coarray_43.f90: Add "-latomic" option if libatomic_available.

[gcc.git] / libatomic / configure.ac

diff --git a/libatomic/configure.ac b/libatomic/configure.ac
index fd2d35bf04f325fc217cafbd9c2715c63d2a093d..023f1727b1e9b64f99a43a4ce83574974e43a3d1 100644 (file)
--- a/libatomic/configure.ac
+++ b/libatomic/configure.ac
@@ -1,5 +1,5 @@
 # Process this file with autoreconf to produce a configure script.
-#  Copyright (C) 2012-2013 Free Software Foundation, Inc.
+#  Copyright (C) 2012-2017 Free Software Foundation, Inc.
 #
 #  This file is part of the GNU Atomic Library (libatomic).
 #
@@ -143,14 +143,20 @@ AC_PROG_INSTALL
 
 # Configure libtool
 AM_PROG_LIBTOOL
+ACX_LT_HOST_FLAGS
 AC_SUBST(enable_shared)
 AC_SUBST(enable_static)
 AM_MAINTAINER_MODE
 
 # For libtool versioning info, format is CURRENT:REVISION:AGE
-libtool_VERSION=2:0:1
+libtool_VERSION=3:0:2
 AC_SUBST(libtool_VERSION)
 
+# Check for used threading-model
+AC_MSG_CHECKING([for thread model used by GCC])
+target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
+AC_MSG_RESULT([$target_thread_file])
+
 # Get target configury.
 . ${srcdir}/configure.tgt
 if test -n "$UNSUPPORTED"; then
@@ -248,6 +254,9 @@ AM_CONDITIONAL(ARCH_I386,
 AM_CONDITIONAL(ARCH_X86_64,
               [test "$ARCH" = x86 && test x$libat_cv_wordsize = x8])
 
+# Determine what GCC version number to use in filesystem paths.
+GCC_BASE_VER
+
 if test ${multilib} = yes; then
   multilib_arg="--enable-multilib"
 else