_VERBOSE=1 export DEB_BUILD_MAINT_OPTIONS=hardening=+all +export DEB_CXXFLAGS_MAINT_APPEND = -std=gnu++98 %: dh $@ --with autoreconf --parallel 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