src/lib/libmagic/Makefile, branch releng/12.2

MFC r362258, r362279: file 5.39

2020-07-01T16:18:35+00:00

Relnotes:	yes

MFC r357757: MFV r357712: file 5.38.

2020-04-05T02:27:49+00:00

Update dirdeps.mk and gendirdeps.mk

2019-12-19T04:49:34+00:00

The env space consumed by exporting all libc's .meta files
left little room for command line,
so unexport when done.

Update dirdeps.mk to latest and add
dirdeps-targets.mk to simplify/update targets/Makefile

Makefile changes to go with Makefile.depend changes in D22494

MFC of r355618

Reviewed by:	 bdrewery
Sponsored by:   Juniper Networks
Differential Revision:  https://reviews.freebsd.org/D22495

MFC r354595, r354802:

2019-11-21T07:29:25+00:00

MFV r354582: file 5.37

MFV r354798:

Apply vendor fixes:

06de62c Detect multiplication overflow when computing sector position
46a8443 Limit the number of elements in a vector (found by oss-fuzz)

Security:       CVE-2019-18218

Don't use CCACHE for linking.

2018-06-27T19:29:15+00:00

MFC after:	2 weeks
Sponsored by:	Dell EMC

Style fixup:

2018-05-20T05:59:42+00:00

A non-functional commit to make adjustment to an aesthetically
unpleasing long line.

Fix build post r333919.

2018-05-20T05:59:35+00:00

This commit results in an aesthetically unpleasing long line
which will be fixed next commit.

LIB32: Avoid linking in unneeded (and invalid lib32) libz for libmagic build tool.

2018-03-09T18:51:24+00:00

Usually this is just ignored:
  /usr/bin/ld: skipping incompatible /scratch/obj/root/git/freebsd/amd64.amd64/obj-lib32/lib/libz/libz.so when searching for -lz
  /usr/bin/ld: skipping incompatible /scratch/obj/root/git/freebsd/amd64.amd64/obj-lib32/lib/libz/libz.a when searching for -lz

However some combination of newer toolchains simply fail here instead:
  /usr/bin/ld: error: /home/dstolfa/obj/home/dstolfa/cadets/amd64.amd64/obj-lib32/lib/libz/libz.so is incompatible with /usr/lib/crt1.o

Libz is not needed for mkmagic so just exclude it.

Reported by:	Domagoj Stolfa 
MFC after:	2 weeks
Sponsored by:	Dell EMC

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

2017-01-20T04:45:09+00:00

This simplifies pathing in make/displayed output

MFC after:    3 weeks
Sponsored by: Dell EMC Isilon

Fix build: explicitly reference the generated magic.h as dependency

2016-06-27T06:41:11+00:00

of mkmagic and point its location.

Reported by:	jenkins
Pointy hat to:	delphij
MFC after:	2 weeks
X-MFC-With:	302221
Approved by:	re (kib)