[asterisk-users] Wierd error when compiling 1.6.2 branch from SVN

[Richard Kenner]

I did a usual "svn update", "./configure" and "make" and got

   [CC] chan_oss.c -> chan_oss.o
gcc: @SDL_INCLUDE@: No such file or directory

I don't see any changes to chan_oss recently, so don't understand this.
What could be going on?