diff -up pnm2ppa-1.13/Makefile.am.ldflags pnm2ppa-1.13/Makefile.am
--- pnm2ppa-1.13/Makefile.am.ldflags	2023-10-20 13:52:38.470722125 +0200
+++ pnm2ppa-1.13/Makefile.am	2023-10-20 13:53:24.625056218 +0200
@@ -125,7 +125,7 @@ CLEANFILES = hash_ink.c make_hash_ink
 CC_FOR_BUILD = @CC_FOR_BUILD@
 CFLAGS_FOR_BUILD = $(RPM_OPT_FLAGS) -O2
 CPPFLAGS_FOR_BUILD = -I$(top_srcdir)
-LDFLAGS_FOR_BUILD =
+LDFLAGS_FOR_BUILD = $(LDFLAGS)
 LDLIBS_FOR_BUILD =
 
 make_hash_ink: make_hash_ink.c
diff -up pnm2ppa-1.13/pbm2ppa-0.8.6/Makefile.ldflags pnm2ppa-1.13/pbm2ppa-0.8.6/Makefile
--- pnm2ppa-1.13/pbm2ppa-0.8.6/Makefile.ldflags	2023-10-20 13:39:19.049686539 +0200
+++ pnm2ppa-1.13/pbm2ppa-0.8.6/Makefile	2023-10-20 13:39:19.053686629 +0200
@@ -1,6 +1,5 @@
 CC=gcc
 CFLAGS=$(RPM_OPT_FLAGS)
-LDFLAGS=
 PRINTER=HP720
 
 default: all
@@ -23,7 +22,7 @@ pbm2ppa: pbm2ppa.o ppa.o pbm.o cutswath.
 	$(CC) $(LDFLAGS) -o pbm2ppa pbm2ppa.o ppa.o pbm.o cutswath.o
 
 pbmtpg: pbmtpg.o
-	$(CC) $(CFLAGS) -o pbmtpg pbmtpg.o -lm
+	$(CC) $(CFLAGS) $(LDFLAGS) -o pbmtpg pbmtpg.o -lm
 
 .c.o: $*.c ppa.h pbm.h
 	$(CC) $(CFLAGS) -DDEFAULT_PRINTER=$(PRINTER)  -c $*.c