[OpenAFS] Compile failure

[Benjamin Kaduk]

On Thu, 11 Aug 2016, Ted Creedon wrote:

> compile fails again using the latest heimdal-master
> export|g -i krb
> declare -x KRB5_CONFIG="/usr/heimdal/bin/krb5-config --libs --deps"
> declare -x PATH_KRB5_CONFIG="/usr/heimdal/bin/krb5-config --libs --deps"
> ookpik:/data1/openafs-1.6.18.2 #
>
>
> configure:27910: checking for krb5-config
> configure:27941: result: /usr/heimdal/bin/krb5-config --libs --deps
> configure:29042: checking for library containing res_search
> configure:29073: gcc -o conftest  -I/usr/heimdal/include  -L/usr/heimdal/lib  conftest.c  >&5
> /tmp/cc8MEyGl.o: In function `main':
> conftest.c:(.text+0xa): undefined reference to `res_search'
> collect2: error: ld returned 1 exit status
> configure:29073: $? = 1
> configure: failed program was:
> | /* confdefs.h */
> | #define PACKAGE_NAME "OpenAFS"
> | #define PACKAGE_TARNAME "openafs"
> | #define PACKAGE_VERSION "1.6.18.2"
> | #define PACKAGE_STRING "OpenAFS 1.6.18.2"
> | #define PACKAGE_BUGREPORT ""
> | #define PACKAGE_URL ""
> | #define PACKAGE "openafs"
> | #define VERSION "1.6.18.2"
> | #define STDC_HEADERS 1


Is this the end of the configure output?  It seems that we should continue
on, checking for res_search in libdns, libnsl, and libresolv, before
continuing.


>
> ________________________________________
> From: openafs-info-admin@openafs.org <openafs-info-admin@openafs.org> on behalf of Ted Creedon <tcreedon@easystreet.net>
> Sent: Thursday, August 11, 2016 9:42:10 AM
> Cc: openafs-info@openafs.org
> Subject: Re: [OpenAFS] Compile failure
>
> Thanks
>
> whats the -ldl for in krb5-config?


libdl is for dynamic linking, e.g., dlopen() and such.  Heimdal can be
directed to load plugins via entries in a config file; dlopen() is used
for that.

-Ben



> From: Chaskiel Grundman <cg2v@andrew.cmu.edu>
> Sent: Wednesday, August 10, 2016 8:08:01 AM
> To: Benjamin Kaduk
> Cc: Ted Creedon; openafs-info@openafs.org
> Subject: Re: [OpenAFS] Compile failure
>
> I rejected ted's reply because 2MB of logs seemed excessive. Here's a
> relevant bit of the log:
>
> configure:25263: gcc -c   conftest.c >&5
> configure:25263: $? = 0
> configure:25264: result: yes
> configure:25301: checking size of long
> configure:25320: result: 8
> configure:25627: checking for krb5-config
> configure:25658: result: /usr/heimdal/bin/krb5-config
> configure:25668: checking for krb5 support in krb5-config
> configure:25679: result: yes
> configure:25695: checking for krb5_init_context
> configure:25695: gcc -o conftest  -I/usr/heimdal/include    conftest.c
> -Wl,--enable-new-dtags -Wl,-rpath -Wl,/usr/heimdal/lib64
> -L/usr/heimdal/lib64 -lkrb5  >&5
> configure:25695: $? = 0
> configure:25695: result: yes
> configure:26638: checking for krb5_get_error_message
> configure:26638: gcc -o conftest  -I/usr/heimdal/include    conftest.c
> -Wl,--enable-new-dtags -Wl,-rpath -Wl,/usr/heimdal/lib64
> -L/usr/heimdal/lib64 -lkrb5  >&5
> configure:26638: $? = 0
> configure:26638: result: yes
> configure:26645: checking for krb5_free_error_message
> configure:26645: gcc -o conftest  -I/usr/heimdal/include    conftest.c
> -Wl,--enable-new-dtags -Wl,-rpath -Wl,/usr/heimdal/lib64
> -L/usr/heimdal/lib64 -lkrb5  >&5
> configure:26645: $? = 0
> configure:26645: result: yes
>
> It suggests that krb5-config was used, but it only put -lkrb5 in
> libs.
> That's consistent with what I see on ubuntu trusty:
>
> % krb5-config.heimdal --version
> heimdal 1.6.99
> % krb5-config.heimdal --libs
> -L/usr/lib/x86_64-linux-gnu/heimdal -lkrb5
>
> It apears to get the full set of libraries, you need to add --deps:
>
> % krb5-config.heimdal --libs --deps
> -L/usr/lib/x86_64-linux-gnu/heimdal -lkrb5 -lhx509 -lcom_err -lhcrypto
> -lasn1 -lwind -lheimbase -lroken -lcrypt -pthread -lpthread -ldl -lresolv
> -pthread -lpthread
>
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