configure: check the package version when auto-detecting the VL targets
configure: check the package version when auto-detecting the VL targets

Or we might end up where automatically enable the build, only to error
out a couple of lines after that.

Cc: Christian König <c7ea837d7a46effe4232b086213468b8b31643bf@amd.com>
Signed-off-by: Emil Velikov <4c996f2f093ddd0585a556460b4cc3ba555546ef@gmail.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler