When I cpmpile corosync with dependency on librdmacm-devel, and confirm that I
've installed the this package, but configure said there was no such lib.

I checked the configure file which used pkg-config to check whether a devel
package installed or not. Then I checked the pkgconfig directory, no pc files
for the package above. And I used 'rpm -ql' to double confirm there is no pc
file in the devel package.

Here is the pc file I wrote:
prefix=/usr
exec_prefix=${prefix}
libdir=${prefix}/lib64
sharedlibdir=${libdir}
includedir=${prefix}/include

Name: rdmacm
Description: rdmacm compression library
Version: 1.0.19 

Requires:
Libs: -L${libdir} -L${sharedlibdir} -lz
Cflags: -I${includedir}