diff -Naur jbigkit-2.1.old/libjbig/Makefile jbigkit-2.1/libjbig/Makefile

--- jbigkit-2.1.old/libjbig/Makefile	2014-03-27 19:47:15.000000000 +0100

+++ jbigkit-2.1/libjbig/Makefile	2014-08-04 10:45:31.865773710 +0200

@@ -4,25 +4,27 @@

 CC = gcc

 # Options for the compiler: A high optimization level is suggested

-CFLAGS = -g -O -W -Wall -ansi -pedantic # --coverage

+CFLAGS = $(RPM_OPT_FLAGS) -W -Wall -ansi -pedantic # --coverage

+PICFLAGS := -fPIC -DPIC

-all: libjbig.a libjbig85.a tstcodec tstcodec85

+all: libjbig.so.$(VERSION) tstcodec tstcodec85

-tstcodec: tstcodec.o jbig.o jbig_ar.o

-	$(CC) $(CFLAGS) -o tstcodec tstcodec.o jbig.o jbig_ar.o

+tstcodec: tstcodec.o libjbig.so

+	$(CC) $(CFLAGS) -o tstcodec $< -L. -ljbig

-tstcodec85: tstcodec85.o jbig85.o jbig_ar.o

-	$(CC) $(CFLAGS) -o tstcodec85 tstcodec85.o jbig85.o jbig_ar.o

+tstcodec85: tstcodec85.o libjbig85.so

+	$(CC) $(CFLAGS) -o tstcodec85 $< -L. -ljbig85

-libjbig.a: jbig.o jbig_ar.o

-	rm -f libjbig.a

-	ar rc libjbig.a jbig.o jbig_ar.o

-	-ranlib libjbig.a

+%.so: %.so.$(VERSION)

+	ln -sf $< $@

-libjbig85.a: jbig85.o jbig_ar.o

-	rm -f libjbig85.a

-	ar rc libjbig85.a jbig85.o jbig_ar.o

-	-ranlib libjbig85.a

+libjbig.so.$(VERSION): jbig.o jbig_ar.o

+	$(CC) $(CFLAGS) -shared -Wl,-soname,$@ -o $@ $^

+

+libjbig85.so.$(VERSION): jbig85.o jbig_ar.o

+	$(CC) $(CFLAGS) -shared -Wl,-soname,$@ -o $@ $^

+

+jbig.o jbig85.o jbig_ar.o: CFLAGS += $(PICFLAGS)

 jbig.o: jbig.c jbig.h jbig_ar.h

 jbig85.o: jbig85.c jbig85.h jbig_ar.h

@@ -43,11 +45,11 @@

 	clang --analyze *.c

 test: tstcodec tstcodec85

-	./tstcodec

-	./tstcodec85

+	LD_LIBRARY_PATH=`pwd` ./tstcodec

+	LD_LIBRARY_PATH=`pwd` ./tstcodec85

 t82test.pbm: tstcodec

-	./tstcodec $@

+	LD_LIBRARY_PATH=`pwd` ./tstcodec $@

 clean:

 	rm -f *.o *.gcda *.gcno *.gcov *.plist *~ core gmon.out dbg_d\=??.pbm

diff -Naur jbigkit-2.1.old/Makefile jbigkit-2.1/Makefile

--- jbigkit-2.1.old/Makefile	2014-03-27 19:47:15.000000000 +0100

+++ jbigkit-2.1/Makefile	2014-08-04 10:52:09.242027746 +0200

@@ -4,25 +4,26 @@

 CC = gcc

 # Options for the compiler: A high optimization level is suggested

-CFLAGS = -O2 -W -Wno-unused-result

+CFLAGS = $(RPM_OPT_FLAGS) -W -Wno-unused-result

 # CFLAGS = -O -g -W -Wall -Wno-unused-result -ansi -pedantic # -DDEBUG

 export CC CFLAGS

 VERSION=2.1

+export VERSION

 all: lib pbm

 	@echo "Enter 'make test' in order to start some automatic tests."

 lib:

-	cd libjbig && $(MAKE) -e

+	make -C libjbig

 pbm: lib

-	cd pbmtools && $(MAKE) -e

+	make -C pbmtools

 test: lib pbm

-	cd libjbig  && $(MAKE) test

-	cd pbmtools && $(MAKE) test

+	LD_LIBRARY_PATH=`pwd`/libjbig make -C libjbig test

+	LD_LIBRARY_PATH=`pwd`/libjbig make -C pbmtools test

 analyze:

 	cd libjbig  && $(MAKE) analyze

@@ -30,8 +31,8 @@

 clean:

 	rm -f *~ core

-	cd libjbig  && $(MAKE) clean

-	cd pbmtools && $(MAKE) clean

+	make -C libjbig clean

+	make -C pbmtools clean

 distribution:

 	rm -rf jbigkit-$(VERSION)

diff -Naur jbigkit-2.1.old/pbmtools/Makefile jbigkit-2.1/pbmtools/Makefile

--- jbigkit-2.1.old/pbmtools/Makefile	2014-03-27 19:47:15.000000000 +0100

+++ jbigkit-2.1/pbmtools/Makefile	2014-08-04 10:49:47.694581174 +0200

@@ -4,26 +4,26 @@

 CC = gcc

 # Options for the compiler

-CFLAGS = -g -O -W -Wall -Wno-unused-result -ansi -pedantic # --coverage

+CFLAGS = $(RPM_OPT_FLAGS) -W -Wall -Wno-unused-result -ansi -pedantic # --coverage

 CPPFLAGS = -I../libjbig 

 .SUFFIXES: .1 .5 .txt $(SUFFIXES)

 .PHONY: txt test test82 test85 clean

-all: pbmtojbg jbgtopbm pbmtojbg85 jbgtopbm85 txt

+all: pbmtojbg jbgtopbm pbmtojbg85 jbgtopbm85 # txt

 txt: pbmtojbg.txt jbgtopbm.txt pbm.txt pgm.txt

-pbmtojbg: pbmtojbg.o ../libjbig/libjbig.a

+pbmtojbg: pbmtojbg.o ../libjbig/libjbig.so

 	$(CC) $(CFLAGS) -o pbmtojbg pbmtojbg.o -L../libjbig -ljbig

-jbgtopbm: jbgtopbm.o ../libjbig/libjbig.a

+jbgtopbm: jbgtopbm.o ../libjbig/libjbig.so

 	$(CC) $(CFLAGS) -o jbgtopbm jbgtopbm.o -L../libjbig -ljbig

-pbmtojbg85: pbmtojbg85.o ../libjbig/libjbig85.a

+pbmtojbg85: pbmtojbg85.o ../libjbig/libjbig85.so

 	$(CC) $(CFLAGS) -o pbmtojbg85 pbmtojbg85.o -L../libjbig -ljbig85

-jbgtopbm85: jbgtopbm85.o ../libjbig/libjbig85.a

+jbgtopbm85: jbgtopbm85.o ../libjbig/libjbig85.so

 	$(CC) $(CFLAGS) -o jbgtopbm85 jbgtopbm85.o -L../libjbig -ljbig85

 jbgtopbm.o: jbgtopbm.c ../libjbig/jbig.h

@@ -31,13 +31,13 @@

 jbgtopbm85.o: jbgtopbm85.c ../libjbig/jbig85.h

 pbmtojbg85.o: pbmtojbg85.c ../libjbig/jbig85.h

-../libjbig/libjbig.a: ../libjbig/jbig.c ../libjbig/jbig.h \

+../libjbig/libjbig.so: ../libjbig/jbig.c ../libjbig/jbig.h \

 	../libjbig/jbig_ar.c ../libjbig/jbig_ar.h

-	make -C ../libjbig libjbig.a

+	make -C ../libjbig libjbig.so

-../libjbig/libjbig85.a: ../libjbig/jbig85.c ../libjbig/jbig85.h \

+../libjbig/libjbig85.so: ../libjbig/jbig85.c ../libjbig/jbig85.h \

 	../libjbig/jbig_ar.c ../libjbig/jbig_ar.h

-	make -C ../libjbig libjbig85.a

+	make -C ../libjbig libjbig85.so

 analyze:

 	clang $(CPPFLAGS) --analyze *.c