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libpq++ compiling errors...

From: "isaac flemmin" <isaac(at)knox(dot)net>
To: <pgsql-interfaces(at)postgresql(dot)org>
Subject: libpq++ compiling errors...
Date: 2002-01-30 00:53:07
Message-ID: 000001c1a928$7bfe8bb0$dcad2204@ixic (view raw, whole thread or download thread mbox)
Lists: pgsql-interfaces
Hello again,


Okay, now that I have some time to concentrate on getting programs using
the libpq and/or libpq++ to compile I will try this message again. I am
using PostgreSQL 7.1.3, glibc-2.2.4-19.3 and gcc-2.96-85. Any time I try
to compile a program that uses the libpq or the libpq++ headers or
libraries i get errors. When I installed PostgreSQL i used both make
install, and make install-all-headers to ensure that all the header
files were copied to the system and I did both the commands as root. I
have included some of the output I get when I try compiling different


The first example is when I try to run make in the libpq++/examples




g++  -I/usr/local/pgsql/include -o testlibpq0
-L/usr/local/pgsql/lib -lpq++

In file included from

../libpq++.h:27:34: libpq++/pgconnection.h: No such file or directory

../libpq++.h:28:32: libpq++/pgdatabase.h: No such file or directory

../libpq++.h:29:31: libpq++/pglobject.h: No such file or directory

../libpq++.h:30:31: libpq++/pgtransdb.h: No such file or directory

../libpq++.h:31:32: libpq++/pgcursordb.h: No such file or directory

make: *** [testlibpq0] Error 1


The second set of errors is after I manually copy the libpq++ header
file dir to /usr/local/pgsql/include/ and try to run make again. I am
not sure why but the command "make install-all-headers" did not put the
libpq++ headers into the pgsql/include. If anyone has any reasons why
this might be I would be more than happy to learn.


g++  -I/usr/local/pgsql/include -o testlibpq0
-L/usr/local/pgsql/lib -lpq++

In file included from ../libpq++.h:27,


/usr/local/pgsql/include/libpq++/pgconnection.h:85: syntax error before

In file included from ../libpq++.h:29,


/usr/local/pgsql/include/libpq++/pglobject.h:36: syntax error before `;'

/usr/local/pgsql/include/libpq++/pglobject.h:55: syntax error before `('

In file included from ../libpq++.h:31,


/usr/local/pgsql/include/libpq++/pgcursordb.h:47: parse error before `&'

/usr/local/pgsql/include/libpq++/pgcursordb.h:54: parse error before `&'

/usr/local/pgsql/include/libpq++/pgcursordb.h:57: parse error before `&'

/usr/local/pgsql/include/libpq++/pgcursordb.h:60: syntax error before

/usr/local/pgsql/include/libpq++/pgcursordb.h: In method `const char
*PgCursor::Cursor () const':

/usr/local/pgsql/include/libpq++/pgcursordb.h:53: `pgCursor' undeclared
(first use this function)

/usr/local/pgsql/include/libpq++/pgcursordb.h:53: (Each undeclared
identifier is reported only once for

each function it appears in.)

/usr/local/pgsql/include/libpq++/pgcursordb.h: In method `void
PgCursor::Cursor (...)':

/usr/local/pgsql/include/libpq++/pgcursordb.h:54: `cursor' undeclared
(first use this function) In function `int main ()': `string' undeclared (first use this function) parse error before `;' `buf' undeclared (first use this function) `getline' undeclared (first use this function)


I could give many more examples where I try linking in or including the
libraries by hand, etc...but it all comes out basically the same way. I
get one of two types of errors, either it cannot fine the included
header files, or it lists errors from them. That is just the libpq++. I
will now move on to my dealings with libpq, which are much the same.


This is an example when i try to make in the src/test/examples


gcc  -Wl,-rpath,/usr/local/pgsql/lib  testlibpq.o   -o testlibpq

testlibpq.o: In function `main':

testlibpq.o(.text+0x1c): undefined reference to `PQsetdbLogin'

testlibpq.o(.text+0x28): undefined reference to `PQstatus'

testlibpq.o(.text+0x4c): undefined reference to `PQerrorMessage'

testlibpq.o(.text+0x6b): undefined reference to `PQfinish'

testlibpq.o(.text+0x8d): undefined reference to `PQexec'

testlibpq.o(.text+0x97): undefined reference to `PQresultStatus'

testlibpq.o(.text+0xb9): undefined reference to `PQclear'

testlibpq.o(.text+0xc3): undefined reference to `PQfinish'

testlibpq.o(.text+0xd8): undefined reference to `PQclear'

testlibpq.o(.text+0xe8): undefined reference to `PQexec'

testlibpq.o(.text+0xf2): undefined reference to `PQresultStatus'

testlibpq.o(.text+0x114): undefined reference to `PQclear'

testlibpq.o(.text+0x11e): undefined reference to `PQfinish'

testlibpq.o(.text+0x135): undefined reference to `PQclear'

testlibpq.o(.text+0x145): undefined reference to `PQexec'

testlibpq.o(.text+0x14f): undefined reference to `PQresultStatus'

testlibpq.o(.text+0x173): undefined reference to `PQclear'

testlibpq.o(.text+0x17d): undefined reference to `PQfinish'

testlibpq.o(.text+0x197): undefined reference to `PQnfields'

testlibpq.o(.text+0x1c8): undefined reference to `PQfname'

testlibpq.o(.text+0x1e8): undefined reference to `PQfname'

testlibpq.o(.text+0x209): undefined reference to `PQfname'

testlibpq.o(.text+0x222): undefined reference to `PQfname'

testlibpq.o(.text+0x23b): undefined reference to `PQfname'

testlibpq.o(.text+0x257): more undefined references to `PQfname' follow

testlibpq.o: In function `main':

testlibpq.o(.text+0x2b3): undefined reference to `PQgetvalue'

testlibpq.o(.text+0x2d0): undefined reference to `PQgetvalue'

testlibpq.o(.text+0x2f7): undefined reference to `PQgetvalue'

testlibpq.o(.text+0x313): undefined reference to `PQgetvalue'

testlibpq.o(.text+0x32f): undefined reference to `PQgetvalue'

testlibpq.o(.text+0x34e): more undefined references to `PQgetvalue'

testlibpq.o: In function `main':

testlibpq.o(.text+0x37e): undefined reference to `PQntuples'

testlibpq.o(.text+0x392): undefined reference to `PQclear'

testlibpq.o(.text+0x3a2): undefined reference to `PQexec'

testlibpq.o(.text+0x3ac): undefined reference to `PQclear'

testlibpq.o(.text+0x3bc): undefined reference to `PQexec'

testlibpq.o(.text+0x3c6): undefined reference to `PQclear'

testlibpq.o(.text+0x3d0): undefined reference to `PQfinish'

collect2: ld returned 1 exit status

make: *** [testlibpq] Error 1


I have not actually tried to write any programs myself because I cannot
even get the example programs to compile so I do not see the point. If
anyone has any idea what might be going wrong, or what I may not be
understanding correctly I would be very grateful for your help. Even if
it turns out I'm just being stupid and missing something, I don't mind
finding that out. I just want to be able to compile programs that use
either the libpq or the libpq++.





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