--- lib/Makefile.orig	2018-11-08 11:45:00 UTC
+++ lib/Makefile
@@ -124,7 +124,7 @@ clean:
 #-----------------------------------------------------------------------------
 # make install is validated only for Linux, OSX, BSD, Hurd and Solaris targets
 #-----------------------------------------------------------------------------
-ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku MidnightBSD))
+ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD BSDSUniX FreeBSD NetBSD DragonFly SunOS Haiku MidnightBSD))
 
 .PHONY: listL120
 listL120:  # extract lines >= 120 characters in *.{c,h}, by Takayuki Matsuoka (note : $$, for Makefile compatibility)
@@ -143,7 +143,7 @@ libdir      ?= $(LIBDIR)
 INCLUDEDIR  ?= $(prefix)/include
 includedir  ?= $(INCLUDEDIR)
 
-ifneq (,$(filter $(OS),OpenBSD FreeBSD NetBSD DragonFly))
+ifneq (,$(filter $(OS),OpenBSD BSDSUniX FreeBSD NetBSD DragonFly))
 PKGCONFIGDIR ?= $(prefix)/libdata/pkgconfig
 else
 PKGCONFIGDIR ?= $(libdir)/pkgconfig