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80 lines
2.6 KiB
Text
80 lines
2.6 KiB
Text
dnl -*- Autoconf -*-
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AC_DEFUN([RUBY_THREAD], [
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AC_ARG_WITH(thread,
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AS_HELP_STRING([--with-thread=IMPLEMENTATION], [specify the thread implementation to use]),
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[THREAD_MODEL=$withval], [
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THREAD_MODEL=
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AS_CASE(["$target_os"],
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[freebsd*], [
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AC_CACHE_CHECK([whether pthread should be enabled by default],
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rb_cv_enable_pthread_default,
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[AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
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@%:@include <osreldate.h>
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@%:@if __FreeBSD_version < 502102
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@%:@error pthread should be disabled on this platform
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@%:@endif
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]])],
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rb_cv_enable_pthread_default=yes,
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rb_cv_enable_pthread_default=no)])
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AS_IF([test $rb_cv_enable_pthread_default = yes],
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[THREAD_MODEL=pthread],
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[THREAD_MODEL=none])
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],
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[mingw*], [
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THREAD_MODEL=win32
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],
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[wasi*], [
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THREAD_MODEL=none
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],
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[
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THREAD_MODEL=pthread
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]
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)
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])
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AS_IF([test x"$THREAD_MODEL" = xpthread], [
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AC_CHECK_HEADERS(pthread.h)
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AS_IF([test x"$ac_cv_header_pthread_h" = xyes], [], [
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AC_MSG_WARN("Don't know how to find pthread header on your system -- thread support disabled")
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THREAD_MODEL=none
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])
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])
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AS_IF([test x"$THREAD_MODEL" = xpthread], [
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THREAD_MODEL=none
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for pthread_lib in thr pthread pthreads c c_r root; do
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AC_CHECK_LIB($pthread_lib, pthread_create,
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[THREAD_MODEL=pthread; break])
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done
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AS_IF([test x"$THREAD_MODEL" = xpthread], [
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AC_DEFINE(_REENTRANT)
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AC_DEFINE(_THREAD_SAFE)
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AC_DEFINE(HAVE_LIBPTHREAD)
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AC_CHECK_HEADERS(pthread_np.h, [], [], [@%:@include <pthread.h>])
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AS_CASE(["$pthread_lib:$target_os"],
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[c:*], [],
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[root:*], [],
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[c_r:*|*:openbsd*|*:mirbsd*], [LIBS="-pthread $LIBS"],
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[LIBS="-l$pthread_lib $LIBS"])
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], [
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AC_MSG_WARN("Don't know how to find pthread library on your system -- thread support disabled")
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])
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])
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AS_CASE(["$THREAD_MODEL"],
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[pthread], [],
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[win32], [],
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[none], [],
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[""], [AC_MSG_ERROR(thread model is missing)],
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[AC_MSG_ERROR(unknown thread model $THREAD_MODEL)])
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AC_MSG_CHECKING(thread model)
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AC_MSG_RESULT($THREAD_MODEL)
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THREAD_IMPL_H=thread_$THREAD_MODEL.h
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AS_IF([test ! -f "$srcdir/$THREAD_IMPL_H"],
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[AC_MSG_ERROR('$srcdir/$THREAD_IMPL_H' must exist)])
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THREAD_IMPL_SRC=thread_$THREAD_MODEL.c
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AS_IF([test ! -f "$srcdir/$THREAD_IMPL_SRC"],
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[AC_MSG_ERROR('$srcdir/$THREAD_IMPL_SRC' must exist)])
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AC_DEFINE_UNQUOTED(THREAD_IMPL_H, ["$THREAD_IMPL_H"])
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AC_DEFINE_UNQUOTED(THREAD_IMPL_SRC, ["$THREAD_IMPL_SRC"])
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])dnl
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