Enable POSIX threads for uClinux targets Reported upstream: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71721 Signed-off-by: Waldemar Brodkorb diff -Nur gcc-4.9.3.orig/gcc/config.gcc gcc-4.9.3/gcc/config.gcc --- gcc-4.9.3.orig/gcc/config.gcc 2015-05-21 22:50:59.000000000 +0200 +++ gcc-4.9.3/gcc/config.gcc 2016-06-30 22:05:21.338233965 +0200 @@ -807,6 +807,9 @@ *-*-uclinux*) extra_options="$extra_options gnu-user.opt" use_gcc_stdint=wrap + case ${enable_threads} in + "" | yes | posix) thread_file='posix' ;; + esac tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC SINGLE_LIBC" ;; *-*-rdos*)