[Brlcad-tracker] [ brlcad-Bugs-1167758 ] SuSE 9.1 linux make fails - pthread problem

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Bugs item #1167758, was opened at 2005-03-21 17:59
Message generated for change (Comment added) made by brlcad
You can respond by visiting: 
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Category: Compilation
Group: serious bug / no workaround
Status: Open
Resolution: None
Priority: 5
Submitted By: Stefan (stefpa)
Assigned to: Sean Morrison (brlcad)
Summary: SuSE 9.1 linux make fails - pthread problem

Initial Comment:
Building out of CVS fails with attached error messages. 
 
Q: Where is the correct place to add the library link? 
 
And are there other things to do when building on a linux box? 
 
 
Thanks in advance for any hint, 
 
/Stefan 
 
 
 
Making all in librt 
make[2]: Entering directory `/usr/local/src/brlcad/src/librt' 
make  all-am 
make[3]: Entering directory `/usr/local/src/brlcad/src/librt' 
/bin/sh ../../libtool --mode=link gcc  -pipe -fno-strict-aliasing 
-fno-common -fPIC -g  -L/usr/X11R6/lib -pipe -fno-strict-aliasing 
-fno-common -fPIC -g -o comb  comb.o 
librt.la ../../src/libbu/libbu.la 
gcc -pipe -fno-strict-aliasing -fno-common -fPIC -g -pipe 
-fno-strict-aliasing -fno-common -fPIC -g -o .libs/comb comb.o  
-L/usr/X11R6/lib ./.libs/librt.so /sc/brlcad/src/libbn/.libs/libbn.so /sc/brlcad/src/libbu/.libs/libbu.so ../../src/libbu/.libs/libbu.so /sc/brlcad/src/other/libtcl/.libs/libtcl8.4.so 
-ldl -lnsl -lz -lm -Wl,--rpath -Wl,/usr/brlcad/lib 
/sc/brlcad/src/libbu/.libs/libbu.so: undefined reference to 
`pthread_create' 
/sc/brlcad/src/libbu/.libs/libbu.so: undefined reference to 
`pthread_attr_setstacksize' 
/sc/brlcad/src/libbu/.libs/libbu.so: undefined reference to 
`pthread_join' 
collect2: ld returned 1 exit status 
make[3]: *** [comb] Fehler 1 
 

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>Comment By: Sean Morrison (brlcad)
Date: 2005-03-28 18:39

Message:
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user_id=785737

LIBS is supposed to be empty.  Whether LIBTHREAD is set to anything is 
what really matters.  src/libbu/Makefile.am (and hence src/libbu/Makefile) 
adds $LIBTHREAD to the libbu libs link list depending on the system.  
What is LIBTHREAD set to in the Makefile?  It should be set to -lpthread 
and should get added to the libbu link line.

By the way, that summary is already printed out in configure at the end.. :)


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Comment By: Stefan (stefpa)
Date: 2005-03-28 18:17

Message:
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As requested, I cleaned my system and tried with a fresh copy 
out of the CVS  - it failed again. 
 
When adding some debug info to the configure file, it looks like 
the $LIBS is empty: 
... 
checking if pthreading works... 
#3############################################### 
CFLAGS: -pipe -fno-strict-aliasing -fno-common -fPIC -g 
#4# 
CPPFLAGS: -I/usr/X11R6/include -I$(top_srcdir)/include 
#5# 
LDLAGS: -L/usr/X11R6/lib -pipe -fno-strict-aliasing -fno-common 
-fPIC -g 
#6# 
LIBS: 
#7# 
configure:34363: "$CC -o conftest$ac_exeext $CFLAGS 
$CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5" 
#8############################################### 
no 
checking for X... libraries /usr/X11R6/lib, 
headers /usr/X11R6/include 
 
 
thats the code I added to "configure" after  "autogen.sh": 
 
... 
rm -f conftest$ac_exeext 
echo 
echo 
"#3###############################################" 
echo "CFLAGS:" $CFLAGS  
echo "#4#" 
echo "CPPFLAGS:" $CPPFLAGS  
echo "#5#" 
echo "LDLAGS:" $LDFLAGS 
echo "#6#" 
echo "LIBS:" $LIBS 
echo "#7#" 
echo "$as_me:$LINENO: \$ac_link\" 
echo 
"#8###############################################" 
if { (eval echo "$as_me:$LINENO: \$ac_link\") >&5 
.... 

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Comment By: Sean Morrison (brlcad)
Date: 2005-03-27 15:45

Message:
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Thank you for the relevant config.log sections.  I don't quite get why it 
failed to use -lpthread without using the --with-libs option.  The test for the 
library that determines whether or not to add -lpthread actually succeeds 
(it's the first one).  The last test that failed is presently unused (and just 
goes to show that the test is missing the lib dependency.

The only thing that I can think of is that your version of the sources 
happened to be when that section of the code was actually changing quite 
a bit (which was about a week ago)..  Could you try retesting with the 
latest CVS (clean new checkout without the --with-libs option) to see if the 
problem still remains?


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Comment By: Stefan (stefpa)
Date: 2005-03-23 06:42

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Hello Sean,

./configure --with-libs="-lpthread" does take off the error
messages and I was now able to start mged - thank you very much!

###########################

The config.log says without "--with-libs...":

...
configure:23313: checking for pthread_create in -lpthread
configure:23375: result: yes
...
configure:26202: checking for pthread.h
configure:26207: result: yes
...
configure:34053: checking for threading library availability
configure:34055: result: yes
configure:34059: checking if pthreading works
configure:34091: gcc -o conftest   -pipe
-fno-strict-aliasing -fno-common -fPIC -g
-I/usr/X11R6/include -I$(top_srcdir)/include
-L/usr/X11R6/lib -pipe -fno-strict-aliasing -fno-common
-fPIC -g conftest.c  >&5
/tmp/ccSQ0LvX.o(.text+0x37): In function `main':
/sc/brlcad/conftest.c:182: undefined reference to
`pthread_create'
/tmp/ccSQ0LvX.o(.text+0x47):/sc/brlcad/conftest.c:183:
undefined reference to `pthread_join'
collect2: ld returned 1 exit status
configure:34094: $? = 1
configure: program exited with status 1
configure: failed program was:
| /* confdefs.h.  */






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Comment By: Sean Morrison (brlcad)
Date: 2005-03-22 15:29

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By the way, the simple workaround for this should be to provide the 
pthread as a libs options to configure:

./configure --with-libs="-lpthread"
make


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Comment By: Sean Morrison (brlcad)
Date: 2005-03-22 15:24

Message:
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This was very recently changed (and hopefully fixed) in the latest cvs.  If 
you update and still have the pthread build problem, could you provide your 
config.log file?  You can attach it to this bug report.  That'll let me know 
what all failed to detect the library correctly on your system.

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Comment By: Stephen (stephenhowardsf)
Date: 2005-03-22 10:43

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I confirm the pthreads linking error on Mandrake 10.1 when
trying to link the 7.2.1 cvs .

I do have a /usr/include/pthreads.h and /usr/include/pth.h

I'd like a solution as I'm very curious about this package.

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