I'm trying to work on postgresql locally with ubuntu 10.04. I get this error after I configure with
./configure --enable-cassert --enable-debug --prefix=$HOME/pgsql
when I make && make install I get this error:
make -C parser all
make[3]: Entering directory `/home/james/school/db/pg-stuff/hw1/postgresql-8.4.2/src/backend/parser'
ERROR: `flex' is missing on your system. It is needed to create the
file `scan.c'. You can either get flex from a GNU mirror site
or download an official distribution of PostgreSQL, which contains
pre-packaged flex output.
make[3]: *** [scan.c] Error 1
make[3]: Leaving directory `/home/james/school/db/pg-stuff/hw1/postgresql-8.4.2/src/backend/parser'
make[2]: *** [parser-recursive] Error 2
make[2]: Leaving directory `/home/james/school/db/pg-stuff/hw1/postgresql-8.4.2/src/backend'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/james/school/db/pg-stuff/hw1/postgresql-8.4.2/src'
make: *** [all] Error 2
I tried to
apt-get install flex but I get the same error. How can I install flex so that this will work?