dnl Process this file with autoconf to produce a configure script.
dnl
-dnl Copyright (C) 2006-2018 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
AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE([no-dist parallel-tests])
+AM_SILENT_RULES([yes])
AM_CONFIG_HEADER(config.h:config.in)
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"
AC_SUBST(LFS_CFLAGS)
AC_CHECK_HEADERS(sys/mman.h)
-AC_CHECK_FUNCS(chsize mmap)
+AC_CHECK_FUNCS(chsize mmap link)
AC_REPLACE_FUNCS(pread ftruncate ffsll)
AC_CACHE_CHECK([mremap with MREMAP_MAYMOVE], [gold_cv_lib_mremap_maymove],
AC_LIBOBJ(mremap)
fi
-# Link in zlib if we can. This allows us to write compressed sections.
+# Link in zlib/zstd if we can. This allows us to write compressed sections.
AM_ZLIB
+AC_ZSTD
+AM_CONDITIONAL(HAVE_ZSTD, test "$pkg_cv_ZSTD_LIBS" != "")
AC_ARG_ENABLE([threads],
[[ --enable-threads[=ARG] multi-threaded linking [ARG={auto,yes,no}]]],
fi
AM_CONDITIONAL(THREADS, test "$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
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)
esac
AC_SUBST(DLOPEN_LIBS)
-AC_CHECK_FUNCS(mallinfo posix_fallocate fallocate readv sysconf times)
+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