diff --git a/license.txt b/license.txt
index cbae9360155b2243ea1b33ac3f86980755ac6b4f..ed7c7b97db2af8ebbf905d314a41ebabcb2809ce 100644
--- a/license.txt
+++ b/license.txt
@@ -34,6 +34,7 @@ Copyright: 2008 Benjamin Kosnik <bkoz@redhat.com>
2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com>
2015 Paul Norman <penorman@mac.com>
2015 Moritz Klammler <moritz@klammler.eu>
+ 2016 Krzesimir Nowak <qdlacz@gmail.com>
License: FSFAP
Files: m4/ax_latex_class.m4 m4/ax_tex_test.m4
diff --git a/m4/ax_boost_base.m4 b/m4/ax_boost_base.m4
index ab46745d7b97374fdfe4e96d50ff5645d7533573..2bce5194a0fd5d4caa76f7e948de30f6dc41f9d5 100644
--- a/m4/ax_boost_base.m4
+++ b/m4/ax_boost_base.m4
@@ -1,5 +1,5 @@
# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_boost_base.html
+# https://www.gnu.org/software/autoconf-archive/ax_boost_base.html
# ===========================================================================
#
# SYNOPSIS
@@ -33,7 +33,15 @@
# and this notice are preserved. This file is offered as-is, without any
# warranty.
-#serial 27
+#serial 43
+
+# example boost program (need to pass version)
+m4_define([_AX_BOOST_BASE_PROGRAM],
+ [AC_LANG_PROGRAM([[
+#include <boost/version.hpp>
+]],[[
+(void) ((void)sizeof(char[1 - 2*!!((BOOST_VERSION) < ($1))]));
+]])])
AC_DEFUN([AX_BOOST_BASE],
[
@@ -44,104 +52,121 @@ AC_ARG_WITH([boost],
or disable it (ARG=no)
@<:@ARG=yes@:>@ ])],
[
- if test "$withval" = "no"; then
- want_boost="no"
- elif test "$withval" = "yes"; then
- want_boost="yes"
- ac_boost_path=""
- else
- want_boost="yes"
- ac_boost_path="$withval"
- fi
+ AS_CASE([$withval],
+ [no],[want_boost="no";_AX_BOOST_BASE_boost_path=""],
+ [yes],[want_boost="yes";_AX_BOOST_BASE_boost_path=""],
+ [want_boost="yes";_AX_BOOST_BASE_boost_path="$withval"])
],
[want_boost="yes"])
AC_ARG_WITH([boost-libdir],
- AS_HELP_STRING([--with-boost-libdir=LIB_DIR],
- [Force given directory for boost libraries. Note that this will override library path detection, so use this parameter only if default library detection fails and you know exactly where your boost libraries are located.]),
- [
- if test -d "$withval"
- then
- ac_boost_lib_path="$withval"
- else
- AC_MSG_ERROR(--with-boost-libdir expected directory name)
- fi
- ],
- [ac_boost_lib_path=""]
-)
+ [AS_HELP_STRING([--with-boost-libdir=LIB_DIR],
+ [Force given directory for boost libraries.
+ Note that this will override library path detection,
+ so use this parameter only if default library detection fails
+ and you know exactly where your boost libraries are located.])],
+ [
+ AS_IF([test -d "$withval"],
+ [_AX_BOOST_BASE_boost_lib_path="$withval"],
+ [AC_MSG_ERROR([--with-boost-libdir expected directory name])])
+ ],
+ [_AX_BOOST_BASE_boost_lib_path=""])
-if test "x$want_boost" = "xyes"; then
- boost_lib_version_req=ifelse([$1], ,1.20.0,$1)
- boost_lib_version_req_shorten=`expr $boost_lib_version_req : '\([[0-9]]*\.[[0-9]]*\)'`
- boost_lib_version_req_major=`expr $boost_lib_version_req : '\([[0-9]]*\)'`
- boost_lib_version_req_minor=`expr $boost_lib_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
- boost_lib_version_req_sub_minor=`expr $boost_lib_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
- if test "x$boost_lib_version_req_sub_minor" = "x" ; then
- boost_lib_version_req_sub_minor="0"
- fi
- WANT_BOOST_VERSION=`expr $boost_lib_version_req_major \* 100000 \+ $boost_lib_version_req_minor \* 100 \+ $boost_lib_version_req_sub_minor`
- AC_MSG_CHECKING(for boostlib >= $boost_lib_version_req)
+BOOST_LDFLAGS=""
+BOOST_CPPFLAGS=""
+AS_IF([test "x$want_boost" = "xyes"],
+ [_AX_BOOST_BASE_RUNDETECT([$1],[$2],[$3])])
+AC_SUBST(BOOST_CPPFLAGS)
+AC_SUBST(BOOST_LDFLAGS)
+])
+
+
+# convert a version string in $2 to numeric and affect to polymorphic var $1
+AC_DEFUN([_AX_BOOST_BASE_TONUMERICVERSION],[
+ AS_IF([test "x$2" = "x"],[_AX_BOOST_BASE_TONUMERICVERSION_req="1.20.0"],[_AX_BOOST_BASE_TONUMERICVERSION_req="$2"])
+ _AX_BOOST_BASE_TONUMERICVERSION_req_shorten=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '\([[0-9]]*\.[[0-9]]*\)'`
+ _AX_BOOST_BASE_TONUMERICVERSION_req_major=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '\([[0-9]]*\)'`
+ AS_IF([test "x$_AX_BOOST_BASE_TONUMERICVERSION_req_major" = "x"],
+ [AC_MSG_ERROR([You should at least specify libboost major version])])
+ _AX_BOOST_BASE_TONUMERICVERSION_req_minor=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '[[0-9]]*\.\([[0-9]]*\)'`
+ AS_IF([test "x$_AX_BOOST_BASE_TONUMERICVERSION_req_minor" = "x"],
+ [_AX_BOOST_BASE_TONUMERICVERSION_req_minor="0"])
+ _AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
+ AS_IF([test "X$_AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor" = "X"],
+ [_AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor="0"])
+ _AX_BOOST_BASE_TONUMERICVERSION_RET=`expr $_AX_BOOST_BASE_TONUMERICVERSION_req_major \* 100000 \+ $_AX_BOOST_BASE_TONUMERICVERSION_req_minor \* 100 \+ $_AX_BOOST_BASE_TONUMERICVERSION_req_sub_minor`
+ AS_VAR_SET($1,$_AX_BOOST_BASE_TONUMERICVERSION_RET)
+])
+
+dnl Run the detection of boost should be run only if $want_boost
+AC_DEFUN([_AX_BOOST_BASE_RUNDETECT],[
+ _AX_BOOST_BASE_TONUMERICVERSION(WANT_BOOST_VERSION,[$1])
succeeded=no
+
+ AC_REQUIRE([AC_CANONICAL_HOST])
dnl On 64-bit systems check for system libraries in both lib64 and lib.
dnl The former is specified by FHS, but e.g. Debian does not adhere to
dnl this (as it rises problems for generic multi-arch support).
dnl The last entry in the list is chosen by default when no libraries
dnl are found, e.g. when only header-only libraries are installed!
- libsubdirs="lib"
- ax_arch=`uname -m`
- case $ax_arch in
- x86_64)
- libsubdirs="lib64 libx32 lib lib64"
- ;;
- ppc64|s390x|sparc64|aarch64|ppc64le)
- libsubdirs="lib64 lib lib64"
- ;;
- esac
+ AS_CASE([${host_cpu}],
+ [x86_64],[libsubdirs="lib64 libx32 lib lib64"],
+ [ppc64|s390x|sparc64|aarch64|ppc64le],[libsubdirs="lib64 lib lib64"],
+ [libsubdirs="lib"]
+ )
dnl allow for real multi-arch paths e.g. /usr/lib/x86_64-linux-gnu. Give
dnl them priority over the other paths since, if libs are found there, they
dnl are almost assuredly the ones desired.
- AC_REQUIRE([AC_CANONICAL_HOST])
- libsubdirs="lib/${host_cpu}-${host_os} $libsubdirs"
-
- case ${host_cpu} in
- i?86)
- libsubdirs="lib/i386-${host_os} $libsubdirs"
- ;;
- esac
+ AS_CASE([${host_cpu}],
+ [i?86],[multiarch_libsubdir="lib/i386-${host_os}"],
+ [multiarch_libsubdir="lib/${host_cpu}-${host_os}"]
+ )
dnl first we check the system location for boost libraries
dnl this location ist chosen if boost libraries are installed with the --layout=system option
dnl or if you install boost with RPM
- if test "$ac_boost_path" != ""; then
- BOOST_CPPFLAGS="-I$ac_boost_path/include"
- for ac_boost_path_tmp in $libsubdirs; do
- if test -d "$ac_boost_path"/"$ac_boost_path_tmp" ; then
- BOOST_LDFLAGS="-L$ac_boost_path/$ac_boost_path_tmp"
- break
- fi
- done
- elif test "$cross_compiling" != yes; then
- for ac_boost_path_tmp in /usr /usr/local /opt /opt/local ; do
- if test -d "$ac_boost_path_tmp/include/boost" && test -r "$ac_boost_path_tmp/include/boost"; then
- for libsubdir in $libsubdirs ; do
- if ls "$ac_boost_path_tmp/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
+ AS_IF([test "x$_AX_BOOST_BASE_boost_path" != "x"],[
+ AC_MSG_CHECKING([for boostlib >= $1 ($WANT_BOOST_VERSION) includes in "$_AX_BOOST_BASE_boost_path/include"])
+ AS_IF([test -d "$_AX_BOOST_BASE_boost_path/include" && test -r "$_AX_BOOST_BASE_boost_path/include"],[
+ AC_MSG_RESULT([yes])
+ BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path/include"
+ for _AX_BOOST_BASE_boost_path_tmp in $multiarch_libsubdir $libsubdirs; do
+ AC_MSG_CHECKING([for boostlib >= $1 ($WANT_BOOST_VERSION) lib path in "$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp"])
+ AS_IF([test -d "$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp" && test -r "$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp" ],[
+ AC_MSG_RESULT([yes])
+ BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_path/$_AX_BOOST_BASE_boost_path_tmp";
+ break;
+ ],
+ [AC_MSG_RESULT([no])])
+ done],[
+ AC_MSG_RESULT([no])])
+ ],[
+ if test X"$cross_compiling" = Xyes; then
+ search_libsubdirs=$multiarch_libsubdir
+ else
+ search_libsubdirs="$multiarch_libsubdir $libsubdirs"
+ fi
+ for _AX_BOOST_BASE_boost_path_tmp in /usr /usr/local /opt /opt/local ; do
+ if test -d "$_AX_BOOST_BASE_boost_path_tmp/include/boost" && test -r "$_AX_BOOST_BASE_boost_path_tmp/include/boost" ; then
+ for libsubdir in $search_libsubdirs ; do
+ if ls "$_AX_BOOST_BASE_boost_path_tmp/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
done
- BOOST_LDFLAGS="-L$ac_boost_path_tmp/$libsubdir"
- BOOST_CPPFLAGS="-I$ac_boost_path_tmp/include"
+ BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_path_tmp/$libsubdir"
+ BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path_tmp/include"
break;
fi
done
- fi
+ ])
dnl overwrite ld flags if we have required special directory with
dnl --with-boost-libdir parameter
- if test "$ac_boost_lib_path" != ""; then
- BOOST_LDFLAGS="-L$ac_boost_lib_path"
- fi
+ AS_IF([test "x$_AX_BOOST_BASE_boost_lib_path" != "x"],
+ [BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_lib_path"])
+ AC_MSG_CHECKING([for boostlib >= $1 ($WANT_BOOST_VERSION)])
CPPFLAGS_SAVED="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
export CPPFLAGS
@@ -152,15 +177,7 @@ if test "x$want_boost" = "xyes"; then
AC_REQUIRE([AC_PROG_CXX])
AC_LANG_PUSH(C++)
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
- @%:@include <boost/version.hpp>
- ]], [[
- #if BOOST_VERSION >= $WANT_BOOST_VERSION
- // Everything is okay
- #else
- # error Boost version is too old
- #endif
- ]])],[
+ AC_COMPILE_IFELSE([_AX_BOOST_BASE_PROGRAM($WANT_BOOST_VERSION)],[
AC_MSG_RESULT(yes)
succeeded=yes
found_system=yes
@@ -172,40 +189,50 @@ if test "x$want_boost" = "xyes"; then
dnl if we found no boost with system layout we search for boost libraries
dnl built and installed without the --layout=system option or for a staged(not installed) version
- if test "x$succeeded" != "xyes"; then
+ if test "x$succeeded" != "xyes" ; then
CPPFLAGS="$CPPFLAGS_SAVED"
LDFLAGS="$LDFLAGS_SAVED"
BOOST_CPPFLAGS=
- BOOST_LDFLAGS=
+ if test -z "$_AX_BOOST_BASE_boost_lib_path" ; then
+ BOOST_LDFLAGS=
+ fi
_version=0
- if test "$ac_boost_path" != ""; then
- if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
- for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
- _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
+ if test -n "$_AX_BOOST_BASE_boost_path" ; then
+ if test -d "$_AX_BOOST_BASE_boost_path" && test -r "$_AX_BOOST_BASE_boost_path"; then
+ for i in `ls -d $_AX_BOOST_BASE_boost_path/include/boost-* 2>/dev/null`; do
+ _version_tmp=`echo $i | sed "s#$_AX_BOOST_BASE_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
V_CHECK=`expr $_version_tmp \> $_version`
- if test "$V_CHECK" = "1" ; then
+ if test "x$V_CHECK" = "x1" ; then
_version=$_version_tmp
fi
VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
- BOOST_CPPFLAGS="-I$ac_boost_path/include/boost-$VERSION_UNDERSCORE"
+ BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path/include/boost-$VERSION_UNDERSCORE"
done
dnl if nothing found search for layout used in Windows distributions
if test -z "$BOOST_CPPFLAGS"; then
- if test -d "$ac_boost_path/boost" && test -r "$ac_boost_path/boost"; then
- BOOST_CPPFLAGS="-I$ac_boost_path"
+ if test -d "$_AX_BOOST_BASE_boost_path/boost" && test -r "$_AX_BOOST_BASE_boost_path/boost"; then
+ BOOST_CPPFLAGS="-I$_AX_BOOST_BASE_boost_path"
fi
fi
+ dnl if we found something and BOOST_LDFLAGS was unset before
+ dnl (because "$_AX_BOOST_BASE_boost_lib_path" = ""), set it here.
+ if test -n "$BOOST_CPPFLAGS" && test -z "$BOOST_LDFLAGS"; then
+ for libsubdir in $libsubdirs ; do
+ if ls "$_AX_BOOST_BASE_boost_path/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
+ done
+ BOOST_LDFLAGS="-L$_AX_BOOST_BASE_boost_path/$libsubdir"
+ fi
fi
else
- if test "$cross_compiling" != yes; then
- for ac_boost_path in /usr /usr/local /opt /opt/local ; do
- if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
- for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
- _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
+ if test "x$cross_compiling" != "xyes" ; then
+ for _AX_BOOST_BASE_boost_path in /usr /usr/local /opt /opt/local ; do
+ if test -d "$_AX_BOOST_BASE_boost_path" && test -r "$_AX_BOOST_BASE_boost_path" ; then
+ for i in `ls -d $_AX_BOOST_BASE_boost_path/include/boost-* 2>/dev/null`; do
+ _version_tmp=`echo $i | sed "s#$_AX_BOOST_BASE_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
V_CHECK=`expr $_version_tmp \> $_version`
- if test "$V_CHECK" = "1" ; then
+ if test "x$V_CHECK" = "x1" ; then
_version=$_version_tmp
- best_path=$ac_boost_path
+ best_path=$_AX_BOOST_BASE_boost_path
fi
done
fi
@@ -213,7 +240,7 @@ if test "x$want_boost" = "xyes"; then
VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
BOOST_CPPFLAGS="-I$best_path/include/boost-$VERSION_UNDERSCORE"
- if test "$ac_boost_lib_path" = ""; then
+ if test -z "$_AX_BOOST_BASE_boost_lib_path" ; then
for libsubdir in $libsubdirs ; do
if ls "$best_path/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
done
@@ -221,7 +248,7 @@ if test "x$want_boost" = "xyes"; then
fi
fi
- if test "x$BOOST_ROOT" != "x"; then
+ if test -n "$BOOST_ROOT" ; then
for libsubdir in $libsubdirs ; do
if ls "$BOOST_ROOT/stage/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
done
@@ -230,7 +257,7 @@ if test "x$want_boost" = "xyes"; then
stage_version=`echo $version_dir | sed 's/boost_//' | sed 's/_/./g'`
stage_version_shorten=`expr $stage_version : '\([[0-9]]*\.[[0-9]]*\)'`
V_CHECK=`expr $stage_version_shorten \>\= $_version`
- if test "$V_CHECK" = "1" -a "$ac_boost_lib_path" = "" ; then
+ if test "x$V_CHECK" = "x1" && test -z "$_AX_BOOST_BASE_boost_lib_path" ; then
AC_MSG_NOTICE(We will use a staged boost library from $BOOST_ROOT)
BOOST_CPPFLAGS="-I$BOOST_ROOT"
BOOST_LDFLAGS="-L$BOOST_ROOT/stage/$libsubdir"
@@ -245,15 +272,7 @@ if test "x$want_boost" = "xyes"; then
export LDFLAGS
AC_LANG_PUSH(C++)
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
- @%:@include <boost/version.hpp>
- ]], [[
- #if BOOST_VERSION >= $WANT_BOOST_VERSION
- // Everything is okay
- #else
- # error Boost version is too old
- #endif
- ]])],[
+ AC_COMPILE_IFELSE([_AX_BOOST_BASE_PROGRAM($WANT_BOOST_VERSION)],[
AC_MSG_RESULT(yes)
succeeded=yes
found_system=yes
@@ -262,17 +281,15 @@ if test "x$want_boost" = "xyes"; then
AC_LANG_POP([C++])
fi
- if test "$succeeded" != "yes" ; then
- if test "$_version" = "0" ; then
- AC_MSG_NOTICE([[We could not detect the boost libraries (version $boost_lib_version_req_shorten or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option. If you are sure you have boost installed, then check your version number looking in <boost/version.hpp>. See http://randspringer.de/boost for more documentation.]])
+ if test "x$succeeded" != "xyes" ; then
+ if test "x$_version" = "x0" ; then
+ AC_MSG_NOTICE([[We could not detect the boost libraries (version $1 or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option. If you are sure you have boost installed, then check your version number looking in <boost/version.hpp>. See http://randspringer.de/boost for more documentation.]])
else
AC_MSG_NOTICE([Your boost libraries seems to old (version $_version).])
fi
# execute ACTION-IF-NOT-FOUND (if present):
ifelse([$3], , :, [$3])
else
- AC_SUBST(BOOST_CPPFLAGS)
- AC_SUBST(BOOST_LDFLAGS)
AC_DEFINE(HAVE_BOOST,,[define if the Boost library is available])
# execute ACTION-IF-FOUND (if present):
ifelse([$2], , :, [$2])
@@ -280,6 +297,5 @@ if test "x$want_boost" = "xyes"; then
CPPFLAGS="$CPPFLAGS_SAVED"
LDFLAGS="$LDFLAGS_SAVED"
-fi
])
diff --git a/m4/ax_boost_filesystem.m4 b/m4/ax_boost_filesystem.m4
index f162163cdc600a69f77ea9d41443fc78ee194b00..c392f9d65f0196efb83945a7212396892952d55a 100644
--- a/m4/ax_boost_filesystem.m4
+++ b/m4/ax_boost_filesystem.m4
@@ -1,5 +1,5 @@
# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_boost_filesystem.html
+# https://www.gnu.org/software/autoconf-archive/ax_boost_filesystem.html
# ===========================================================================
#
# SYNOPSIS
@@ -31,7 +31,7 @@
# and this notice are preserved. This file is offered as-is, without any
# warranty.
-#serial 26
+#serial 27
AC_DEFUN([AX_BOOST_FILESYSTEM],
[
diff --git a/m4/ax_boost_system.m4 b/m4/ax_boost_system.m4
index 43570a51384d9d709e0ef8ce27d964cf43b8b93f..207d7be8de41309d204cebd5c0d5ab3fdfd3d7a4 100644
--- a/m4/ax_boost_system.m4
+++ b/m4/ax_boost_system.m4
@@ -1,5 +1,5 @@
# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_boost_system.html
+# https://www.gnu.org/software/autoconf-archive/ax_boost_system.html
# ===========================================================================
#
# SYNOPSIS
@@ -31,7 +31,7 @@
# and this notice are preserved. This file is offered as-is, without any
# warranty.
-#serial 18
+#serial 19
AC_DEFUN([AX_BOOST_SYSTEM],
[
diff --git a/m4/ax_cxx_compile_stdcxx.m4 b/m4/ax_cxx_compile_stdcxx.m4
index 2c18e49c56c0bc732a4bd6534ae03f871d42c6db..5032bba8091d5d1074f4509b4c47b38a66389c6b 100644
--- a/m4/ax_cxx_compile_stdcxx.m4
+++ b/m4/ax_cxx_compile_stdcxx.m4
@@ -1,5 +1,5 @@
# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
+# https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
# ===========================================================================
#
# SYNOPSIS
@@ -33,21 +33,23 @@
# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com>
# Copyright (c) 2015 Paul Norman <penorman@mac.com>
# Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu>
+# Copyright (c) 2016 Krzesimir Nowak <qdlacz@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
-#serial 4
+#serial 7
dnl This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro
dnl (serial version number 13).
+AX_REQUIRE_DEFINED([AC_MSG_WARN])
AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
- m4_if([$1], [11], [],
- [$1], [14], [],
- [$1], [17], [m4_fatal([support for C++17 not yet implemented in AX_CXX_COMPILE_STDCXX])],
+ m4_if([$1], [11], [ax_cxx_compile_alternatives="11 0x"],
+ [$1], [14], [ax_cxx_compile_alternatives="14 1y"],
+ [$1], [17], [ax_cxx_compile_alternatives="17 1z"],
[m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl
m4_if([$2], [], [],
[$2], [ext], [],
@@ -70,7 +72,8 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
m4_if([$2], [noext], [], [dnl
if test x$ac_success = xno; then
- for switch in -std=gnu++$1 -std=gnu++0x; do
+ for alternative in ${ax_cxx_compile_alternatives}; do
+ switch="-std=gnu++${alternative}"
cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
$cachevar,
@@ -96,22 +99,27 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
dnl HP's aCC needs +std=c++11 according to:
dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf
dnl Cray's crayCC needs "-h std=c++11"
- for switch in -std=c++$1 -std=c++0x +std=c++$1 "-h std=c++$1"; do
- cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
- AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
- $cachevar,
- [ac_save_CXX="$CXX"
- CXX="$CXX $switch"
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
- [eval $cachevar=yes],
- [eval $cachevar=no])
- CXX="$ac_save_CXX"])
- if eval test x\$$cachevar = xyes; then
- CXX="$CXX $switch"
- if test -n "$CXXCPP" ; then
- CXXCPP="$CXXCPP $switch"
+ for alternative in ${ax_cxx_compile_alternatives}; do
+ for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do
+ cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
+ AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
+ $cachevar,
+ [ac_save_CXX="$CXX"
+ CXX="$CXX $switch"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
+ [eval $cachevar=yes],
+ [eval $cachevar=no])
+ CXX="$ac_save_CXX"])
+ if eval test x\$$cachevar = xyes; then
+ CXX="$CXX $switch"
+ if test -n "$CXXCPP" ; then
+ CXXCPP="$CXXCPP $switch"
+ fi
+ ac_success=yes
+ break
fi
- ac_success=yes
+ done
+ if test x$ac_success = xyes; then
break
fi
done
@@ -131,6 +139,7 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
[define if the compiler supports basic C++$1 syntax])
fi
AC_SUBST(HAVE_CXX$1)
+ m4_if([$1], [17], [AC_MSG_WARN([C++17 is not yet standardized, so the checks may change in incompatible ways anytime])])
])
@@ -148,6 +157,11 @@ m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14],
_AX_CXX_COMPILE_STDCXX_testbody_new_in_14
)
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_17],
+ _AX_CXX_COMPILE_STDCXX_testbody_new_in_11
+ _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
+ _AX_CXX_COMPILE_STDCXX_testbody_new_in_17
+)
dnl Tests for new features in C++11
@@ -518,7 +532,7 @@ namespace cxx14
}
- namespace test_digit_seperators
+ namespace test_digit_separators
{
constexpr auto ten_million = 100'000'000;
@@ -560,3 +574,409 @@ namespace cxx14
#endif // __cplusplus >= 201402L
]])
+
+
+dnl Tests for new features in C++17
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_17], [[
+
+// If the compiler admits that it is not ready for C++17, why torture it?
+// Hopefully, this will speed up the test.
+
+#ifndef __cplusplus
+
+#error "This is not a C++ compiler"
+
+#elif __cplusplus <= 201402L
+
+#error "This is not a C++17 compiler"
+
+#else
+
+#if defined(__clang__)
+ #define REALLY_CLANG
+#else
+ #if defined(__GNUC__)
+ #define REALLY_GCC
+ #endif
+#endif
+
+#include <initializer_list>
+#include <utility>
+#include <type_traits>
+
+namespace cxx17
+{
+
+#if !defined(REALLY_CLANG)
+ namespace test_constexpr_lambdas
+ {
+
+ // TODO: test it with clang++ from git
+
+ constexpr int foo = [](){return 42;}();
+
+ }
+#endif // !defined(REALLY_CLANG)
+
+ namespace test::nested_namespace::definitions
+ {
+
+ }
+
+ namespace test_fold_expression
+ {
+
+ template<typename... Args>
+ int multiply(Args... args)
+ {
+ return (args * ... * 1);
+ }
+
+ template<typename... Args>
+ bool all(Args... args)
+ {
+ return (args && ...);
+ }
+
+ }
+
+ namespace test_extended_static_assert
+ {
+
+ static_assert (true);
+
+ }
+
+ namespace test_auto_brace_init_list
+ {
+
+ auto foo = {5};
+ auto bar {5};
+
+ static_assert(std::is_same<std::initializer_list<int>, decltype(foo)>::value);
+ static_assert(std::is_same<int, decltype(bar)>::value);
+ }
+
+ namespace test_typename_in_template_template_parameter
+ {
+
+ template<template<typename> typename X> struct D;
+
+ }
+
+ namespace test_fallthrough_nodiscard_maybe_unused_attributes
+ {
+
+ int f1()
+ {
+ return 42;
+ }
+
+ [[nodiscard]] int f2()
+ {
+ [[maybe_unused]] auto unused = f1();
+
+ switch (f1())
+ {
+ case 17:
+ f1();
+ [[fallthrough]];
+ case 42:
+ f1();
+ }
+ return f1();
+ }
+
+ }
+
+ namespace test_extended_aggregate_initialization
+ {
+
+ struct base1
+ {
+ int b1, b2 = 42;
+ };
+
+ struct base2
+ {
+ base2() {
+ b3 = 42;
+ }
+ int b3;
+ };
+
+ struct derived : base1, base2
+ {
+ int d;
+ };
+
+ derived d1 {{1, 2}, {}, 4}; // full initialization
+ derived d2 {{}, {}, 4}; // value-initialized bases
+
+ }
+
+ namespace test_general_range_based_for_loop
+ {
+
+ struct iter
+ {
+ int i;
+
+ int& operator* ()
+ {
+ return i;
+ }
+
+ const int& operator* () const
+ {
+ return i;
+ }
+
+ iter& operator++()
+ {
+ ++i;
+ return *this;
+ }
+ };
+
+ struct sentinel
+ {
+ int i;
+ };
+
+ bool operator== (const iter& i, const sentinel& s)
+ {
+ return i.i == s.i;
+ }
+
+ bool operator!= (const iter& i, const sentinel& s)
+ {
+ return !(i == s);
+ }
+
+ struct range
+ {
+ iter begin() const
+ {
+ return {0};
+ }
+
+ sentinel end() const
+ {
+ return {5};
+ }
+ };
+
+ void f()
+ {
+ range r {};
+
+ for (auto i : r)
+ {
+ [[maybe_unused]] auto v = i;
+ }
+ }
+
+ }
+
+ namespace test_lambda_capture_asterisk_this_by_value
+ {
+
+ struct t
+ {
+ int i;
+ int foo()
+ {
+ return [*this]()
+ {
+ return i;
+ }();
+ }
+ };
+
+ }
+
+ namespace test_enum_class_construction
+ {
+
+ enum class byte : unsigned char
+ {};
+
+ byte foo {42};
+
+ }
+
+ namespace test_constexpr_if
+ {
+
+ template <bool cond>
+ int f ()
+ {
+ if constexpr(cond)
+ {
+ return 13;
+ }
+ else
+ {
+ return 42;
+ }
+ }
+
+ }
+
+ namespace test_selection_statement_with_initializer
+ {
+
+ int f()
+ {
+ return 13;
+ }
+
+ int f2()
+ {
+ if (auto i = f(); i > 0)
+ {
+ return 3;
+ }
+
+ switch (auto i = f(); i + 4)
+ {
+ case 17:
+ return 2;
+
+ default:
+ return 1;
+ }
+ }
+
+ }
+
+#if !defined(REALLY_CLANG)
+ namespace test_template_argument_deduction_for_class_templates
+ {
+
+ // TODO: test it with clang++ from git
+
+ template <typename T1, typename T2>
+ struct pair
+ {
+ pair (T1 p1, T2 p2)
+ : m1 {p1},
+ m2 {p2}
+ {}
+
+ T1 m1;
+ T2 m2;
+ };
+
+ void f()
+ {
+ [[maybe_unused]] auto p = pair{13, 42u};
+ }
+
+ }
+#endif // !defined(REALLY_CLANG)
+
+ namespace test_non_type_auto_template_parameters
+ {
+
+ template <auto n>
+ struct B
+ {};
+
+ B<5> b1;
+ B<'a'> b2;
+
+ }
+
+#if !defined(REALLY_CLANG)
+ namespace test_structured_bindings
+ {
+
+ // TODO: test it with clang++ from git
+
+ int arr[2] = { 1, 2 };
+ std::pair<int, int> pr = { 1, 2 };
+
+ auto f1() -> int(&)[2]
+ {
+ return arr;
+ }
+
+ auto f2() -> std::pair<int, int>&
+ {
+ return pr;
+ }
+
+ struct S
+ {
+ int x1 : 2;
+ volatile double y1;
+ };
+
+ S f3()
+ {
+ return {};
+ }
+
+ auto [ x1, y1 ] = f1();
+ auto& [ xr1, yr1 ] = f1();
+ auto [ x2, y2 ] = f2();
+ auto& [ xr2, yr2 ] = f2();
+ const auto [ x3, y3 ] = f3();
+
+ }
+#endif // !defined(REALLY_CLANG)
+
+#if !defined(REALLY_CLANG)
+ namespace test_exception_spec_type_system
+ {
+
+ // TODO: test it with clang++ from git
+
+ struct Good {};
+ struct Bad {};
+
+ void g1() noexcept;
+ void g2();
+
+ template<typename T>
+ Bad
+ f(T*, T*);
+
+ template<typename T1, typename T2>
+ Good
+ f(T1*, T2*);
+
+ static_assert (std::is_same_v<Good, decltype(f(g1, g2))>);
+
+ }
+#endif // !defined(REALLY_CLANG)
+
+ namespace test_inline_variables
+ {
+
+ template<class T> void f(T)
+ {}
+
+ template<class T> inline T g(T)
+ {
+ return T{};
+ }
+
+ template<> inline void f<>(int)
+ {}
+
+ template<> int g<>(int)
+ {
+ return 5;
+ }
+
+ }
+
+} // namespace cxx17
+
+#endif // __cplusplus <= 201402L
+
+]])
diff --git a/m4/ax_cxx_compile_stdcxx_14.m4 b/m4/ax_cxx_compile_stdcxx_14.m4
index 51123f2d58bf1f4b1e71e6c719ce4e4c496dbf28..094db0d025cbb77b35abb3b017d1dcdef809efb5 100644
--- a/m4/ax_cxx_compile_stdcxx_14.m4
+++ b/m4/ax_cxx_compile_stdcxx_14.m4
@@ -1,6 +1,6 @@
-# ============================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx_14.html
-# ============================================================================
+# =============================================================================
+# https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx_14.html
+# =============================================================================
#
# SYNOPSIS
#
@@ -28,7 +28,7 @@
# and this notice are preserved. This file is offered as-is, without any
# warranty.
-#serial 4
+#serial 5
AX_REQUIRE_DEFINED([AX_CXX_COMPILE_STDCXX])
AC_DEFUN([AX_CXX_COMPILE_STDCXX_14], [AX_CXX_COMPILE_STDCXX([14], [$1], [$2])])