>> + (arguments >> + `(#:make-flags >> + (let ((c-flags "-g -O2")) >> + (list (string-append "PREFIX=" (assoc-ref %outputs "out")) >> + "CC=gcc" > >This shoul be ,(string-append "CC=" (cc-for-target)), such that the cross-compiler >is used when cross-compililng. Fixed! >> + (string-append "CFLAGS=" c-flags) >> + (string-append "LDFLAGS=" c-flags))) > >Why are you adding "-g -O2" to LDFLAGS? I understand adding it to CFLAGS, >but I don't see why it would be added to CFLAGS. You’re right. Removed LDFLAGS. >> + ;; Patch gzip/sendmail/shell paths. >> + (substitute* "execute.c" >> + (("execlp\\(\"gzip\"") (format #f "execlp(\"~a\"" (which "gzip")))) > >This needs to be (search-input-file "bin/gzip") instead of (which "gzip") >for cross-compilation purposes ('which' searches for a native "gzip" in $PATH) >'search-input-file' is not yet defined on 'master' (it's only on 'core-updates' >currently), so you could do something like > > (string-append (assoc-ref inputs "gzip") "/bin/gzip") Changed “which” to “string-append” here and everywhere else. >If you fix 'sendemail' to install things in "sbin" instead of >"usr/sbin", then you can do (search-input-file inputs "bin/sendmail"). I’ve sent a separate patch that fixes /sbin and /bin directories for “sendmail”. Thank you for the review, Maxime!