diff -ru bc-1.07.1.orig/bc/Makefile.in bc-1.07.1/bc/Makefile.in
--- bc-1.07.1.orig/bc/Makefile.in   2017-04-07 22:20:01.000000000 +0000
+++ bc-1.07.1/bc/Makefile.in    2021-09-11 11:28:55.257421400 +0000
@@ -272,8 +272,7 @@
 EXTRA_DIST = bc.h bcdefs.h const.h fix-libmath_h global.h libmath.b proto.h \
              sbc.y

-noinst_HEADERS = libmath.h
-DISTCLEANFILES = sbc sbc.c sbc.h libmath.h
+DISTCLEANFILES = sbc sbc.c sbc.h
 MAINTAINERCLEANFILES = Makefile.in bc.c bc.h scan.c \
    bc.y bcdefs.h const.h execute.c fix-libmath_h \
    global.c global.h libmath.b load.c main.c \
@@ -619,10 +618,9 @@
    uninstall-binPROGRAMS


-$(PROGRAMS): libmath.h $(LIBBC)
+$(PROGRAMS): $(LIBBC)

 scan.o: bc.h
-global.o: libmath.h

 libmath.h: libmath.b $(fbcOBJ) $(LIBBC)
    echo '{0}' > libmath.h
diff -Nru bc-1.07.1.orig/bc/libmath.h bc-1.07.1/bc/libmath.h
--- bc-1.07.1.orig/bc/libmath.h	1970-01-01 00:00:00.000000000 +0000
+++ bc-1.07.1/bc/libmath.h	2021-09-11 10:41:42.348936000 +0000
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