[h323plus] Compiling PTLib 2.10.1 in Ubuntu 11

Piyush Verma piyush.pv at gmail.com
Tue Jun 21 21:42:37 EDT 2011


Try to install libpthread-stubs0-dev.

sudo apt-get install libpthread-stubs0-dev.

pthread stubs not provided by native libc, development files.

Thanks & Regards

Piyush Verma

On Tue, Jun 21, 2011 at 11:14 PM, JF NP <jfnp090274 at yahoo.es> wrote:

> Hi,
> I'm trying to build PTLib 2.10.1 in Ubuntu 11, and I have a problem with
> pthreads. When I run ./configure, I get the following output:
> checking for pkg-config... /usr/bin/pkg-config
> checking pkg-config is at least version 0.9.0... yes
> checking for gcc... gcc
> checking whether the C compiler works... yes
> checking for C compiler default output file name... a.out
> checking for suffix of executables...
> checking whether we are cross compiling... no
> checking for suffix of object files... o
> checking whether we are using the GNU C compiler... yes
> checking whether gcc accepts -g... yes
> checking for gcc option to accept ISO C89... none needed
> checking for g++... g++
> checking whether we are using the GNU C++ compiler... yes
> checking whether g++ accepts -g... yes
> .10figure: PTLib version is 2
> checking build system type... i686-pc-linux-gnu
> checking host system type... i686-pc-linux-gnu
> checking target system type... i686-pc-linux-gnu
> checking for swab... no
> configure: OSTYPE set to linux
> configure: OSRELEASE set to "2.6.38-8-generic"
> configure: MACHTYPE set to x86
> configure: gcc version is 4.5.2
> checking checking if pragma implementation should be used... no
> checking checking if precompiled headers available... no
> checking how to run the C++ preprocessor... g++ -E
> checking for grep that handles long lines and -e... /bin/grep
> checking for egrep... /bin/grep -E
> checking for ANSI C header files... no
> checking for sys/types.h... no
> checking for sys/stat.h... no
> checking for stdlib.h... no
> checking for string.h... no
> checking for memory.h... no
> checking for strings.h... no
> checking for inttypes.h... no
> checking for stdint.h... no
> checking for unistd.h... no
> checking whether byte ordering is bigendian... yes
> configure: Default extension for C++ files is cpp
> checking if compiler accepts -felide-constructors... no
> checking if linker accepts -Wreorder... no
> checking if debug build accepts -g3 -ggdb -O0... no
> checking if compiler uses RTTI by default... no
> checking size of int... 0
> checking for long double with more range or precision than double... no
> checking for flex... /usr/bin/flex
> checking for ar... ar
> checking for bison... /usr/bin/bison
> checking if readdir_r has 2 parms... no
> checking if readdir_r has 3 parms... no
> configure: PTRACE and all trace logging included
> configure: Using ANSI C++ bool for PBoolean: (PFalse=false PTrue=true)
> checking for recvmsg... no
> checking for IPV6_ADD_MEMBERSHIP... no
> checking for NetLink support... no
> checking if using STL streams... no
> checking if atomic integer available... no
> checking if Unix semaphores are available... no
> checking if named semaphores are available... no
> configure: WARNING: This host does not support semaphores which are
> essential
> configure: WARNING: to implement 'critical sections'. This feature was
> added
> configure: WARNING: in PWLib 1.7.0 and improves the stability of
> multithreaded
> configure: WARNING: programs. This feature has been disabled for this host
> checking for pthread_create in -lpthread... no
> configure: error: must have pthreads!
> But if I do: whereis pthread.h
> I get: /usr/include/pthread.h
> So it seems that pthreads is installed. What am I doing wrong?
> Regards, and thank you in advance for your help.
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