Hi All, During the make step of python, I am encountering a weird error. This is on AIX 5.3 using gcc as the compiler. My configuration options are as follows ./configure --enable-shared --disable-ipv6 --with-gcc=gcc CPPFLAGS="-I /opt/freeware/include -I /opt/freeware/include/readline -I /opt/freeware/include/ncurses" LDFLAGS="-L. -L/usr/local/lib" Below is the transcript from the make step. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ running build running build_ext ldd: /lib/libreadline.a: File is an archive. INFO: Can't locate Tcl/Tk libs and/or headers building '_struct' extension gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I. -I/u01/home/apli/wm/GDD/Python-2.6.6/./Include -I. -IInclude -I./Include -I/opt/freeware/include -I/opt/freeware/include/readline -I/opt/freeware/include/ncurses -I/usr/local/include -I/u01/home/apli/wm/GDD/Python-2.6.6/Include -I/u01/home/apli/wm/GDD/Python-2.6.6 -c /u01/home/apli/wm/GDD/Python-2.6.6/Modules/_struct.c -o build/temp.aix-5.3-2.6/u01/home/apli/wm/GDD/Python-2.6.6/Modules/_struct.o ./Modules/ld_so_aix gcc -pthread -bI:Modules/python.exp -L. -L/usr/local/lib build/temp.aix-5.3-2.6/u01/home/apli/wm/GDD/Python-2.6.6/Modules/_struct.o -L. -L/usr/local/lib -lpython2.6 -o build/lib.aix-5.3-2.6/_struct.so *Fatal Python error: Interpreter not initialized (version mismatch?)* *make: 1254-059 The signal code from the last command is 6.* ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The last command that i see above (ld_so_aix) seems to have completed as the file _struct.so exists after this command and hence I am not sure which step is failing. There is no other Python version on my machine. Please guide.