1 2Wrapping the jpeg support library for tcl is a bit more complicated 3than libz, or libpng. 4 5(1) libjpeg comes with its own configure command, and there is no 6 configure.ac. This means that it is not possible to lift the 7 relevant sections out of it for the configure of the 8 binding. Instead the binding run the configure of libjpeg 9 (AC_CONFIG_SUBDIRS) from its own configure and uses the 10 resulting header file (jconfig.h) as usual. A quirk is that 11 the tcl binding is a subdirectory of libjpeg, but to be able 12 to perform the previous operation its has to be the other way 13 around (AC_CONFIG_SUBDIRS is unable to handle '..' 14 correctly). To facility this I placed a symbolic link into the 15 directory of the binding, refering to the parent under the 16 name libjpeg. 17 18(2) A second trouble spot is described in the file 'DANGER'. 19