Sun Studio linking issues in Solaris 9

[David Halik]

I bounced this off of the courier mailing list, since that was what I 
was building at the time, but one of the developers named Sam asked that 
I go here since his Makefile.in has libtool generated parts that are 
what I'm having an issue with. Anyways, to the meat of the problem....

I ran into this when building courier-authlib 0.60.2 in Solaris 9 with 
Sun Studio, the Makefile attempts to link with the required libraries 
before knowing where to go for them. See below:

/bin/bash ./libtool --tag=CC   --mode=link cc  -I.. -I./.. -module 
-rpath /usr/local/lib/courier-authlib -export-symbols-regex 
'courier_auth.*_init' -lldap -llber -lresolv  -lsocket -lnsl 
-L/usr/local/ssl/lib -R/usr/local/ssl/lib -L/usr/local/lib 
-R/usr/local/lib -L/usr/local/lib/courier-authlib 
-R/usr/local/lib/courier-authlib -o libauthldap.la  authldap.lo 
preauthldap.lo authldaplib.lo libcourierauthcommon.la
generating symbol list for `libauthldap.la'
/usr/ccs/bin/nm -p  .libs/authldap.o .libs/preauthldap.o 
.libs/authldaplib.o  | sed -n -e 's/^.*[       ]\([BDRT][BDRT]*\)[     
][      ]*\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2 \2/p' | /usr/local/bin/sed 
's/.* //' | sort | uniq > .libs/libauthldap.exp
/usr/local/gnu/bin/grep -E -e "courier_auth.*_init" 
".libs/libauthldap.exp" > ".libs/libauthldap.expT"
mv -f ".libs/libauthldap.expT" ".libs/libauthldap.exp"
echo "{ global:" > .libs/libauthldap.so.0.0.0.exp
cat .libs/libauthldap.exp | /usr/local/bin/sed -e "s/\(.*\)/\1;/" >> 
.libs/libauthldap.so.0.0.0.exp
echo "local: *; };" >> .libs/libauthldap.so.0.0.0.exp
/usr/ccs/bin/ld -G -M .libs/libauthldap.so.0.0.0.exp -h libauthldap.so.0 
-o .libs/libauthldap.so.0.0.0  .libs/authldap.o .libs/preauthldap.o 
.libs/authldaplib.o  
-R/usr/local/src/rpm-packages/BUILD/courier-authlib-0.60.2/.libs 
-R/usr/local/lib/courier-authlib -R/usr/local/ssl/lib -R/usr/local/lib 
-L/usr/local/src/rpm-packages/BUILD/courier-authlib-0.60.2/.libs -lldap 
-llber -lresolv -lsocket -lnsl -L/usr/local/ssl/lib -L/usr/local/lib 
-L/usr/local/lib/courier-authlib ./.libs/libcourierauthcommon.so -lc
ld: fatal: library -llber: not found
ld: fatal: File processing errors. No output written to 
.libs/libauthldap.so.0.0.0

The problem lies in the fact that the autoresolved -l dependencies are 
put down before the user added -L/-R paths are specified. Initially this 
is given to the libtool argument and then passed automatically with 
libtool on to Sun LD, which chokes. Adding $LDFLAGS before the 
automatically generated libs solves the problem. I've attached a patch 
below that switches the order, but there might be a "more correct" way 
to fix this with libtool dependency generation. All the patch does is 
switch the order libtool receives the arguments, and of course spits 
them back out to LD. As long as LDFLAGS is added after the internal 
linkage there will never be a match since it doesn't yet know where to 
look. I was assuming this is a courier problem, but the developer Sam 
says this Makefile.in configuration generated through libtool.

diff -ruN courier-authlib-0.60.2/Makefile.in 
courier-authlib-0.60.2.new/Makefile.in
--- courier-authlib-0.60.2/Makefile.in  2007-10-13 20:20:08.000000000 -0400
+++ courier-authlib-0.60.2.new/Makefile.in      2007-11-08 
15:34:48.537428000 -0500
@@ -92,7 +92,7 @@
libauthldap_la_OBJECTS = $(am_libauthldap_la_OBJECTS)
libauthldap_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
      $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
-       $(libauthldap_la_LDFLAGS) $(LDFLAGS) -o $@
+       $(LDFLAGS) $(libauthldap_la_LDFLAGS) -o $@
am_libauthmysql_la_OBJECTS = authmysql.lo preauthmysql.lo \
      authmysqllib.lo
libauthmysql_la_OBJECTS = $(am_libauthmysql_la_OBJECTS)


Thanks,
-Dave

--
================================
David Halik
Student Programmer
OSS/NBCS - OIT Rutgers
address@hidden
================================