https://sourceware.org/bugzilla/show_bug.cgi?id=29364
--- Comment #1 from Vladimir Mezentsev <vladimir.mezentsev at oracle dot com> --- We build with $(PTHREAD_CFLAGS) and link with $(PTHREAD_LIBS) We use AX_PTHREAD in gprofng/configure.ac to set up PTHREAD_CFLAGS and PTHREAD_LIBS. I see in build that PTHREAD_CFLAGS is set correctly but PTHREAD_LIBS is always empty: % egrep -ns '"PTHREAD_CFLAGS"|"PTHREAD_LIBS"' */config.status gdb/config.status:745:S["PTHREAD_CFLAGS"]="-pthread" gdb/config.status:746:S["PTHREAD_LIBS"]="" gdbserver/config.status:660:S["PTHREAD_CFLAGS"]="-pthread" gdbserver/config.status:661:S["PTHREAD_LIBS"]="" gdbsupport/config.status:633:S["PTHREAD_CFLAGS"]="-pthread" gdbsupport/config.status:634:S["PTHREAD_LIBS"]="" gprofng/config.status:888:S["PTHREAD_CFLAGS"]="-pthread" gprofng/config.status:889:S["PTHREAD_LIBS"]="" libbacktrace/config.status:876:S["PTHREAD_CFLAGS"]="-pthread" It looks like the bug is in AX_PTHREAD (config/ax_pthread.m4). -- You are receiving this mail because: You are on the CC list for the bug.