picoc won't build: fatal error: readline/readline.h: No such file or directory

[lucmp]

I can't build picoc on Debian:

platform/platform_unix.c:5:31: fatal error: readline/readline.h: No such file or directory
 #include <readline/readline.h>
                               ^
compilation terminated.
<builtin>: recipe for target 'platform/platform_unix.o' failed
make: *** [platform/platform_unix.o] Error 1

I am extremely incompetent at compiling from source, but it sounds to me like some readline.h file is missing. Is there any way to fix this?

[brainbugfix]

dnf/apt install readline-devel