latest Makefile breaks compilation of security/clamav if base is lacking sendmail

[Michael Grimm]

Hi,

I am running 12.1-STABLE (r362940), ports head (541271) and compile all my ports with poudriere-devel

My /etc/src.conf contains …

	WITHOUT_SENDMAIL=yes

… thus I do not have /usr/lib/libmilter.so in base.

The recent modification of security/clamav/Makefile breaks my setup (again [1], see https://lists.freebsd.org/pipermail/freebsd-ports/2018-December/115116.html).

Error message ...

	checking for mi_stop in -lmilter… no
	configure: error: Cannot find libmilter
	...
	*** Error code 1

… and after having that fixed another error:

	checking for mi_stop in -lmilter… yes
	checking libmilter/mfapi.h usability… no
	checking libmilter/mfapi.h presence… no
	checking for libmilter/mfapi.h… no
	configure: error: Please install mfapi.h from the sendmail distribution
	===>  Script "configure" failed unexpectedly.
	...
	*** Error code 1


I managed to get compilation working with the attached, surely crude and dirty hack (due to my lack of knowledge regarding ports Makefiles), by adding 'MILTER_LDFLAGS= -L${LOCALBASE}/lib' and 'MILTER_CFLAGS= -I${LOCALBASE}/include'  in order to help finding relevant files from port mail/libmilter.

What worries my somehow, although clamav is working as usual, is the following part in poudrier's log:

	checking for mi_stop in -lmilter… yes
	checking libmilter/mfapi.h usability… yes
	checking libmilter/mfapi.h presence… no
	configure: WARNING: libmilter/mfapi.h: accepted by the compiler, rejected by the preprocessor!
	configure: WARNING: libmilter/mfapi.h: proceeding with the compiler's result
	checking for libmilter/mfapi.h... yes


Here my question: Is this the right way to fix this issue?

Thanks and regards,
Michael

[1] no pun intended

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