During preserve-rebuild: checking for X11... yes checking for library containing cap_init... -lcap checking sys/capability.h usability... yes checking sys/capability.h presence... yes checking for sys/capability.h... yes checking for LIBCHECK... no checking for LIBJSON... no configure: error: Package requirements ( json >= 0.9 ) were not met: No package 'json' found Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively, you may set the environment variables LIBJSON_CFLAGS and LIBJSON_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details.
might be a duplicate of bug #467280
*** This bug has been marked as a duplicate of bug 467280 ***