diff --git a/baselibs.conf b/baselibs.conf
index 002e1b3..84b1ea0 100644
--- a/baselibs.conf
+++ b/baselibs.conf
@@ -1,4 +1,9 @@
 libjpeg8
 libjpeg8-devel
+ conflicts "jpeg-devel-<targettype>"
+ provides "jpeg-devel-<targettype>"
 libjpeg62
 libjpeg62-devel
+ conflicts "jpeg-devel-<targettype>"
+ provides "jpeg-devel-<targettype>"
+
diff --git a/libjpeg-turbo.spec b/libjpeg-turbo.spec
index 1413f7f..a19281a 100644
--- a/libjpeg-turbo.spec
+++ b/libjpeg-turbo.spec
@@ -22,7 +22,6 @@
 %define srcver  1.2.1
 %define libver  %{major}.%{minor}.%{micro}
 # major number of library from jpeg8
-%define cmajor  8
 
 Name:           libjpeg-turbo
 Version:        %{srcver}
@@ -74,9 +73,7 @@ Group:          Development/Libraries/C and C++
 Requires:       libjpeg%{major} = %{version}
 Provides:       libjpeg-devel = %{version}
 Obsoletes:      libjpeg-devel < %{version}
-%if "%{major}" != "%{cmajor}"
-Conflicts:      libjpeg%{cmajor}-devel
-%endif
+Conflicts:      otherproviders(libjpeg-devel)
 # bug437293
 %ifarch ppc64
 Obsoletes:      libjpeg-devel-64bit < %{version}
diff --git a/libjpeg62-turbo.spec b/libjpeg62-turbo.spec
index 672d1e7..67d7e53 100644
--- a/libjpeg62-turbo.spec
+++ b/libjpeg62-turbo.spec
@@ -21,8 +21,6 @@
 %define micro   0
 %define srcver  1.2.1
 %define libver  %{major}.%{minor}.%{micro}
-# major number of library from jpeg8
-%define cmajor  8
 
 Name:           libjpeg62-turbo
 Version:        %{srcver}
@@ -74,9 +72,7 @@ Group:          Development/Libraries/C and C++
 Requires:       libjpeg%{major} = %{version}
 Provides:       libjpeg-devel = %{version}
 Obsoletes:      libjpeg-devel < %{version}
-%if "%{major}" != "%{cmajor}"
-Conflicts:      libjpeg%{cmajor}-devel
-%endif
+Conflicts:      otherproviders(libjpeg-devel)
 # bug437293
 %ifarch ppc64
 Obsoletes:      libjpeg-devel-64bit < %{version}