])dnl
-AC_DEFUN([LYX_PROG_CXX_WORKS],
-[rm -f conftest.C
-cat >conftest.C <<EOF
-class foo {
- // we require the mutable keyword
- mutable int bar;
- };
- // we require namespace support
- namespace baz {
- int bar;
- }
- int main() {
- return(0);
- }
-EOF
-$CXX -c $CXXFLAGS $CPPFLAGS conftest.C >&5 || CXX=
-rm -f conftest.C conftest.o conftest.obj || true
-])
-
-
dnl Usage: LYX_PROG_CLANG: set lyx_cv_prog_clang to yes if the compiler is clang.
AC_DEFUN([LYX_PROG_CLANG],
[AC_CACHE_CHECK([whether the compiler is clang],
AC_DEFUN([LYX_PROG_CXX],
-[AC_MSG_CHECKING([for a good enough C++ compiler])
-LYX_SEARCH_PROG(CXX, $CXX $CCC g++ gcc c++ CC cxx xlC cc++, [LYX_PROG_CXX_WORKS])
-
-if test -z "$CXX" ; then
- AC_MSG_ERROR([Unable to find a good enough C++ compiler])
-fi
-AC_MSG_RESULT($CXX)
-
-AC_REQUIRE([AC_PROG_CXX])
+[AC_REQUIRE([AC_PROG_CXX])
AC_REQUIRE([AC_PROG_CXXCPP])
AC_LANG_PUSH(C++)
LYX_PROG_CLANG
case $enable_optimization in
yes)
if test $lyx_devel_version = yes ; then
- lyx_opt=-O
+ lyx_optim=-O
else
- lyx_opt=-O2
+ lyx_optim=-O2
fi;;
- no) lyx_opt=;;
- *) lyx_opt=${enable_optimization};;
+ no) lyx_optim=;;
+ *) lyx_optim=${enable_optimization};;
esac
AC_ARG_ENABLE(pch,
dnl Useful for global version info
gxx_version=`${CXX} -dumpversion`
CXX_VERSION="($gxx_version)"
+ else
+ gxx_version=clang
fi
- if test "$ac_test_CXXFLAGS" = set; then
- CXXFLAGS="$ac_save_CXXFLAGS"
- else
- CFLAGS="$lyx_opt"
- CXXFLAGS="$lyx_opt"
- if test x$enable_debug = xyes ; then
- CFLAGS="-g $CFLAGS"
- CXXFLAGS="-g $CXXFLAGS"
- fi
- if test $build_type = gprof ; then
- CFLAGS="-pg $CFLAGS"
- CXXFLAGS="-pg $CXXFLAGS"
- LDFLAGS="-pg $LDFLAGS"
- fi
- if test $build_type = profiling ; then
- CFLAGS="$CFLAGS -fno-omit-frame-pointer"
- CXXFLAGS="$CXXFLAGS -fno-omit-frame-pointer"
- fi
+ AM_CXXFLAGS="$lyx_optim"
+ if test x$enable_debug = xyes ; then
+ AM_CXXFLAGS="-g $AM_CXXFLAGS"
fi
- if test "$ac_env_CPPFLAGS_set" != set; then
- if test x$USE_QT5 = xyes ; then
- AS_CASE([$host], [*mingw*|*cygwin*], [], [CPPFLAGS="-fPIC $CPPFLAGS"])
- fi
- if test x$enable_warnings = xyes ; then
- case $gxx_version in
- 3.1*|3.2*|3.3*)
- CPPFLAGS="-W -Wall $CPPFLAGS"
- ;;
- *)
- CPPFLAGS="-Wextra -Wall $CPPFLAGS "
- ;;
- esac
- fi
+ if test $build_type = gprof ; then
+ AM_CXXFLAGS="-pg $AM_CXXFLAGS"
+ AM_LDFLAGS="-pg $AM_LDFLAGS"
+ fi
+ if test $build_type = profiling ; then
+ AM_CXXFLAGS="$AM_CXXFLAGS -fno-omit-frame-pointer"
+ fi
+
+ if test x$USE_QT5 = xyes ; then
+ AS_CASE([$host], [*mingw*|*cygwin*], [], [AM_CXXFLAGS="-fPIC $AM_CXXFLAGS"])
+ fi
+ dnl Warnings are for preprocessor too
+ if test x$enable_warnings = xyes ; then
+ case $gxx_version in
+ 3.1*|3.2*|3.3*)
+ AM_CPPFLAGS="-W -Wall $AM_CPPFLAGS"
+ ;;
+ 3.4*|4.[0-8]*|clang)
+ AM_CPPFLAGS="-Wextra -Wall $AM_CPPFLAGS"
+ ;;
+ *)
+ AM_CPPFLAGS="-Wextra -Wall -Wfloat-conversion $AM_CPPFLAGS"
+ ;;
+ esac
fi
case $gxx_version in
3.1*) AM_CXXFLAGS="-finline-limit=500 ";;
AM_CXXFLAGS=""
test $enable_pch = yes && lyx_pch_comp=yes
;;
- *) AM_CXXFLAGS="";;
esac
if test x$enable_stdlib_debug = xyes ; then
dnl FIXME: for clang/libc++, one should define _LIBCPP_DEBUG2=0
dnl See http://clang-developers.42468.n3.nabble.com/libc-debug-mode-td3336742.html
case $gxx_version in
- 3.4*|4.*)
+ 3.[123]) ;;
+ *)
lyx_flags="$lyx_flags stdlib-debug"
AC_DEFINE(_GLIBCXX_DEBUG, 1, [libstdc++ debug mode])
AC_DEFINE(_GLIBCXX_DEBUG_PEDANTIC, 1, [libstdc++ pedantic debug mode])
esac
fi
if test x$enable_cxx11 = xyes ; then
- dnl FIXME: check what to do with clang (is anything needed at all?)
+ case $gxx_version in
+ 3.*|4.[012]*) AC_ERROR([There is no C++11 support in gcc 3.x]);;
+ 4.[3-6]*)
+ lyx_flags="$lyx_flags c++11-mode"
+ AM_CXXFLAGS="-std=gnu++0x $AM_CXXFLAGS";;
+ clang)
+ dnl presumably all clang version support c++11.
+ lyx_flags="$lyx_flags c++11-mode"
+ dnl the deprecated-register warning is very annoying with Qt4.x right now.
+ AM_CXXFLAGS="-std=c++11 -Wno-deprecated-register $AM_CXXFLAGS";;
+ *)
+ lyx_flags="$lyx_flags c++11-mode"
+ AM_CXXFLAGS="-std=gnu++11 $AM_CXXFLAGS"
+ ;;
+ esac
+ if test x$CLANG = xno || test $lyx_cv_lib_stdcxx = yes; then
+ dnl <regex> in gcc is unusable in versions less than 4.9.0
+ dnl see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53631
case $gxx_version in
- 4.3*|4.4*|4.5*|4.6*)
- lyx_flags="$lyx_flags c++11-mode"
- CXXFLAGS="-std=gnu++0x $CXXFLAGS"
- ;;
- 4.7*|4.8*|4.9*)
- lyx_flags="$lyx_flags c++11-mode"
- CXXFLAGS="-std=gnu++11 $CXXFLAGS"
- ;;
+ 3.*|4.[0-8]*) ;;
+ *) lyx_flags="$lyx_flags stdregex"
+ lyx_std_regex=yes
+ ;;
esac
- if test x$CLANG = xno || test $lyx_cv_lib_stdcxx = yes; then
- dnl <regex> in gcc is unusable in versions less than 4.9.0
- dnl see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53631
- case $gxx_version in
- 4.9*)
- lyx_flags="$lyx_flags stdregex"
- lyx_std_regex=yes
- ;;
- esac
- else
- lyx_flags="$lyx_flags stdregex"
- lyx_std_regex=yes
- fi
+ else
+ lyx_flags="$lyx_flags stdregex"
+ lyx_std_regex=yes
+ fi
- if test $lyx_std_regex = yes ; then
- AC_DEFINE([LYX_USE_STD_REGEX], 1, [define to 1 if std::regex should be preferred to boost::regex])
- fi
+ if test $lyx_std_regex = yes ; then
+ AC_DEFINE([LYX_USE_STD_REGEX], 1, [define to 1 if std::regex should be preferred to boost::regex])
+ fi
fi
fi
AM_CONDITIONAL([LYX_USE_STD_REGEX], test $lyx_std_regex = yes)
projects / features.git / blobdiff