gas: NEWS: Add the RISC-V features for 2.39

[binutils-gdb.git] / gold / configure.ac

diff --git a/gold/configure.ac b/gold/configure.ac
index 76db2b7586b894a4566efabf11d1bd62457a8dbc..25fae6b998b7754702619c54d102cb1aa5978960 100644 (file)
--- a/gold/configure.ac
+++ b/gold/configure.ac
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 dnl
-dnl   Copyright (C) 2006-2019 Free Software Foundation, Inc.
+dnl   Copyright (C) 2006-2022 Free Software Foundation, Inc.
 dnl
 dnl This file is free software; you can redistribute it and/or modify
 dnl it under the terms of the GNU General Public License as published by
@@ -23,6 +23,7 @@ AC_CONFIG_SRCDIR(gold.cc)
 AC_CANONICAL_TARGET
 
 AM_INIT_AUTOMAKE([no-dist parallel-tests])
+AM_SILENT_RULES([yes])
 
 AM_CONFIG_HEADER(config.h:config.in)
 
@@ -372,6 +373,26 @@ dnl Whether we can test -mcmodel=medium.
 AM_CONDITIONAL(MCMODEL_MEDIUM,
 [test "$target_cpu" = "x86_64" -a "$have_mcmodel_medium" = "yes" -a "$gold_cv_prog_gcc41" = "yes"])
 
+dnl Test for gcc 9 or later.  Some incremental tests fail with GCC 9 or
+dnl later.
+AC_CACHE_CHECK([for gcc >= 9], [gold_cv_prog_gcc9],
+[AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+#if !defined __GNUC__ || __GNUC__ < 9
+error
+#endif
+])], [gold_cv_prog_gcc9=yes], [gold_cv_prog_gcc9=no])])
+AM_CONDITIONAL(GCC9, [test "$gold_cv_prog_gcc9" = "yes"])
+
+dnl Test for -fcf-protection on x86-64.  Some incremental tests fail with
+dnl -fcf-protection.
+AC_CACHE_CHECK([for -fcf-protection], [gold_cv_cflags_cf_protection],
+[AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+#if !defined __x86_64__ || !defined __CET__
+error
+#endif
+])], [gold_cv_cflags_cf_protection=yes], [gold_cv_cflags_cf_protection=no])])
+AM_CONDITIONAL(CFLAGS_CF_PROTECTION, [test "$gold_cv_cflags_cf_protection" = "yes"])
+
 AC_CACHE_CHECK([whether $CC supports -fmerge-constants],
               [gold_cv_merge_constants], [
 save_CFLAGS="$CFLAGS"
@@ -570,6 +591,32 @@ if test "$threads" = "yes"; then
 fi
 AM_CONDITIONAL(THREADS, test "$threads" = "yes")
 
+# Used to validate --package-metadata= input. Disabled by default.
+AC_ARG_ENABLE([jansson],
+  [AS_HELP_STRING([--enable-jansson],
+    [enable jansson [default=no]])],
+  [enable_jansson=$enableval],
+  [enable_jansson="no"])
+
+if test "x$enable_jansson" != "xno"; then
+  PKG_PROG_PKG_CONFIG
+  AS_IF([test -n "$PKG_CONFIG"],
+    [
+      PKG_CHECK_MODULES(JANSSON, [jansson],
+       [
+         AC_DEFINE(HAVE_JANSSON, 1, [The jansson library is to be used])
+         AC_SUBST([JANSSON_CFLAGS])
+         AC_SUBST([JANSSON_LIBS])
+       ],
+       [
+         AC_MSG_ERROR([Cannot find jansson library])
+       ])
+    ],
+    [
+      AC_MSG_ERROR([Cannot find pkg-config])
+    ])
+fi
+
 dnl We have to check these in C, not C++, because autoconf generates
 dnl tests which have no type information, and current glibc provides
 dnl multiple declarations of functions like basename when compiling
@@ -602,6 +649,9 @@ AC_CHECK_HEADERS(tr1/unordered_set tr1/unordered_map)
 AC_CHECK_HEADERS(ext/hash_map ext/hash_set)
 AC_CHECK_HEADERS(byteswap.h)
 
+dnl Check for bswap_{16,32,64}
+AC_CHECK_DECLS([bswap_16, bswap_32, bswap_64], [], [], [[#include <byteswap.h>]])
+
 dnl When plugins enabled dynamic loader interface is required. Check headers
 dnl which may provide this interface. Add the necessary library to link.
 AC_CHECK_HEADERS(windows.h)
@@ -613,7 +663,7 @@ case "$ac_cv_search_dlopen" in
 esac
 AC_SUBST(DLOPEN_LIBS)
 
-AC_CHECK_FUNCS(mallinfo posix_fallocate fallocate readv sysconf times mkdtemp)
+AC_CHECK_FUNCS(mallinfo mallinfo2 posix_fallocate fallocate readv sysconf times mkdtemp)
 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf, strverscmp, strndup, memmem])
 
 # Use of ::std::tr1::unordered_map::rehash causes undefined symbols