$NetBSD$

# Respect pkgsrc env

--- Makefile.orig	2020-07-21 20:20:56.996788479 +0000
+++ Makefile
@@ -21,12 +21,12 @@
 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 # DEALINGS IN THE SOFTWARE.
 
-CC       = gcc
-AR       = ar
-CPPFLAGS =
+CC       ?= gcc
+AR       ?= ar
+# CPPFLAGS =
 #CFLAGS   = -g -Wall -O2 -pedantic -std=c99 -D_XOPEN_SOURCE=600
-CFLAGS   = -g -Wall -O2
-LDFLAGS  =
+CFLAGS   ?= -g -Wall -O2
+#LDFLAGS  =
 LIBS     =
 
 LZ4DIR   = ./lz4
@@ -47,10 +47,10 @@ AOBJS=      bam_index.o bam_plcmd.o sam_
             bam_quickcheck.o bam_addrprg.o bam_markdup.o tmp_file.o
 LZ4OBJS  =  $(LZ4DIR)/lz4.o
 
-prefix      = /usr/local
-exec_prefix = $(prefix)
+PREFIX      ?= /usr/local
+exec_prefix = $(PREFIX)
 bindir      = $(exec_prefix)/bin
-datarootdir = $(prefix)/share
+datarootdir = $(PREFIX)/share
 mandir      = $(datarootdir)/man
 man1dir     = $(mandir)/man1
 
@@ -58,12 +58,11 @@ man1dir     = $(mandir)/man1
 misc_bindir = $(bindir)
 
 MKDIR_P = mkdir -p
-INSTALL = install -p
-INSTALL_DATA    = $(INSTALL) -m 644
-INSTALL_DIR     = $(MKDIR_P) -m 755
-INSTALL_MAN     = $(INSTALL_DATA)
-INSTALL_PROGRAM = $(INSTALL)
-INSTALL_SCRIPT  = $(INSTALL_PROGRAM)
+INSTALL_DATA    = ${BSD_INSTALL_DATA}
+INSTALL_DIR     = $(MKDIR_P)
+INSTALL_MAN     = ${BSD_INSTALL_MAN}
+INSTALL_PROGRAM = ${BSD_INSTALL_PROGRAM}
+INSTALL_SCRIPT  = ${BSD_INSTALL_SCRIPT}
 
 
 PROGRAMS = samtools
