Apparently tmpreaper-1.6.13 requires the /usr/include/ext2fs/ext2_fs.h header file from sys-fs/e2fsprogs: >>> Compiling source in /var/tmp/portage/app-admin/tmpreaper-1.6.13/work/tmpreaper-1.6.13+nmu1 ... make -j4 -l4 x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I. -O2 -pipe -frecord-gcc-switches -c tmpreaper.c tmpreaper.c:87:29: fatal error: ext2fs/ext2_fs.h: No such file or directory # include <ext2fs/ext2_fs.h> ^ compilation terminated. Makefile:343: recipe for target 'tmpreaper.o' failed make: *** [tmpreaper.o] Error 1 emake failed
Fixed: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=21eea2745e80dd5823bcf3598cde7875e0fc697f