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| author | Per Hedeland <[email protected]> | 2012-11-14 15:10:21 +0100 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2012-11-14 15:10:21 +0100 |
| commit | 3660d23158441075dec8e3c08fb513225ec10210 (patch) | |
| tree | 80dc4243f6d191fe09eeab123b9d3d2515ed2cf1 /lib/erl_interface/aclocal.m4 | |
| parent | 55c2b0b6d55fe6a011671832b5529cb1c7b636a8 (diff) | |
| download | otp-3660d23158441075dec8e3c08fb513225ec10210.tar.gz otp-3660d23158441075dec8e3c08fb513225ec10210.tar.bz2 otp-3660d23158441075dec8e3c08fb513225ec10210.zip | |
Teach erl_interface configure more pthread support
- Teach lib/erl_interface/configure.in to look for
pthreads support in libc (where it can be found on QNX)
- A minor tweak such that this configure *fails* if you pass --enable-threads and
no pthreads support can be found.
Diffstat (limited to 'lib/erl_interface/aclocal.m4')
| -rw-r--r-- | lib/erl_interface/aclocal.m4 | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/erl_interface/aclocal.m4 b/lib/erl_interface/aclocal.m4 index b1cf1fe404..9578cd35c4 100644 --- a/lib/erl_interface/aclocal.m4 +++ b/lib/erl_interface/aclocal.m4 @@ -740,11 +740,16 @@ dnl Try to find POSIX threads dnl The usual pthread lib... AC_CHECK_LIB(pthread, pthread_create, THR_LIBS="-lpthread") -dnl FreeBSD has pthreads in special c library, c_r... +dnl Very old versions of FreeBSD have pthreads in special c library, c_r... if test "x$THR_LIBS" = "x"; then AC_CHECK_LIB(c_r, pthread_create, THR_LIBS="-lc_r") fi +dnl QNX has pthreads in standard C library + if test "x$THR_LIBS" = "x"; then + AC_CHECK_FUNC(pthread_create, THR_LIBS="none_needed") + fi + dnl On ofs1 the '-pthread' switch should be used if test "x$THR_LIBS" = "x"; then AC_MSG_CHECKING([if the '-pthread' switch can be used]) @@ -765,6 +770,9 @@ dnl On ofs1 the '-pthread' switch should be used if test "x$THR_LIBS" != "x"; then THR_DEFS="$THR_DEFS -D_THREAD_SAFE -D_REENTRANT -DPOSIX_THREADS" THR_LIB_NAME=pthread + if test "x$THR_LIBS" = "xnone_needed"; then + THR_LIBS= + fi case $host_os in solaris*) THR_DEFS="$THR_DEFS -D_POSIX_PTHREAD_SEMANTICS" ;; |