diff --git a/sg3_utils-1.38-ppc64le.patch b/sg3_utils-1.38-ppc64le.patch
deleted file mode 100644
index ebcb85a..0000000
--- a/sg3_utils-1.38-ppc64le.patch
+++ /dev/null
@@ -1,92 +0,0 @@
-diff -rup sg3_utils-1.38.orig/aclocal.m4 sg3_utils-1.38/aclocal.m4
---- sg3_utils-1.38.orig/aclocal.m4	2013-10-31 16:01:34.000000000 +0100
-+++ sg3_utils-1.38/aclocal.m4	2014-04-18 15:13:20.000000000 +0200
-@@ -1326,7 +1326,7 @@ ia64-*-hpux*)
-   rm -rf conftest*
-   ;;
- 
--x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
-+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
- s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
-   # Find out which ABI we are using.
-   echo 'int i;' > conftest.$ac_ext
-@@ -1338,16 +1338,12 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
- 	    LD="${LD-ld} -m elf_i386_fbsd"
- 	    ;;
- 	  x86_64-*linux*)
--	    case `/usr/bin/file conftest.o` in
--	      *x86-64*)
--		LD="${LD-ld} -m elf32_x86_64"
--		;;
--	      *)
--		LD="${LD-ld} -m elf_i386"
--		;;
--	    esac
-+	    LD="${LD-ld} -m elf_i386"
-+	    ;;
-+	  powerpc64le-*linux*)
-+	    LD="${LD-ld} -m elf32lppclinux"
- 	    ;;
--	  ppc64-*linux*|powerpc64-*linux*)
-+	  powerpc64-*linux*)
- 	    LD="${LD-ld} -m elf32ppclinux"
- 	    ;;
- 	  s390x-*linux*)
-@@ -1366,7 +1362,10 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
- 	  x86_64-*linux*)
- 	    LD="${LD-ld} -m elf_x86_64"
- 	    ;;
--	  ppc*-*linux*|powerpc*-*linux*)
-+	  powerpcle-*linux*)
-+	    LD="${LD-ld} -m elf64lppc"
-+	    ;;
-+	  powerpc-*linux*)
- 	    LD="${LD-ld} -m elf64ppc"
- 	    ;;
- 	  s390*-*linux*|s390*-*tpf*)
-diff -rup sg3_utils-1.38.orig/configure sg3_utils-1.38/configure
---- sg3_utils-1.38.orig/configure	2013-10-31 16:01:34.000000000 +0100
-+++ sg3_utils-1.38/configure	2014-04-18 15:13:21.000000000 +0200
-@@ -6122,7 +6125,7 @@ ia64-*-hpux*)
-   rm -rf conftest*
-   ;;
- 
--x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
-+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
- s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
-   # Find out which ABI we are using.
-   echo 'int i;' > conftest.$ac_ext
-@@ -6138,16 +6141,12 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
- 	    LD="${LD-ld} -m elf_i386_fbsd"
- 	    ;;
- 	  x86_64-*linux*)
--	    case `/usr/bin/file conftest.o` in
--	      *x86-64*)
--		LD="${LD-ld} -m elf32_x86_64"
--		;;
--	      *)
--		LD="${LD-ld} -m elf_i386"
--		;;
--	    esac
-+	    LD="${LD-ld} -m elf_i386"
- 	    ;;
--	  ppc64-*linux*|powerpc64-*linux*)
-+	  powerpc64le-*linux*)
-+	    LD="${LD-ld} -m elf32lppclinux"
-+	    ;;
-+	  powerpc64-*linux*)
- 	    LD="${LD-ld} -m elf32ppclinux"
- 	    ;;
- 	  s390x-*linux*)
-@@ -6166,7 +6165,10 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
- 	  x86_64-*linux*)
- 	    LD="${LD-ld} -m elf_x86_64"
- 	    ;;
--	  ppc*-*linux*|powerpc*-*linux*)
-+	  powerpcle-*linux*)
-+	    LD="${LD-ld} -m elf64lppc"
-+	    ;;
-+	  powerpc-*linux*)
- 	    LD="${LD-ld} -m elf64ppc"
- 	    ;;
- 	  s390*-*linux*|s390*-*tpf*)
diff --git a/sg3_utils-1.42-sysmacros.patch b/sg3_utils-1.42-sysmacros.patch
new file mode 100644
index 0000000..5633653
--- /dev/null
+++ b/sg3_utils-1.42-sysmacros.patch
@@ -0,0 +1,132 @@
+diff --git a/lib/sg_pt_linux.c b/lib/sg_pt_linux.c
+index 76773fa..914570b 100644
+--- a/lib/sg_pt_linux.c
++++ b/lib/sg_pt_linux.c
+@@ -18,8 +18,11 @@
+ #include <errno.h>
+ #include <fcntl.h>
+ #include <sys/ioctl.h>
+-#include <sys/types.h>
+ #include <sys/stat.h>
++#include <sys/sysmacros.h>      /* to define 'major' */
++#ifndef major
++#include <sys/types.h>
++#endif
+ 
+ 
+ #ifdef HAVE_CONFIG_H
+diff --git a/src/sg_dd.c b/src/sg_dd.c
+index 97a6f77..7bb5eed 100644
+--- a/src/sg_dd.c
++++ b/src/sg_dd.c
+@@ -44,13 +44,15 @@
+ #define __STDC_FORMAT_MACROS 1
+ #include <inttypes.h>
+ #include <sys/ioctl.h>
+-#include <sys/types.h>
+ #include <sys/stat.h>
+-#include <sys/sysmacros.h>
+ #include <sys/time.h>
+ #include <sys/file.h>
+-#include <linux/major.h>
++#include <sys/sysmacros.h>
++#ifndef major
++#include <sys/types.h>
++#endif
+ #include <linux/fs.h>   /* <sys/mount.h> */
++#include <linux/major.h>
+ 
+ #ifdef HAVE_CONFIG_H
+ #include "config.h"
+diff --git a/src/sg_map26.c b/src/sg_map26.c
+index 7739592..8e583d2 100644
+--- a/src/sg_map26.c
++++ b/src/sg_map26.c
+@@ -33,8 +33,11 @@
+ #include <dirent.h>
+ #include <libgen.h>
+ #include <sys/ioctl.h>
+-#include <sys/types.h>
+ #include <sys/stat.h>
++#include <sys/sysmacros.h>      /* new location for major + minor */
++#ifndef major
++#include <sys/types.h>
++#endif
+ #include <linux/major.h>
+ 
+ #ifdef HAVE_CONFIG_H
+diff --git a/src/sg_read.c b/src/sg_read.c
+index 2cf8212..1eb0411 100644
+--- a/src/sg_read.c
++++ b/src/sg_read.c
+@@ -36,9 +36,11 @@
+ #define __STDC_FORMAT_MACROS 1
+ #include <inttypes.h>
+ #include <sys/ioctl.h>
+-#include <sys/types.h>
+ #include <sys/stat.h>
+ #include <sys/sysmacros.h>
++#ifndef major
++#include <sys/types.h>
++#endif
+ #include <sys/mman.h>
+ #include <sys/time.h>
+ #include <linux/major.h>
+diff --git a/src/sg_xcopy.c b/src/sg_xcopy.c
+index 11206ac..49b4341 100644
+--- a/src/sg_xcopy.c
++++ b/src/sg_xcopy.c
+@@ -47,11 +47,13 @@
+ #define __STDC_FORMAT_MACROS 1
+ #include <inttypes.h>
+ #include <sys/ioctl.h>
+-#include <sys/types.h>
+ #include <sys/stat.h>
+-#include <sys/sysmacros.h>
+ #include <sys/time.h>
+ #include <sys/file.h>
++#include <sys/sysmacros.h>
++#ifndef major
++#include <sys/types.h>
++#endif
+ #include <linux/major.h>
+ #include <linux/fs.h>   /* <sys/mount.h> */
+ 
+diff --git a/src/sgm_dd.c b/src/sgm_dd.c
+index 4e40acc..edf4861 100644
+--- a/src/sgm_dd.c
++++ b/src/sgm_dd.c
+@@ -48,11 +48,13 @@
+ #define __STDC_FORMAT_MACROS 1
+ #include <inttypes.h>
+ #include <sys/ioctl.h>
+-#include <sys/types.h>
+ #include <sys/stat.h>
+-#include <sys/sysmacros.h>
+-#include <sys/mman.h>
+ #include <sys/time.h>
++#include <sys/mman.h>
++#include <sys/sysmacros.h>
++#ifndef major
++#include <sys/types.h>
++#endif
+ #include <linux/major.h>
+ #include <linux/fs.h>   /* <sys/mount.h> */
+ 
+diff --git a/src/sgp_dd.c b/src/sgp_dd.c
+index 1ebecca..be9547b 100644
+--- a/src/sgp_dd.c
++++ b/src/sgp_dd.c
+@@ -43,9 +43,11 @@
+ #define __STDC_FORMAT_MACROS 1
+ #include <inttypes.h>
+ #include <sys/ioctl.h>
+-#include <sys/types.h>
+ #include <sys/stat.h>
+ #include <sys/sysmacros.h>
++#ifndef major
++#include <sys/types.h>
++#endif
+ #include <sys/time.h>
+ #include <linux/major.h>
+ #include <linux/fs.h>   /* <sys/mount.h> */
diff --git a/sg3_utils.spec b/sg3_utils.spec
index 63dadaf..0dfd24c 100644
--- a/sg3_utils.spec
+++ b/sg3_utils.spec
@@ -3,13 +3,16 @@
 Summary: Utilities for devices that use SCSI command sets
 Name: sg3_utils
 Version: 1.42
-Release: 5%{?dist}
+Release: 6%{?dist}
 License: GPLv2+ and BSD
 Group: Applications/System
 Source0: http://sg.danny.cz/sg/p/sg3_utils-%{version}.tar.xz
 Source2: scsi-rescan.8
 # https://bugzilla.redhat.com/show_bug.cgi?id=920687
 Patch0: sg3_utils-1.37-dont-open-dev-snapshot.patch
+# use sysmacros.h for major()/minor()
+# backported from https://github.com/hreinecke/sg3_utils/commit/3e50c99af4a446642c7055d1d06b84a94e4a76c2
+Patch1: sg3_utils-1.42-sysmacros.patch
 URL: http://sg.danny.cz/sg/sg3_utils.html
 Requires: %{name}-libs%{?_isa} = %{version}-%{release}
 BuildRequires: gcc
@@ -48,6 +51,7 @@ developing applications.
 %prep
 %setup -q
 %patch0 -p1 -b .dev-snapshot
+%patch1 -p1 -b .sysmacros
 
 
 %build
@@ -85,6 +89,9 @@ install -p -m 644 %{SOURCE2} $RPM_BUILD_ROOT%{_mandir}/man8
 
 
 %changelog
+* Mon Jul 16 2018 Dan Horák <dan[at]danny.cz> - 1.42-6
+- fix build with new glibc - use sysmacros.h for major()/minor()
+
 * Sat Jul 14 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.42-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild