Update copyright years.

[thirdparty/gcc.git] / libatomic / configure.ac

diff --git a/libatomic/configure.ac b/libatomic/configure.ac
index 390e7791abaa4e4d25f518e128a60ec2a9e78347..dc297f4050a3bed22dfbb8e73b27fd1d0476eabe 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 Free Software Foundation, Inc.
+#  Copyright (C) 2012-2020 Free Software Foundation, Inc.
 #
 #  This file is part of the GNU Atomic Library (libatomic).
 #
@@ -22,7 +22,6 @@
 #  see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #  <http://www.gnu.org/licenses/>.
 
-AC_PREREQ(2.59)
 AC_INIT([GNU Atomic Library], 1.0,,[libatomic])
 AC_CONFIG_HEADER(auto-config.h)
 
@@ -76,12 +75,13 @@ target_alias=${target_alias-$host_alias}
 #  no-define:  PACKAGE and VERSION will not be #define'd in config.h (a bunch
 #              of other PACKAGE_* variables will, however, and there's nothing
 #              we can do about that; they come from AC_INIT).
+#  no-dist:  we don't want 'dist' and related rules.
 #  foreign:  we don't follow the normal rules for GNU packages (no COPYING
 #            file in the top srcdir, etc, etc), so stop complaining.
 #  -Wall:  turns on all automake warnings...
 #  -Wno-portability:  ...except this one, since GNU make is required.
 #  -Wno-override: ... and this one, since we do want this in testsuite.
-AM_INIT_AUTOMAKE([1.9.0 foreign -Wall -Wno-portability -Wno-override])
+AM_INIT_AUTOMAKE([1.9.0 foreign no-dist -Wall -Wno-portability -Wno-override])
 AM_ENABLE_MULTILIB(, ..)
 
 # Calculate toolexeclibdir
@@ -142,20 +142,36 @@ 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=1:0:0
+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])
+
+case "$target" in
+ *aarch64*)
+    ACX_PROG_CC_WARNING_OPTS([-march=armv8-a+lse],[enable_aarch64_lse])
+    ;;
+esac
+
 # Get target configury.
 . ${srcdir}/configure.tgt
 if test -n "$UNSUPPORTED"; then
   AC_MSG_ERROR([Configuration ${target} is unsupported.])
 fi
 
+# Write out the ifunc resolver arg type.
+AC_DEFINE_UNQUOTED(IFUNC_RESOLVER_ARGS, $IFUNC_RESOLVER_ARGS,
+       [Define ifunc resolver function argument.])
+
 # Disable fallbacks to __sync routines from libgcc.  Otherwise we'll
 # make silly decisions about what the cpu can do.
 CFLAGS="$save_CFLAGS -fno-sync-libcalls $XCFLAGS"
@@ -164,6 +180,7 @@ CFLAGS="$save_CFLAGS -fno-sync-libcalls $XCFLAGS"
 AC_STDC_HEADERS
 ACX_HEADER_STRING
 GCC_HEADER_STDINT(gstdint.h)
+AC_CHECK_HEADERS([fenv.h])
 
 # Check for common type sizes
 LIBAT_FORALL_MODES([LIBAT_HAVE_INT_MODE])
@@ -230,6 +247,10 @@ if test "x$GCC" = "xyes"; then
   XCFLAGS="$XCFLAGS -Wall -Werror"
 fi
 
+# Add CET specific flags if CET is enabled
+GCC_CET_FLAGS(CET_FLAGS)
+XCFLAGS="$XCFLAGS $CET_FLAGS"
+
 XCFLAGS="$XCFLAGS $XPCFLAGS"
 
 AC_SUBST(config_path)
@@ -239,6 +260,8 @@ AC_SUBST(LIBS)
 AC_SUBST(SIZES)
 
 AM_CONDITIONAL(HAVE_IFUNC, test x$libat_cv_have_ifunc = xyes)
+AM_CONDITIONAL(ARCH_AARCH64_LINUX,
+              [expr "$config_path" : ".* linux/aarch64 .*" > /dev/null])
 AM_CONDITIONAL(ARCH_ARM_LINUX,
               [expr "$config_path" : ".* linux/arm .*" > /dev/null])
 AM_CONDITIONAL(ARCH_I386,
@@ -246,6 +269,9 @@ AM_CONDITIONAL(ARCH_I386,
 AM_CONDITIONAL(ARCH_X86_64,
               [test "$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