Fail to install postgres gem

Ruby
1

Good day!
I have problems installing postgres gem.
It seems that gem cannot find my PostgreSQL installation.
Please tell me what options can I give to gem. Gem manual doesn’t help.

I’m getting the following:

ERROR: While executing gem … (Gem::Installer::ExtensionBuildError)
ERROR: Failed to build gem native extension.

ruby extconf.rb install postgres
checking for cygwin32_socket() in -lwsock32… no
checking for socket() in -lsocket… no
checking for gethostbyname() in -linet… no
checking for gethostbyname() in -lnsl… no
checking for sys/un.h… yes
checking for socket()… yes
checking for hsterror()… no
checking for gethostname()… yes
checking for PQsetdbLogin() in -lpq… no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.

Provided configuration options:
–with-opt-dir
–without-opt-dir
–with-opt-include
–without-opt-include=${opt-dir}/include
–with-opt-lib
–without-opt-lib=${opt-dir}/lib
–with-make-prog
–without-make-prog
–srcdir=.
–curdir
–ruby=/usr/local/bin/ruby
–with-pgsql-dir
–without-pgsql-dir
–with-pgsql-include
–without-pgsql-include=${pgsql-dir}/include
–with-pgsql-lib
–without-pgsql-lib=${pgsql-dir}/lib
–with-wsock32lib
–without-wsock32lib
–with-socketlib
–without-socketlib
–with-inetlib
–without-inetlib
–with-nsllib
–without-nsllib
–with-pgsql-include-dir
–without-pgsql-include-dir
–with-pgsql-lib-dir
–without-pgsql-lib-dir
–with-pqlib
–without-pqlib
Could not find PostgreSQL libraries: Makefile not created

Gem files will remain installed in
/usr/local/lib/ruby/gems/1.8/gems/postgres-0.7.1 for inspection.
Results logged to
/usr/local/lib/ruby/gems/1.8/gems/postgres-0.7.1/gem_make.out

Yours sincerely,
Damian/Three-eyed Fish

2

i usually install this from source (not as a gem) - this way i can
specify where the postgresql header files and libraries live (i usually
also build the postgresql from source).

just download the source from http://ruby.scripting.ca/postgres/ and
follow the instructions in README file.

hope this helps,

vlad

3

On Sat, 2007-02-03 at 23:55 +0900, Damian T. wrote:

Gem files will remain installed in
/usr/local/lib/ruby/gems/1.8/gems/postgres-0.7.1 for inspection.

Hm, seems like it’s not finding the PostgreSQL header and object files.
You can probably get it to work by moving into that directory
(/usr/local/lib/ruby/gems/1.8/gems/postgres-0.7.1) and running:

ruby extconf.rb --with-pgsql-include-dir=/path/to/pgsql/headers
–with-pgsql-lib-dir=/path/to/pgsql/shared_libs

and then run “make” and “make install”.

Yours,

Tom

4

On 2/4/07, Tom C. [email protected] wrote:

and then run “make” and “make install”.

You can also achieve the same thing in one step with gem by passing
the extconf args after ‘–’:

gem install postgres – --with-pgsql-include-dir=…

5

On Sun, 2007-02-04 at 02:43 +0900, Damian T. wrote:

Tom

Thank you so much!
Worked.

Super! The same thing happened to me with the MySQL gem yesterday, so
it’s fresh in my mind…

Yours,

tom

6

On Feb 3, 2007, at 20:00, Tom C. wrote:

and then run “make” and “make install”.

Yours,

Tom

Thank you so much!
Worked.

Yours sincerely,
Damian/Three-eyed Fish