From: theLemcke <sixtimesnine@...>
Date: 2011-03-01T02:30:21+09:00
Subject: Re: Trying to install pg on 32bit Snow Leopard 10.6

On Feb 28, 9:16 am, theLemcke <sixtimesn...@gmail.com> wrote:
> I'm trying to install the "pg" gem on 32-bit snow leopard and I'm
> encountering the following error:
>
> $ sudo env ARCHFLAGS="-arch i386" gem install pg -v=0.9.0
> Building native extensions.  This could take a while...
> ERROR:  Error installing pg:
>         ERROR: Failed to build gem native extension.
>
> /opt/local/bin/ruby extconf.rb
> checking for pg_config... yes
> MacOS X build: fixing architecture flags:
>   using the value in ARCHFLAGS environment variable ("-arch i386").
> checking for libpq-fe.h... yes
> checking for libpq/libpq-fs.h... yes
> checking for PQconnectdb() in -lpq... no
> checking for PQconnectdb() in -llibpq... no
> checking for PQconnectdb() in -lms/libpq... no
> Can't find the PostgreSQL client library (libpq)
> *** 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
>         --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=/opt/local/bin/ruby
>         --with-pg
>         --without-pg
>         --with-pg-config
>         --without-pg-config
>         --with-pg-dir
>         --without-pg-dir
>         --with-pg-include
>         --without-pg-include=${pg-dir}/include
>         --with-pg-lib
>         --without-pg-lib=${pg-dir}/lib
>         --enable-static-build
>         --disable-static-build
>         --with-pqlib
>         --without-pqlib
>         --with-libpqlib
>         --without-libpqlib
>         --with-ms/libpqlib
>         --without-ms/libpqlib
>
> Any suggestions or help?

Mkmf.log file for reference:


find_executable: checking for pg_config... -------------------- yes

--------------------

have_header: checking for libpq-fe.h... -------------------- yes

"/usr/bin/gcc-4.2 -E -I. -I/opt/local/lib/ruby/1.8/i686-darwin10 -I. -
I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -I/opt/local/
include -I/opt/local/include/postgresql84 -pipe -O2  -fno-common -pipe
-fno-common   -arch i386  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include <libpq-fe.h>
/* end */

--------------------

have_header: checking for libpq/libpq-fs.h... -------------------- yes

"/usr/bin/gcc-4.2 -E -I. -I/opt/local/lib/ruby/1.8/i686-darwin10 -I. -
I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -I/opt/local/
include -I/opt/local/include/postgresql84 -pipe -O2  -fno-common -pipe
-fno-common   -arch i386  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include <libpq/libpq-fs.h>
/* end */

--------------------

have_library: checking for PQconnectdb() in -lpq...
-------------------- no

"/usr/bin/gcc-4.2 -o conftest -I. -I/opt/local/lib/ruby/1.8/i686-
darwin10 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -
I/opt/local/include -I/opt/local/include/postgresql84 -pipe -O2  -fno-
common -pipe -fno-common   -arch i386 conftest.c  -L. -L/opt/local/lib
-L/opt/local/lib -L. -L/opt/local/lib -L/opt/local/lib/postgresql84 -
arch i386  -arch i386   -lruby-static -lpq  -lpthread -ldl -lobjc  "
conftest.c: In function ‘t’:
conftest.c:3: error: ‘PQconnectdb’ undeclared (first use in this
function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void ((*)()))PQconnectdb;
return 0; }
/* end */

"/usr/bin/gcc-4.2 -o conftest -I. -I/opt/local/lib/ruby/1.8/i686-
darwin10 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -
I/opt/local/include -I/opt/local/include/postgresql84 -pipe -O2  -fno-
common -pipe -fno-common   -arch i386 conftest.c  -L. -L/opt/local/lib
-L/opt/local/lib -L. -L/opt/local/lib -L/opt/local/lib/postgresql84 -
arch i386  -arch i386   -lruby-static -lpq  -lpthread -ldl -lobjc  "
ld: warning: in /opt/local/lib/postgresql84/libpq.dylib, file was
built for unsupported file format which is not the architecture being
linked (i386)
Undefined symbols:
  "_PQconnectdb", referenced from:
      _t in ccNZOcje.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { PQconnectdb(); return 0; }
/* end */

"/usr/bin/gcc-4.2 -o conftest -I. -I/opt/local/lib/ruby/1.8/i686-
darwin10 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -
I/opt/local/include -I/opt/local/include/postgresql84 -pipe -O2  -fno-
common -pipe -fno-common   -arch i386 conftest.c  -L. -L/opt/local/lib
-L/opt/local/lib -L. -L/opt/local/lib -L/opt/local/lib/postgresql84 -
arch i386  -arch i386   -lruby-static -lpq  -lpthread -ldl -lobjc  "
ld: warning: in /opt/local/lib/postgresql84/libpq.dylib, file was
built for unsupported file format which is not the architecture being
linked (i386)
Undefined symbols:
  "_PQconnectdb", referenced from:
      _t in ccJOW4Il.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: int PQconnectdb();
2: /*top*/
3: /*
4:  * http://trac.macports.org/ticket/3604
5:  * gcc 4.0 on 10.4 has a problem
6:  */
7: int main() { return 0; }
8: int t() { PQconnectdb(); return 0; }
/* end */

--------------------

have_library: checking for PQconnectdb() in -llibpq...
-------------------- no

"/usr/bin/gcc-4.2 -o conftest -I. -I/opt/local/lib/ruby/1.8/i686-
darwin10 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -
I/opt/local/include -I/opt/local/include/postgresql84 -pipe -O2  -fno-
common -pipe -fno-common   -arch i386 conftest.c  -L. -L/opt/local/lib
-L/opt/local/lib -L. -L/opt/local/lib -L/opt/local/lib/postgresql84 -
arch i386  -arch i386   -lruby-static -llibpq  -lpthread -ldl -lobjc
"
conftest.c: In function ‘t’:
conftest.c:3: error: ‘PQconnectdb’ undeclared (first use in this
function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void ((*)()))PQconnectdb;
return 0; }
/* end */

"/usr/bin/gcc-4.2 -o conftest -I. -I/opt/local/lib/ruby/1.8/i686-
darwin10 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -
I/opt/local/include -I/opt/local/include/postgresql84 -pipe -O2  -fno-
common -pipe -fno-common   -arch i386 conftest.c  -L. -L/opt/local/lib
-L/opt/local/lib -L. -L/opt/local/lib -L/opt/local/lib/postgresql84 -
arch i386  -arch i386   -lruby-static -llibpq  -lpthread -ldl -lobjc
"
ld: library not found for -llibpq
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { PQconnectdb(); return 0; }
/* end */

"/usr/bin/gcc-4.2 -o conftest -I. -I/opt/local/lib/ruby/1.8/i686-
darwin10 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -
I/opt/local/include -I/opt/local/include/postgresql84 -pipe -O2  -fno-
common -pipe -fno-common   -arch i386 conftest.c  -L. -L/opt/local/lib
-L/opt/local/lib -L. -L/opt/local/lib -L/opt/local/lib/postgresql84 -
arch i386  -arch i386   -lruby-static -llibpq  -lpthread -ldl -lobjc
"
ld: library not found for -llibpq
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: int PQconnectdb();
2: /*top*/
3: /*
4:  * http://trac.macports.org/ticket/3604
5:  * gcc 4.0 on 10.4 has a problem
6:  */
7: int main() { return 0; }
8: int t() { PQconnectdb(); return 0; }
/* end */

--------------------

have_library: checking for PQconnectdb() in -lms/libpq...
-------------------- no

"/usr/bin/gcc-4.2 -o conftest -I. -I/opt/local/lib/ruby/1.8/i686-
darwin10 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -
I/opt/local/include -I/opt/local/include/postgresql84 -pipe -O2  -fno-
common -pipe -fno-common   -arch i386 conftest.c  -L. -L/opt/local/lib
-L/opt/local/lib -L. -L/opt/local/lib -L/opt/local/lib/postgresql84 -
arch i386  -arch i386   -lruby-static -lms/libpq  -lpthread -ldl -
lobjc  "
conftest.c: In function ‘t’:
conftest.c:3: error: ‘PQconnectdb’ undeclared (first use in this
function)
conftest.c:3: error: (Each undeclared identifier is reported only once
conftest.c:3: error: for each function it appears in.)
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void ((*)()))PQconnectdb;
return 0; }
/* end */

"/usr/bin/gcc-4.2 -o conftest -I. -I/opt/local/lib/ruby/1.8/i686-
darwin10 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -
I/opt/local/include -I/opt/local/include/postgresql84 -pipe -O2  -fno-
common -pipe -fno-common   -arch i386 conftest.c  -L. -L/opt/local/lib
-L/opt/local/lib -L. -L/opt/local/lib -L/opt/local/lib/postgresql84 -
arch i386  -arch i386   -lruby-static -lms/libpq  -lpthread -ldl -
lobjc  "
ld: library not found for -lms/libpq
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { PQconnectdb(); return 0; }
/* end */

"/usr/bin/gcc-4.2 -o conftest -I. -I/opt/local/lib/ruby/1.8/i686-
darwin10 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -
I/opt/local/include -I/opt/local/include/postgresql84 -pipe -O2  -fno-
common -pipe -fno-common   -arch i386 conftest.c  -L. -L/opt/local/lib
-L/opt/local/lib -L. -L/opt/local/lib -L/opt/local/lib/postgresql84 -
arch i386  -arch i386   -lruby-static -lms/libpq  -lpthread -ldl -
lobjc  "
ld: library not found for -lms/libpq
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: int PQconnectdb();
2: /*top*/
3: /*
4:  * http://trac.macports.org/ticket/3604
5:  * gcc 4.0 on 10.4 has a problem
6:  */
7: int main() { return 0; }
8: int t() { PQconnectdb(); return 0; }
/* end */

--------------------