It worked …yeaaaaaaa 
GOT: kernel-release-headers-4.15.15-1-omv2015.0.x86_64
GOT: kernel-rc-headers-4.6.0-0.rc7.1-omv2015.0.x86_64
In order to satisfy the ‘kernel-headers’ dependency, one of the following packages is needed:
1- kernel-release-headers-4.15.15-1-omv2015.0.x86_64: Linux kernel header files mostly used by your C library (to install)
2- kernel-rc-headers-4.6.0-0.rc7.1-omv2015.0.x86_64: Linux kernel header files mostly used by your C library (to install)
What is your choice? (1-2) 1
To satisfy dependencies, the following packages are going to be installed:
Package Version Release Dist DEpoch Arch
(medium “main updates”)
glibc-devel 2.27 9 omv 2015.0 x86_64
kernel-release-headers 4.15.15 1 omv 2015.0 x86_64
(medium “contrib”)
task 2.1.2 2 omv 2015.0 x86_64
10MB of additional disk space will be used.
2.9MB of packages will be retrieved.
Proceed with the installation of the 3 packages? (Y/n) y
http://downloads.openmandriva.org/mirrors/openmandriva.3.0.x86_64.list: media/main/updates/kernel-release-headers-4.15.15-1-omv2015.0.x86_64.rpm
http://downloads.openmandriva.org/mirrors/openmandriva.3.0.x86_64.list: media/main/updates/glibc-devel-2.27-9-omv2015.0.x86_64.rpm
http://downloads.openmandriva.org/mirrors/openmandriva.3.0.x86_64.list: media/contrib/release/task-2.1.2-2-omv2015.0.x86_64.rpm
installing glibc-devel-2.27-9-omv2015.0.x86_64.rpm task-2.1.2-2-omv2015.0.x86_64.rpm kernel-release-headers-4.15.15-1-omv2015.0.x86_64.rpm from /var/cache/urpmi/rpms
Preparing… ####################################################################################
1/3: task ####################################################################################
2/3: glibc-devel ####################################################################################
3/3: kernel-release-headers
####################################################################################
gcc is now compiling …!!!
thanks for your suggestion Ben …
that command returned " no package found devel"
but then I tried it with glibc-devel and it worked …I could not find a glibc-devel when using rpmdrake earlier that was my first line of thinking …but anywho …this worked .