No C++ Pthread support inside OBS?

English Open Build Service (OBS)
#1

This has me stumped – has anyone seen an issue like this with OBS:

When running on a interactive system I get this from my packages configure script – everything looks good and the build succeeds:

checking if C compiler and POSIX threads work as is... no
checking if C++ compiler and POSIX threads work as is... no
checking if C compiler and POSIX threads work with -Kthread... no
checking if C compiler and POSIX threads work with -kthread... no
checking if C compiler and POSIX threads work with -pthread... yes
checking if C++ compiler and POSIX threads work with -Kthread... no
checking if C++ compiler and POSIX threads work with -kthread... no
checking if C++ compiler and POSIX threads work with -pthread... yes
checking for pthread_mutexattr_setpshared... yes
checking for pthread_condattr_setpshared... yes
checking for PTHREAD_MUTEX_ERRORCHECK_NP... yes
checking for PTHREAD_MUTEX_ERRORCHECK... yes
checking for working POSIX threads package... yes

But inside OBS it bombs out trying to find a working pthread flag for C++:

   87s] checking if C compiler and POSIX threads work as is... no
   87s] checking if C++ compiler and POSIX threads work as is... no
   87s] checking if C compiler and POSIX threads work with -Kthread... no
   87s] checking if C compiler and POSIX threads work with -kthread... no
   87s] checking if C compiler and POSIX threads work with -pthread... yes
   87s] checking if C++ compiler and POSIX threads work with -Kthread... no
   87s] checking if C++ compiler and POSIX threads work with -kthread... no
   87s] checking if C++ compiler and POSIX threads work with -pthread... no
   87s] checking if C++ compiler and POSIX threads work with -pthreads... no
   87s] checking if C++ compiler and POSIX threads work with -mt... no
   87s] checking if C++ compiler and POSIX threads work with -mthreads... no
   87s] checking if C++ compiler and POSIX threads work with -lpthreads... no
   87s] checking if C++ compiler and POSIX threads work with -llthread... no
   87s] checking if C++ compiler and POSIX threads work with -lpthread... no
   87s] checking for pthread_mutexattr_setpshared... yes
   87s] checking for pthread_condattr_setpshared... yes
   87s] checking for PTHREAD_MUTEX_ERRORCHECK_NP... yes
   87s] checking for PTHREAD_MUTEX_ERRORCHECK... yes
   87s] checking for working POSIX threads package... no
   87s] configure: WARNING: "*** POSIX threads are not"
   87s] configure: WARNING: "*** available on your system "
   87s] configure: error: "*** Can not continue"

I can’t think of a missing package beyond maybe glibc that might be causing something like this.

Any ideas?

#2

Maybe you miss the C++ compiler? Try “BuildRequires: gcc-c++”.
Would explain that a C program can be built with -pthread, but not a C++ program…