# CFLAGS="-g" ./configure --prefix=/opt/e2fsprogs --enable-htree --enable-jfs-debug && make
[....]
making all in e2fsck
make[2]: Entering directory `/data/Scratch/scm/e2fsprogs-git/e2fsck'
	CC journal.c
journal.c: In function ‘getblk’:
journal.c:76: error: ‘bh_count’ undeclared (first use in this function)
journal.c:76: error: (Each undeclared identifier is reported only once
journal.c:76: error: for each function it appears in.)
make[2]: *** [journal.o] Error 1
make[2]: Leaving directory `/data/Scratch/scm/e2fsprogs-git/e2fsck'
make[1]: *** [all-progs-recursive] Error 1
make[1]: Leaving directory `/data/Scratch/scm/e2fsprogs-git'
make: *** [all] Error 2