WARNING: uuid.h: present but cannot be compiled

"David E. Wheeler" <david@justatheory.com> writes:

I'm building 8.4beta1 on Mac OS X 10.5.6. I have ossp-uuid installed
with its includes in /usr/local/include/ossp-uuid.

Well, then you would need --with-includes=/usr/local/include/ossp-uuid
(don't bother setting CPPFLAGS in addition).

I guess it's finding Apple's uuid.h and not OSSP's?

Yeah, that's what it looks like, although it's odd that that fails
to compile.

regards, tom lane

On Apr 17, 2009, at 7:08 AM, Tom Lane wrote:

"David E. Wheeler" <david@justatheory.com> writes:

I'm building 8.4beta1 on Mac OS X 10.5.6. I have ossp-uuid installed
with its includes in /usr/local/include/ossp-uuid.

Well, then you would need --with-includes=/usr/local/include/ossp-uuid
(don't bother setting CPPFLAGS in addition).

Duh, I already had --with-includes for another directory. Thanks.

I guess it's finding Apple's uuid.h and not OSSP's?

Yeah, that's what it looks like, although it's odd that that fails
to compile.

Yeah, seems odd…

Best,

David

On Apr 17, 2009, at 10:21 AM, David E. Wheeler wrote:

On Apr 17, 2009, at 9:22 AM, David E. Wheeler wrote:

So does it not know to look in /usr/local/include/ossp-uuid when
it's looking for uuid.h?

Tried a few more things. No matter where I put uuid.h, configure
doesn't seem to find it. I put it in /usr/local/include and ran
configure with --with-includes=/usr/local/include and it didn't find
it. RhodiumToad said on IRC that it's looking for "ossp/uuid.h", so
I tried putting it in /usr/local/include/ossp/ and ran configure
with the same --with-include and it still didn't find it. So at this
point, I'm unable to figure out how to get configure to find and use
the OSSP uuid header. :-(

I take that back. It can find it in the ossp subdirectiry, as
RhodiumToad said, but it can't compile it:

checking ossp/uuid.h usability... no
checking ossp/uuid.h presence... yes
configure: WARNING: ossp/uuid.h: present but cannot be compiled
configure: WARNING: ossp/uuid.h: check for missing prerequisite
headers?
configure: WARNING: ossp/uuid.h: see the Autoconf documentation
configure: WARNING: ossp/uuid.h: section "Present But Cannot Be
Compiled"
configure: WARNING: ossp/uuid.h: proceeding with the preprocessor's
result
configure: WARNING: ossp/uuid.h: in the future, the compiler will take
precedence
configure: WARNING: ## ---------------------------------------- ##
configure: WARNING: ## Report this to pgsql-bugs@postgresql.org ##
configure: WARNING: ## ---------------------------------------- ##
checking for ossp/uuid.h... yes

Best,

David

On Apr 17, 2009, at 10:47 AM, David E. Wheeler wrote:

On Apr 17, 2009, at 10:21 AM, David E. Wheeler wrote:

On Apr 17, 2009, at 9:22 AM, David E. Wheeler wrote:

So does it not know to look in /usr/local/include/ossp-uuid when
it's looking for uuid.h?

Tried a few more things. No matter where I put uuid.h, configure
doesn't seem to find it. I put it in /usr/local/include and ran
configure with --with-includes=/usr/local/include and it didn't
find it. RhodiumToad said on IRC that it's looking for "ossp/
uuid.h", so I tried putting it in /usr/local/include/ossp/ and ran
configure with the same --with-include and it still didn't find it.
So at this point, I'm unable to figure out how to get configure to
find and use the OSSP uuid header. :-(

I take that back. It can find it in the ossp subdirectiry, as
RhodiumToad said, but it can't compile it:

checking ossp/uuid.h usability... no
checking ossp/uuid.h presence... yes
configure: WARNING: ossp/uuid.h: present but cannot be compiled
configure: WARNING: ossp/uuid.h: check for missing prerequisite
headers?
configure: WARNING: ossp/uuid.h: see the Autoconf documentation
configure: WARNING: ossp/uuid.h: section "Present But Cannot Be
Compiled"
configure: WARNING: ossp/uuid.h: proceeding with the preprocessor's
result
configure: WARNING: ossp/uuid.h: in the future, the compiler will
take precedence
configure: WARNING: ## ---------------------------------------- ##
configure: WARNING: ## Report this to pgsql-bugs@postgresql.org ##
configure: WARNING: ## ---------------------------------------- ##
checking for ossp/uuid.h... yes

Oh, and despite that warning, I am in fact able to build and install
the OSSP UUID contrib module. So I've no idea what that warning is
about.

Best,

David

"David E. Wheeler" <david@kineticode.com> writes:

I take that back. It can find it in the ossp subdirectiry, as
RhodiumToad said, but it can't compile it:

checking ossp/uuid.h usability... no
checking ossp/uuid.h presence... yes
configure: WARNING: ossp/uuid.h: present but cannot be compiled

Why not? There should be compiler messages in config.log.

regards, tom lane

On Apr 17, 2009, at 11:08 AM, Tom Lane wrote:

"David E. Wheeler" <david@kineticode.com> writes:

I take that back. It can find it in the ossp subdirectiry, as
RhodiumToad said, but it can't compile it:

checking ossp/uuid.h usability... no
checking ossp/uuid.h presence... yes
configure: WARNING: ossp/uuid.h: present but cannot be compiled

Why not? There should be compiler messages in config.log.

Dunno. Here's the log for the latest build:

David E. Wheeler wrote:

On Apr 17, 2009, at 11:08 AM, Tom Lane wrote:

"David E. Wheeler" <david@kineticode.com> writes:

I take that back. It can find it in the ossp subdirectiry, as
RhodiumToad said, but it can't compile it:

checking ossp/uuid.h usability... no
checking ossp/uuid.h presence... yes
configure: WARNING: ossp/uuid.h: present but cannot be compiled

Why not? There should be compiler messages in config.log.

Dunno. Here's the log for the latest build:

configure:13224: checking ossp/uuid.h usability
configure:13241: gcc -no-cpp-precomp -c -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/include/libxml2 -I/usr/local/include conftest.c >&5
In file included from conftest.c:98:
/usr/local/include/ossp/uuid.h:94: error: conflicting types for 'uuid_t'
/usr/include/unistd.h:133: error: previous declaration of 'uuid_t' was here

--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

On Apr 17, 2009, at 11:28 AM, Alvaro Herrera wrote:

Dunno. Here's the log for the latest build:

configure:13224: checking ossp/uuid.h usability
configure:13241: gcc -no-cpp-precomp -c -O2 -Wall -Wmissing-
prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-
labels -fno-strict-aliasing -fwrapv -I/usr/local/include/libxml2 -
I/usr/local/include conftest.c >&5
In file included from conftest.c:98:
/usr/local/include/ossp/uuid.h:94: error: conflicting types for
'uuid_t'
/usr/include/unistd.h:133: error: previous declaration of 'uuid_t'
was here

Oh, that old canard. So it's just http://cvs.ossp.org/tktview?tn=164
again.

Thanks,

David