diff --git a/gzip.spec b/gzip.spec
index 345527c..1646cc8 100644
--- a/gzip.spec
+++ b/gzip.spec
@@ -1,6 +1,6 @@
 Name:          gzip
 Version:       1.10
-Release:       2mamba
+Release:       4mamba
 Summary:       The GNU data compression program
 Group:         Applications/Archiving
 Vendor:        openmamba
@@ -23,7 +23,10 @@ License:       GPL
 BuildRequires: glibc-devel
 ## AUTOBUILDREQ-END
 Requires(post):%{__install_info}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+Requires(post): filesystem >= 2.3-4mamba
+Provides:       /bin/gunzip
+Provides:       /bin/gzip
+Provides:       /bin/zcat
 
 %description
 The gzip package contains the popular GNU gzip data compression program.
@@ -47,19 +50,19 @@ Gzipped files have a .gz extension.
 
 %build
 export DEFS="NO_ASM"
-%configure --bindir=/bin
+%configure --bindir=%{_bindir}
 %make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%makeinstall bindir=/bin
+%makeinstall bindir=%{_bindir}
 
 # uncompress is a part of ncompress package
-rm -f %{buildroot}/bin/uncompress
+rm -f %{buildroot}%{_bindir}/uncompress
 
-# create symlink needed by some broken rpms
-install -d %{buildroot}%{_bindir}
-ln -sf /bin/gzip %{buildroot}%{_bindir}/gzip
+## create symlink needed by some broken rpms
+#install -d %{buildroot}%{_bindir}
+#ln -sf /bin/gzip %{buildroot}%{_bindir}/gzip
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
@@ -74,20 +77,7 @@ ln -sf /bin/gzip %{buildroot}%{_bindir}/gzip
 
 %files
 %defattr(-,root,root)
-/bin/gunzip
-/bin/gzexe
-/bin/gzip
-/bin/zcat
-/bin/zcmp
-/bin/zdiff
-/bin/zegrep
-/bin/zfgrep
-/bin/zforce
-/bin/zgrep
-/bin/zless
-/bin/zmore
-/bin/znew
-%{_bindir}/gzip
+%{_bindir}/*
 %{_infodir}/gzip.*
 %{_mandir}/man1/gunzip.*
 %{_mandir}/man1/gzexe.*
@@ -104,6 +94,12 @@ ln -sf /bin/gzip %{buildroot}%{_bindir}/gzip
 #NEWS README THANKS TODO
 
 %changelog
+* Sat Apr 24 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 1.10-4mamba
+- add legacy /bin provides
+
+* Sat Apr 24 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 1.10-3mamba
+- install binaries in %_bindir instead of /bin
+
 * Thu Nov 26 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.10-2mamba
 - added debug package