--- Makefile.orig	2020-12-09 21:33:32 UTC
+++ Makefile
@@ -47,7 +47,7 @@
 
 .SILENT:
 
-SHELL=/bin/bash
+SHELL=${LOCALBASE}/bin/bash
 NULL=true
 PART=all
 TARGET=
@@ -102,6 +102,9 @@ else
     MAKE=make
   endif
 endif
+ifeq ("$(OS)","freebsd")
+  MAKE=gmake
+endif
 RANLIB=ranlib
 
 WHICHOS=$(shell uname)
@@ -747,15 +750,15 @@ RANLIB_freebsd=yes
 FC_freebsd=f77
 
 CURSES_freebsd_gnu=yes
-CC_freebsd_gnu=gcc
-LD_freebsd_gnu=gcc
-LDOPTIONS_freebsd_gnu=-shared
+CC_freebsd_gnu=${CC}
+LD_freebsd_gnu=${CC}
+LDOPTIONS_freebsd_gnu=-shared -Wl,-soname,libcdf.so.0
 PIC_freebsd_gnu=-fPIC
-COPTIONS_freebsd_gnu=-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DMALLOC_CHECK_=0
+COPTIONS_freebsd_gnu=${CFLAGS} -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DMALLOC_CHECK_=0
 COPTIONSZlib_freebsd_gnu=-DHAVE_STDARG_H -DHAVE_UNISTD_H
-COPTIONSld_freebsd_gnu=
-FOPTIONS_freebsd_gnu=
-FOPTIONSld_freebsd_gnu=
+COPTIONSld_freebsd_gnu=${LDFLAGS}
+FOPTIONS_freebsd_gnu=${FFLAGS}
+FOPTIONSld_freebsd_gnu=${LDFLAGS}
 CURSESLIB_freebsd_gnu=-lncurses
 SYSLIBSexe_freebsd_gnu=-lm -lc
 SYSLIBSshr_freebsd_gnu=-lm -lc