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autoconf: Check for C++11 and std::regex soon in LYX_PROG_CXX

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This makes the test for std::regex a bit faster.
This commit is contained in:
Jean-Marc Lasgouttes 2016-07-18 11:53:30 +02:00
parent fb84ccd9fb
commit c58967a5ff
1 changed files with 3 additions and 9 deletions
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12
config/lyxinclude.m4
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@ -170,7 +170,6 @@ AC_DEFUN([LYX_CXX_CXX11_FLAGS],
CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
save_CXXFLAGS=$CXXFLAGS
CXXFLAGS="$flag $AM_CXXFLAGS $CXXFLAGS"
AC_LANG_PUSH(C++)
dnl sample openmp source code to test
AC_TRY_COMPILE([
template <typename T>
@ -197,7 +196,6 @@ AC_DEFUN([LYX_CXX_CXX11_FLAGS],
auto d = a;], [],
[lyx_cv_cxx11_flags=$flag; break])
AC_LANG_POP(C++)
CXXFLAGS=$save_CXXFLAGS
CPPFLAGS=$save_CPPFLAGS
done])
@ -220,7 +218,6 @@ AC_DEFUN([LYX_CXX_USE_REGEX],
CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
save_CXXFLAGS=$CXXFLAGS
CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
AC_LANG_PUSH(C++)
# The following code snippet has been taken taken from example in
# http://stackoverflow.com/questions/8561850/compile-stdregex-iterator-with-gcc
AC_TRY_LINK(
@ -237,7 +234,6 @@ AC_DEFUN([LYX_CXX_USE_REGEX],
Myiter next(pat, pat + strlen(pat), rx);
Myiter end;
], [lyx_std_regex=yes], [lyx_std_regex=no])
AC_LANG_POP(C++)
CXXFLAGS=$save_CXXFLAGS
CPPFLAGS=$save_CPPFLAGS
AC_MSG_RESULT([$lyx_std_regex])
@ -284,8 +280,10 @@ AC_REQUIRE([AC_PROG_CXXCPP])
AC_LANG_PUSH(C++)
LYX_PROG_CLANG
LYX_CXX_CXX11_FLAGS
LYX_LIB_STDCXX
LYX_LIB_STDCXX_CXX11_ABI
LYX_CXX_USE_REGEX
AC_LANG_POP(C++)
if test $lyx_cv_lib_stdcxx = "yes" ; then
@ -362,7 +360,7 @@ if test x$GXX = xyes; then
CXX_VERSION="($clang_version)"
fi
AM_CXXFLAGS="$lyx_optim"
AM_CXXFLAGS="$lyx_optim $AM_CXXFLAGS"
if test x$enable_debug = xyes ; then
AM_CXXFLAGS="-g $AM_CXXFLAGS"
fi
@ -398,8 +396,6 @@ if test x$GXX = xyes; then
fi
fi
LYX_CXX_CXX11_FLAGS
# Some additional flags may be needed
if test x$GXX = xyes; then
case $gxx_version in
@ -412,8 +408,6 @@ if test x$GXX = xyes; then
AM_CXXFLAGS="$AM_CXXFLAGS -Wno-deprecated-register";;
esac
fi
LYX_CXX_USE_REGEX
])
dnl Usage: LYX_USE_INCLUDED_BOOST : select if the included boost should