Explicity-specify-AM_PROG_AR.patch

diff --git a/configure.ac b/configure.ac
index 4ffb68f..445f677 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,6 +7,7 @@ AC_PREREQ(2.60)
 AC_CONFIG_HEADERS(config.h)
 AC_CONFIG_SRCDIR(src/sbsign.c)
 
+AM_PROG_AR
 AM_PROG_AS
 AC_PROG_CC
 AM_PROG_CC_C_O

Fix-endian.h-include-on-macOS.patch

diff --git a/configure.ac b/configure.ac
index 4ffb68f..53c1cd1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -29,8 +29,8 @@ fi
 
 AC_MSG_CHECKING([build system endianness])
 AC_PREPROC_IFELSE(
-  [AC_LANG_PROGRAM([[#include <endian.h>]],
-		   [[#if __BYTE_ORDER != __LITTLE_ENDIAN]]
+  [AC_LANG_PROGRAM([[#include <machine/endian.h>]],
+		   [[#if BYTE_ORDER != LITTLE_ENDIAN]]
 		   [[#error]]
 		   [[#endif]])],
   endian=little
@@ -38,8 +38,8 @@ AC_PREPROC_IFELSE(
   big_endian=0)
 
 AC_PREPROC_IFELSE(
-  [AC_LANG_PROGRAM([[#include <endian.h>]],
-		   [[#if __BYTE_ORDER != __BIG_ENDIAN]]
+  [AC_LANG_PROGRAM([[#include <machine/endian.h>]],
+		   [[#if BYTE_ORDER != BIG_ENDIAN]]
 		   [[#error]]
 		   [[#endif]])],
   endian=big
@@ -48,7 +48,7 @@ AC_PREPROC_IFELSE(
 
 
 if test x"$endian" != "xbig" -a x"$endian" != "xlittle"; then
-  AC_MSG_ERROR([Can't determine endianness; is endian.h present?])
+  AC_MSG_ERROR([Can't determine endianness; is <machine/endian.h> present?])
 fi
 AC_MSG_RESULT($endian)
 AC_DEFINE_UNQUOTED(HAVE_LITTLE_ENDIAN, $little_endian, [Little-endian system])

Skip-sbsiglist-on-macOS.patch

diff --git a/docs/Makefile.am b/docs/Makefile.am
index 89ed110..1b5a588 100644
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -1,9 +1,8 @@
 
-man1_MANS = sbsign.1 sbverify.1 sbattach.1 sbvarsign.1 sbsiglist.1 \
-		sbkeysync.1
+man1_MANS = sbsign.1 sbverify.1 sbattach.1 sbvarsign.1 sbsiglist.1
 
 EXTRA_DIST = sbsign.1.in sbverify.1.in sbattach.1.in \
-		sbvarsign.1.in sbsiglist.1.in sbkeysync.1.in
+		sbvarsign.1.in sbsiglist.1.in
 CLEANFILES = $(man1_MANS)
 
 $(builddir)/%.1: $(srcdir)/%.1.in $(top_builddir)/src/%
diff --git a/src/Makefile.am b/src/Makefile.am
index e3f039b..864bdd0 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,5 +1,5 @@
 
-bin_PROGRAMS = sbsign sbverify sbattach sbvarsign sbsiglist sbkeysync
+bin_PROGRAMS = sbsign sbverify sbattach sbvarsign sbsiglist
 
 coff_headers = coff/external.h coff/pe.h
 AM_CFLAGS = -Wall -Wextra --std=gnu99