mirror of
https://github.com/qbittorrent/qBittorrent.git
synced 2024-11-27 03:30:34 +00:00
Autotools: Improve handling of C++ mode
This commit is contained in:
sledgehammer999
parent
5efdd211cc
commit
8f5bbe24ce
129
configure
vendored
129
configure
vendored
@ -5013,12 +5013,6 @@ CPPFLAGS="$BOOST_CPPFLAGS $CPPFLAGS"
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LDFLAGS="$BOOST_LDFLAGS $LDFLAGS"
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# add workaround for problematic boost version
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ac_ext=cpp
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ac_cpp='$CXXCPP $CPPFLAGS'
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ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
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# taken from ax_boost_base.m4
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@ -5039,12 +5033,6 @@ else
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QBT_ADD_DEFINES="$QBT_ADD_DEFINES BOOST_NO_CXX11_RVALUE_REFERENCES"
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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ac_ext=cpp
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ac_cpp='$CXXCPP $CPPFLAGS'
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ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
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@ -5495,25 +5483,17 @@ $as_echo "yes" >&6; }
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LIBS="$zlib_LIBS $LIBS"
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fi
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# Check compiler C++11 support
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ac_ext=cpp
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ac_cpp='$CXXCPP $CPPFLAGS'
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ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
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_tmp="$CXXFLAGS"
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CXXFLAGS="$CXXFLAGS -std=c++11"
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# Check if already in >= C++11 mode because of the flags returned by one of the above packages
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler is using C++11 or later mode" >&5
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$as_echo_n "checking if compiler is using C++11 or later mode... " >&6; }
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#ifndef __cplusplus
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#error "This is not a C++ compiler"
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#elif __cplusplus < 201103L
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#error "This is not a C++11 compiler"
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#endif
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#ifndef __cplusplus
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#error "This is not a C++ compiler"
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#elif __cplusplus < 201103L
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#error "This is not a C++11 compiler"
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#endif
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int
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main ()
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{
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@ -5521,25 +5501,34 @@ main ()
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;
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return 0;
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}
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_ACEOF
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if ac_fn_cxx_try_compile "$LINENO"; then :
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
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$as_echo "yes" >&6; }
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QBT_CXX11_FOUND="yes"
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else
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as_fn_error $? "A compiler supporting C++11 is required." "$LINENO" 5
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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QBT_CXX11_FOUND="no"
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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CXXFLAGS="$_tmp"
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_tmp="$CXXFLAGS"
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CXXFLAGS="$CXXFLAGS $libtorrent_CFLAGS"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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# In case of no, check if the compiler can support at least C++11
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# and if yes, enable it leaving a warning to the user
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if test "x$QBT_CXX11_FOUND" = "xno"; then :
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler supports C++11" >&5
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$as_echo_n "checking if compiler supports C++11... " >&6; }
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TMP_CPPFLAGS="$CPPFLAGS"
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CPPFLAGS="$CPPFLAGS -std=c++11"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#ifndef __cplusplus
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#error "This is not a C++ compiler"
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#elif __cplusplus < 201103L
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#error "This is not a C++11 compiler"
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#endif
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#ifndef __cplusplus
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#error "This is not a C++ compiler"
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#elif __cplusplus < 201103L
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#error "This is not a C++11 compiler"
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#endif
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int
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main ()
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{
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@ -5547,22 +5536,58 @@ main ()
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;
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return 0;
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}
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_ACEOF
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if ac_fn_cxx_try_compile "$LINENO"; then :
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
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$as_echo "yes" >&6; }
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if C++11 is disabled by the set compiler flags" >&5
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$as_echo_n "checking if C++11 is disabled by the set compiler flags... " >&6; }
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# prepend the flag so it won't override conflicting user defined flags
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CPPFLAGS="-std=c++11 $TMP_CPPFLAGS"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#ifndef __cplusplus
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#error "This is not a C++ compiler"
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#elif __cplusplus < 201103L
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#error "This is not a C++11 compiler"
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#endif
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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if ac_fn_cxx_try_compile "$LINENO"; then :
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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CPPFLAGS="$TMP_CPPFLAGS -std=c++11"
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: C++11 mode is now force enabled.
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Make sure you use the same C++ mode for qBittorrent and its dependencies.
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To explicitly set qBittorrent to a later mode use CPPFLAGS.
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Example: \`CPPFLAGS=\"\$CPPFLAGS -std=c++14\" ./configure\`" >&5
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$as_echo "$as_me: WARNING: C++11 mode is now force enabled.
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Make sure you use the same C++ mode for qBittorrent and its dependencies.
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To explicitly set qBittorrent to a later mode use CPPFLAGS.
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Example: \`CPPFLAGS=\"\$CPPFLAGS -std=c++14\" ./configure\`" >&2;}
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else
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as_fn_error $? "Compiler is not working in C++11 or later mode.
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Make sure you use the same C++ mode for qBittorrent and its dependencies.
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Example: \`CXXFLAGS=\"\$CXXFLAGS -std=c++11\" ./configure\`" "$LINENO" 5
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
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$as_echo "yes" >&6; }
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as_fn_error $? "The compiler supports C++11 but the user or a dependency has explicitly enabled a lower mode." "$LINENO" 5
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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as_fn_error $? "A compiler supporting C++11 is required." "$LINENO" 5
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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CXXFLAGS="$_tmp"
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ac_ext=cpp
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ac_cpp='$CXXCPP $CPPFLAGS'
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ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
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fi
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# These are required because autoconf doesn't expand these **particular**
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# vars automatically. And qmake cannot autoexpand them.
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@ -5650,15 +5675,15 @@ extract() {
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for i in $string; do
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case "$(echo "$i" | cut -c1)" in
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'') ;;
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D) QBT_CONF_DEFINES="$(echo $i | cut -c2-) $QBT_CONF_DEFINES";;
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I) QBT_CONF_INCLUDES="$(echo $i | cut -c2-) $QBT_CONF_INCLUDES";;
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*) QBT_CONF_EXTRA_CFLAGS="-$i $QBT_CONF_EXTRA_CFLAGS";;
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D) QBT_CONF_DEFINES="$QBT_CONF_DEFINES $(echo $i | cut -c2-)";;
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I) QBT_CONF_INCLUDES="$QBT_CONF_INCLUDES $(echo $i | cut -c2-)";;
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*) QBT_CONF_EXTRA_CFLAGS="$QBT_CONF_EXTRA_CFLAGS -$i";;
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esac
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done
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IFS=$SAVEIFS
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}
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extract "$CFLAGS $CPPFLAGS $CXXFLAGS"
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extract "$CFLAGS $CXXFLAGS $CPPFLAGS"
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QBT_ADD_DEFINES="$QBT_ADD_DEFINES $QBT_CONF_DEFINES"
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# Substitute the values of these vars in conf.pri.in
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64
configure.ac
64
configure.ac
@ -167,7 +167,6 @@ CPPFLAGS="$BOOST_CPPFLAGS $CPPFLAGS"
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LDFLAGS="$BOOST_LDFLAGS $LDFLAGS"
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# add workaround for problematic boost version
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AC_LANG_PUSH(C++)
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# taken from ax_boost_base.m4
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m4_define([DETECT_BOOST_VERSION_PROGRAM],
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[AC_LANG_PROGRAM([[#include <boost/version.hpp>]],
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@ -175,7 +174,6 @@ m4_define([DETECT_BOOST_VERSION_PROGRAM],
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AC_COMPILE_IFELSE([DETECT_BOOST_VERSION_PROGRAM(106000)], [],
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[QBT_ADD_DEFINES="$QBT_ADD_DEFINES BOOST_NO_CXX11_RVALUE_REFERENCES"])
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AC_LANG_POP([C++])
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AX_BOOST_SYSTEM()
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AC_MSG_NOTICE([Boost.System LIB: "$BOOST_SYSTEM_LIB"])
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@ -202,31 +200,37 @@ PKG_CHECK_MODULES(zlib,
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[CPPFLAGS="$zlib_CFLAGS $CPPFLAGS"
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LIBS="$zlib_LIBS $LIBS"])
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# Check compiler C++11 support
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AC_LANG_PUSH(C++)
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m4_define([DETECT_CPP11_PROGRAM],
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[AC_LANG_PROGRAM([[
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#ifndef __cplusplus
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#error "This is not a C++ compiler"
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#elif __cplusplus < 201103L
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#error "This is not a C++11 compiler"
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#endif]],
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[[]])])
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_tmp="$CXXFLAGS"
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CXXFLAGS="$CXXFLAGS -std=c++11"
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# Check if already in >= C++11 mode because of the flags returned by one of the above packages
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AC_MSG_CHECKING([if compiler is using C++11 or later mode])
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AC_COMPILE_IFELSE([DETECT_CPP11_PROGRAM()],
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[],
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[AC_MSG_ERROR([A compiler supporting C++11 is required.])])
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CXXFLAGS="$_tmp $libtorrent_CFLAGS"
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AC_COMPILE_IFELSE([DETECT_CPP11_PROGRAM()],
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[],
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[AC_MSG_ERROR([Compiler is not working in C++11 or later mode.
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Make sure you use the same C++ mode for qBittorrent and its dependencies.
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Example: `CXXFLAGS="\$CXXFLAGS -std=c++11" ./configure`])])
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CXXFLAGS="$_tmp"
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AC_LANG_POP([C++])
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[AC_MSG_RESULT([yes])
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QBT_CXX11_FOUND="yes"],
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[AC_MSG_RESULT([no])
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QBT_CXX11_FOUND="no"])
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# In case of no, check if the compiler can support at least C++11
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# and if yes, enable it leaving a warning to the user
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AS_IF([test "x$QBT_CXX11_FOUND" = "xno"],
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[AC_MSG_CHECKING([if compiler supports C++11])
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TMP_CPPFLAGS="$CPPFLAGS"
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CPPFLAGS="$CPPFLAGS -std=c++11"
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AC_COMPILE_IFELSE([DETECT_CPP11_PROGRAM()],
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[AC_MSG_RESULT([yes])
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AC_MSG_CHECKING([if C++11 is disabled by the set compiler flags])
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# prepend the flag so it won't override conflicting user defined flags
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CPPFLAGS="-std=c++11 $TMP_CPPFLAGS"
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AC_COMPILE_IFELSE([DETECT_CPP11_PROGRAM()],
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[AC_MSG_RESULT([no])
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CPPFLAGS="$TMP_CPPFLAGS -std=c++11"
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AC_MSG_WARN([C++11 mode is now force enabled.
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Make sure you use the same C++ mode for qBittorrent and its dependencies.
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To explicitly set qBittorrent to a later mode use CPPFLAGS.
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Example: `CPPFLAGS="\$CPPFLAGS -std=c++14" ./configure`])],
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[AC_MSG_RESULT([yes])
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AC_MSG_ERROR([The compiler supports C++11 but the user or a dependency has explicitly enabled a lower mode.])])],
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[AC_MSG_RESULT([no])
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AC_MSG_ERROR([A compiler supporting C++11 is required.])])
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])
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# These are required because autoconf doesn't expand these **particular**
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# vars automatically. And qmake cannot autoexpand them.
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@ -254,15 +258,15 @@ extract() {
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for i in $string; do
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case "$(echo "$i" | cut -c1)" in
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'') ;;
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D) QBT_CONF_DEFINES="$(echo $i | cut -c2-) $QBT_CONF_DEFINES";;
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I) QBT_CONF_INCLUDES="$(echo $i | cut -c2-) $QBT_CONF_INCLUDES";;
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*) QBT_CONF_EXTRA_CFLAGS="-$i $QBT_CONF_EXTRA_CFLAGS";;
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D) QBT_CONF_DEFINES="$QBT_CONF_DEFINES $(echo $i | cut -c2-)";;
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I) QBT_CONF_INCLUDES="$QBT_CONF_INCLUDES $(echo $i | cut -c2-)";;
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*) QBT_CONF_EXTRA_CFLAGS="$QBT_CONF_EXTRA_CFLAGS -$i";;
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esac
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done
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IFS=$SAVEIFS
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}
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extract "$CFLAGS $CPPFLAGS $CXXFLAGS"
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extract "$CFLAGS $CXXFLAGS $CPPFLAGS"
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QBT_ADD_DEFINES="$QBT_ADD_DEFINES $QBT_CONF_DEFINES"
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# Substitute the values of these vars in conf.pri.in
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@ -36,3 +36,16 @@ AC_DEFUN([FIND_QTDBUS],
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[AC_MSG_RESULT([not found])
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HAVE_QTDBUS=[false]])
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])
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# DETECT_CPP11_PROGRAM()
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# Detects if at least C++11 mode is enabled.
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# --------------------------------------
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AC_DEFUN([DETECT_CPP11_PROGRAM],
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[AC_LANG_PROGRAM([[
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#ifndef __cplusplus
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#error "This is not a C++ compiler"
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#elif __cplusplus < 201103L
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#error "This is not a C++11 compiler"
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#endif]],
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[[]])
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])
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