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Diffstat (limited to 'gnulib-m4/yield.m4')
| -rw-r--r-- | gnulib-m4/yield.m4 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gnulib-m4/yield.m4 b/gnulib-m4/yield.m4 new file mode 100644 index 00000000..7a543e4e --- /dev/null +++ b/gnulib-m4/yield.m4 @@ -0,0 +1,19 @@ +# yield.m4 serial 2 +dnl Copyright (C) 2005-2010 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_YIELD], +[ + AC_REQUIRE([gl_THREADLIB]) + dnl On some systems, sched_yield is in librt, rather than in libpthread. + YIELD_LIB= + if test $gl_threads_api = posix; then + dnl Solaris has sched_yield in librt, not in libpthread or libc. + AC_CHECK_LIB([rt], [sched_yield], [YIELD_LIB=-lrt], + [dnl Solaris 2.5.1, 2.6 has sched_yield in libposix4, not librt. + AC_CHECK_LIB([posix4], [sched_yield], [YIELD_LIB=-lposix4])]) + fi + AC_SUBST([YIELD_LIB]) +]) |