use of shrext_cmds on mac os x

[Vincent Torri]

Hey,

on mac os x, shrext_cmds is defined like that:

shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'

i want to use it in AC_DEFINE_UNQUOTED like that :

AC_DEFINE_UNQUOTED(SHARED_LIB_SUFFIX, "$shrext_cmds", [Suffix for shared 
objects])

how do i get its value in a cross platform way ?

thank you

Vincent Torri