Installation output for epeg [fail]

Installation time: 1s

'/usr/home/chicken/salmonella/build/salmonella-run-publish/chicken/bin/chicken-install' -prefix /usr/home/chicken/salmonella/build/salmonella-run-publish/salmonella-repo/repo 2>&1
retrieving ...
checking platform for `epeg' ...
checking dependencies for `epeg' ...
install order:
("epeg")
installing epeg: ...
changing current directory to .
  '/usr/home/chicken/salmonella/build/salmonella-run-publish/chicken/bin/csi' -bnq -setup-mode -e "(require-library setup-api)" -e "(import setup-api)" -e "(setup-error-handling)" -e "(extension-name-and-version '(\"epeg\" \"\"))" -e "(destination-prefix \"/usr/home/chicken/salmonella/build/salmonella-run-publish/salmonella-repo/repo\")" -e "(runtime-prefix \"/usr/home/chicken/salmonella/build/salmonella-run-publish/salmonella-repo/repo\")" 'epeg.setup'
  '/usr/home/chicken/salmonella/build/salmonella-run-publish/chicken/bin/csc' -feature compiling-extension -setup-mode    -s -O2 epeg.scm `epeg-config --cflags` `epeg-config --libs` -j epeg
sh: epeg-config: not found
sh: epeg-config: not found
epeg.c:14:10: fatal error: 'Epeg.h' file not found
#include <Epeg.h>
         ^~~~~~~~
1 error generated.

Error: shell command terminated with non-zero exit status 256: 'clang' 'epeg.c' -o 'epeg.o' -c  -fno-strict-aliasing -fwrapv -DHAVE_CHICKEN_CONFIG_H -DC_ENABLE_PTABLES -Os -fomit-frame-pointer -fPIC -DPIC -DC_SHARED -I/usr/home/chicken/salmonella/build/salmonella-run-publish/chicken/include/chicken/ -I'/usr/home/chicken/salmonella/build/salmonella-run-publish/salmonella-repo/repo/include/chicken'

Error: shell command failed with nonzero exit status 256:

  '/usr/home/chicken/salmonella/build/salmonella-run-publish/chicken/bin/csc' -feature compiling-extension -setup-mode    -s -O2 epeg.scm `epeg-config --cflags` `epeg-config --libs` -j epeg


Error: shell command terminated with nonzero exit code
17920
"'/usr/home/chicken/salmonella/build/salmonella-run-publish/chicken/bin/csi' -bn...