execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
message(STATUS "Using GCC version ${GCC_VERSION}")
if(GCC_VERSION VERSION_LESS 4.9)
- if(GCC_VERSION VERSION_LESS 4.3)
- message(FATAL_ERROR "gcc >= 4.3 is required.")
+ if(GCC_VERSION VERSION_LESS 4.6)
+ message(FATAL_ERROR "gcc >= 4.6 is required.")
endif()
# <regex> in gcc is unusable in versions less than 4.9.0
# see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53631
First of all, you will need a recent C++ compiler, where recent means
that the compilers are close to C++11 standard conforming like gcc (at
-least 4.3) or clang.
+least 4.6) or clang.
LyX makes great use of the C++ Standard Template Library (STL).
This means that gcc users will have to install the relevant libstdc++
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 $gxx_version in
- 4.3*|4.4*|4.5*|4.6*|4.7*|4.8*) lyx_std_regex=no ;;
+ 4.6*|4.7*|4.8*) lyx_std_regex=no ;;
*) ;;
esac
fi
AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra"
fi
case $gxx_version in
- 2.*|3.*) AC_ERROR([gcc >= 4.3 is required]);;
- 4.0*|4.1*|4.2*) AC_ERROR([gcc >= 4.3 is required]);;
+ 2.*|3.*) AC_ERROR([gcc >= 4.6 is required]);;
+ 4.0*|4.1*|4.2*|4.3*|4.4*|4.5*) AC_ERROR([gcc >= 4.6 is required]);;
esac
if test x$enable_stdlib_debug = xyes ; then
dnl FIXME: for clang/libc++, one should define _LIBCPP_DEBUG2=0
esac
fi
case $gxx_version in
- 4.3*|4.4*|4.5*|4.6*)
+ 4.6*)
dnl Note that this will define __GXX_EXPERIMENTAL_CXX0X__.
dnl The source code relies on that.
cxx11_flags="-std=c++0x";;