diff --git a/.gitignore b/.gitignore
index 487b76a..0f83df1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /smc-tools-1.1.0.tar.gz
 /smc-tools-1.2.0.tar.gz
 /smc-tools-1.3.1.tar.gz
+/smc-tools-1.5.0.tar.gz
diff --git a/smc-tools-1.5.0-flags.patch b/smc-tools-1.5.0-flags.patch
new file mode 100644
index 0000000..be26020
--- /dev/null
+++ b/smc-tools-1.5.0-flags.patch
@@ -0,0 +1,90 @@
+diff --git a/Makefile b/Makefile
+index 427fc71..b80eaf1 100644
+--- a/Makefile
++++ b/Makefile
+@@ -61,16 +61,16 @@ endif
+ all: libsmc-preload.so libsmc-preload32.so smcd smcr smcss smc_pnet
+ 
+ CFLAGS ?= -Wall -O3 -g
+-ALL_CFLAGS = -DSMC_TOOLS_RELEASE=$(SMC_TOOLS_RELEASE) $(CFLAGS)
+-
+ ifneq ($(shell sh -c 'command -v pkg-config'),)
+-SMC_PNET_CFLAGS = $(shell pkg-config --silence-errors --cflags libnl-genl-3.0)
+-SMC_PNET_LFLAGS = $(shell pkg-config --silence-errors --libs libnl-genl-3.0)
++LIBNL_CFLAGS = $(shell pkg-config --silence-errors --cflags libnl-genl-3.0)
++LIBNL_LFLAGS = $(shell pkg-config --silence-errors --libs libnl-genl-3.0)
+ else
+-SMC_PNET_CFLAGS = -I /usr/include/libnl3
+-SMC_PNET_LFLAGS = -lnl-genl-3 -lnl-3
++LIBNL_CFLAGS = -I /usr/include/libnl3
++LIBNL_LFLAGS = -lnl-genl-3 -lnl-3
+ endif
+-CFLAGS += ${SMC_PNET_CFLAGS}
++ALL_CFLAGS += ${CFLAGS} -DSMC_TOOLS_RELEASE=$(SMC_TOOLS_RELEASE) \
++              ${LIBNL_CFLAGS} ${OPTFLAGS}
++ALL_LDFLAGS += ${LDFLAGS} ${LIBNL_LFLAGS}
+ 
+ ifeq ($(ARCHTYPE),s390x)
+ 	MACHINE_OPT32="-m31"
+@@ -79,23 +79,23 @@ else
+ endif
+ 
+ util.o: util.c  util.h
+-	${CCC} ${CFLAGS} -c util.c
++	${CCC} ${ALL_CFLAGS} -c util.c
+ 
+ libnetlink.o: libnetlink.c  libnetlink.h
+-	${CCC} ${CFLAGS} ${LDFLAGS} -c libnetlink.c
++	${CCC} ${ALL_CFLAGS} ${ALL_LDFLAGS} -c libnetlink.c
+ 
+ smc-preload.o: smc-preload.c
+-	${CCC} ${CFLAGS} -fPIC -c smc-preload.c
++	${CCC} ${ALL_CFLAGS} -fPIC -c smc-preload.c
+ 
+ libsmc-preload.so: smc-preload.o
+-	${LINK} ${LDFLAGS} -shared smc-preload.o -ldl -Wl,-z,defs,-soname,$@.$(VER_MAJOR) -o $@
++	${LINK} ${ALL_LDFLAGS} -shared smc-preload.o -ldl -Wl,-z,defs,-soname,$@.$(VER_MAJOR) -o $@
+ 	chmod u+s $@
+ 
+ libsmc-preload32.so: smc-preload.c
+ ifeq ($(ARCH),64)
+ ifeq ($(STUFF_32BIT),1)
+-	${CCC} ${CFLAGS} -fPIC -c ${MACHINE_OPT32} $< -o smc-preload32.o
+-	${LINK} ${LDFLAGS} -shared smc-preload32.o ${MACHINE_OPT32} -ldl -Wl,-soname,$@.$(VER_MAJOR) -o $@
++	${CCC} ${ALL_CFLAGS} -fPIC -c ${MACHINE_OPT32} $< -o smc-preload32.o
++	${LINK} ${ALL_LDFLAGS} -shared smc-preload32.o ${MACHINE_OPT32} -ldl -Wl,-soname,$@.$(VER_MAJOR) -o $@
+ 	chmod u+s $@
+ else
+ 	$(warning "Warning: Skipping 31/32-bit library build because 31/32-bit build tools")
+@@ -116,13 +116,13 @@ endif
+ 	${CCC} ${ALL_CFLAGS} -c $< -o $@
+ 
+ smc: smc.o dev.o linkgroup.o libnetlink.o util.o
+-	${CCC} ${ALL_CFLAGS} ${LDFLAGS} $^ ${SMC_PNET_LFLAGS} -o $@
++	${CCC} ${ALL_CFLAGS} ${ALL_LDFLAGS} $^ -o $@
+ 
+ smcd: smcd.o infod.o devd.o linkgroupd.o libnetlink.o util.o
+-	${CCC} ${ALL_CFLAGS} ${LDFLAGS} $^ ${SMC_PNET_LFLAGS} -o $@
++	${CCC} ${ALL_CFLAGS} $^ ${ALL_LDFLAGS} -o $@
+ 
+ smcr: smcr.o infor.o devr.o linkgroupr.o libnetlink.o util.o
+-	${CCC} ${ALL_CFLAGS} ${LDFLAGS} $^ ${SMC_PNET_LFLAGS} -o $@
++	${CCC} ${ALL_CFLAGS} $^ ${ALL_LDFLAGS} -o $@
+ 
+ smc_pnet: smc_pnet.c smctools_common.h
+ 	@if [ ! -e /usr/include/libnl3/netlink/netlink.h ]; then \
+@@ -135,12 +135,10 @@ smc_pnet: smc_pnet.c smctools_common.h
+ 		printf "**************************************************************\n" >&2; \
+ 		exit 1; \
+ 	fi
+-	${CCC} ${ALL_CFLAGS} ${SMC_PNET_CFLAGS} ${LDFLAGS} -o $@ $< ${SMC_PNET_LFLAGS}
++	${CCC} ${ALL_CFLAGS} $< ${ALL_LDFLAGS} -o $@
+ 
+ smcss: smcss.o libnetlink.o
+-	${CCC} ${ALL_CFLAGS} ${LDFLAGS} $^ ${SMC_PNET_LFLAGS} -o $@
+-#smcss: smcss.c smctools_common.h libnetlink.h
+-#	${CCC} ${ALL_CFLAGS} ${LDFLAGS} $< -o $@
++	${CCC} ${ALL_CFLAGS} $^ ${ALL_LDFLAGS} -o $@
+ 
+ install: all
+ 	echo "  INSTALL"
diff --git a/smc-tools-1.5.0-makefile.patch b/smc-tools-1.5.0-makefile.patch
new file mode 100644
index 0000000..7d254dd
--- /dev/null
+++ b/smc-tools-1.5.0-makefile.patch
@@ -0,0 +1,29 @@
+From c3d1f45abff2433afefaea9d31cd9cda0a7408d3 Mon Sep 17 00:00:00 2001
+From: Stefan Raspl <raspl@de.ibm.com>
+Date: Mon, 8 Feb 2021 16:43:01 +0100
+Subject: [PATCH] Makefile: Install smc_chk.8 on s390 only
+
+Since smc_chk depends on smc_rnics (which is s390-only), we should not
+install the man-page on non-s390 platforms, too.
+
+Signed-off-by: Stefan Raspl <raspl@linux.ibm.com>
+---
+ Makefile  | 2 +-
+ README.md | 1 +
+ 2 files changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index a9068d0..427fc71 100644
+--- a/Makefile
++++ b/Makefile
+@@ -161,9 +161,9 @@ ifeq ($(shell uname -m | cut -c1-4),s390)
+ 	install $(INSTALL_FLAGS_BIN) smc_rnics $(DESTDIR)$(BINDIR)
+ 	install $(INSTALL_FLAGS_MAN) smc_rnics.8 $(DESTDIR)$(MANDIR)/man8
+ 	install $(INSTALL_FLAGS_BIN) smc_chk $(DESTDIR)$(BINDIR)
++	install $(INSTALL_FLAGS_MAN) smc_chk.8 $(DESTDIR)$(MANDIR)/man8
+ endif
+ 	install $(INSTALL_FLAGS_MAN) af_smc.7 $(DESTDIR)$(MANDIR)/man7
+-	install $(INSTALL_FLAGS_MAN) smc_chk.8 $(DESTDIR)$(MANDIR)/man8
+ 	install $(INSTALL_FLAGS_MAN) smc_run.8 $(DESTDIR)$(MANDIR)/man8
+ 	install $(INSTALL_FLAGS_MAN) smc_pnet.8 $(DESTDIR)$(MANDIR)/man8
+ 	install $(INSTALL_FLAGS_MAN) smcss.8 $(DESTDIR)$(MANDIR)/man8
diff --git a/smc-tools.spec b/smc-tools.spec
index 19f3156..99e4e02 100644
--- a/smc-tools.spec
+++ b/smc-tools.spec
@@ -1,17 +1,28 @@
 Name:           smc-tools
-Version:        1.3.1
-Release:        2%{?dist}
+Version:        1.5.0
+Release:        1%{?dist}
 Summary:        Shared Memory Communication Tools
 
 License:        EPL
-URL:            https://www.ibm.com/developerworks/linux/linux390/smc-tools.html
-Source0:        https://public.dhe.ibm.com/software/dw/linux390/ht_src/%{name}-%{version}.tar.gz
+URL:            https://github.com/ibm-s390-linux/smc-tools
+Source0:        https://github.com/ibm-s390-linux/%{name}/archive/%{version}/%{name}-%{version}.tar.gz
 
-BuildRequires: make
+# https://github.com/ibm-s390-linux/smc-tools/commit/c3d1f45abff2433afefaea9d31cd9cda0a7408d3
+Patch0:         smc-tools-1.5.0-makefile.patch
+# https://github.com/ibm-s390-linux/smc-tools/issues/1
+Patch1:         smc-tools-1.5.0-flags.patch
+
+BuildRequires:  make
 BuildRequires:  gcc
 BuildRequires:  libnl3-devel
 BuildRequires:  bash-completion
 
+%ifarch s390 s390x
+# for smc_chk
+Requires:       python3
+Requires:       man
+%endif
+
 
 %description
 The Shared Memory Communication Tools (smc-tools) package enables usage of SMC
@@ -31,24 +42,33 @@ sockets in Linux.
 
 %files
 %license LICENSE
-%doc README.smctools
+%doc README.md
+%{_bindir}/smcd
+%{_bindir}/smcr
 %{_bindir}/smc_dbg
 %{_bindir}/smc_pnet
 %{_bindir}/smc_run
 %{_bindir}/smcss
 %{_libdir}/libsmc-preload.so*
 %{_mandir}/man7/af_smc.7*
+%{_mandir}/man8/smcd*.8*
+%{_mandir}/man8/smcr*.8*
 %{_mandir}/man8/smc_pnet.8*
 %{_mandir}/man8/smc_run.8*
 %{_mandir}/man8/smcss.8*
 %ifarch s390 s390x
+%{_bindir}/smc_chk
 %{_bindir}/smc_rnics
+%{_mandir}/man8/smc_chk.8*
 %{_mandir}/man8/smc_rnics.8*
 %endif
 %{_datadir}/bash-completion/
 
 
 %changelog
+* Wed Mar 17 2021 Dan Horák <dan@danny.cz> - 1.5.0-1
+- update to 1.5.0
+
 * Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
 
diff --git a/sources b/sources
index 976d41f..579bfda 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (smc-tools-1.3.1.tar.gz) = b2252d5283e3481f1909e1de198d8aaafe7dd1e7ebc506567840a69e9ef3771c10d498aa435e1954ae9e286b9c3b7df6407ad7db981f74faca3cabc233bbd9df
+SHA512 (smc-tools-1.5.0.tar.gz) = 3e28b4084308332ee60dc7f412a56e630cb72fbb5033e0bf4a21bccaed434c33b9e6720358bb614fba6d9513d3225d7df91d62523a6d27eadc80191700c7d78b