Do not honor stdlib-debug when c++library is not gcc's libstdc++

[features.git] / config / lyxinclude.m4

diff --git a/config/lyxinclude.m4 b/config/lyxinclude.m4
index 9fe42e884747490912f170b7145d670a4feade83..0e9b426061af5f7d8dc276f24ec8679117c08450 100644 (file)
--- a/config/lyxinclude.m4
+++ b/config/lyxinclude.m4
@@ -408,10 +408,13 @@ if test x$GXX = xyes; then
   fi
   dnl Warnings are for preprocessor too
   if test x$enable_warnings = xyes ; then
-      case $gxx_version in
-         9.*) AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra -Wno-deprecated-copy";;
-         *) AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra";;
-      esac
+      AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra"
+      dnl Shut off warning -Wdeprecated-copy, which triggers too much
+      dnl note that g++ always accepts -Wno-xxx, even when -Wxxx is an error.
+      AC_LANG_PUSH(C++)
+      AX_CHECK_COMPILE_FLAG([-Wno-deprecated-copy],
+       [AM_CXXFLAGS="$AM_CXXFLAGS -Wno-deprecated-copy"], [], [-Werror])
+      AC_LANG_POP(C++)
     fi
   case $gxx_version in
       2.*|3.*|4.@<:@0-6@:>@) AC_MSG_ERROR([gcc >= 4.7 is required]);;
@@ -419,14 +422,14 @@ if test x$GXX = xyes; then
   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 $gxx_version in
-      *)
+    if test x$lyx_cv_lib_stdcxx = xyes ; then
         lyx_flags="$lyx_flags stdlib-debug"
        AC_DEFINE(_GLIBCXX_DEBUG, 1, [libstdc++ debug mode])
        AC_DEFINE(_GLIBCXX_DEBUG_PEDANTIC, 1, [libstdc++ pedantic debug mode])
        AC_SUBST(STDLIB_DEBUG, "-D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC")
-        ;;
-    esac
+    else
+       enable_stdlib_debug=no
+    fi
   fi
 fi
 
@@ -606,6 +609,21 @@ dnl prevent clash with system zlib that might be dragged in by other libs
 ])
 
 
+dnl Usage: LYX_BUILD_INCLUDED_DTL : select if the included dtl should
+dnl        be built and installed.
+AC_DEFUN([LYX_BUILD_INCLUDED_DTL],[
+       AC_MSG_CHECKING([whether to build dv2dt and dt2dv])
+       AC_ARG_WITH(included-dtl,
+           [AS_HELP_STRING([--with-included-dtl], [build and install the dv2dt and dt2dv programs supplied with LyX])],
+           [lyx_cv_with_included_dtl=$withval],
+           [lyx_cv_with_included_dtl=no])
+       AM_CONDITIONAL(BUILD_INCLUDED_DTL, test x$lyx_cv_with_included_dtl = xyes)
+       AC_MSG_RESULT([$lyx_cv_with_included_dtl])
+       if test x$lyx_cv_with_included_dtl = xyes ; then
+           lyx_flags="$lyx_flags build-dtl"
+       fi])
+
+
 dnl Usage: LYX_CHECK_CALLSTACK_PRINTING: define LYX_CALLSTACK_PRINTING if the
 dnl        necessary APIs are available to print callstacks.
 AC_DEFUN([LYX_CHECK_CALLSTACK_PRINTING],