configure: [cygming] Set --disable-embed-stdcxx by default on --enabl…

…e-shared.

Many distros provide stdc++.dll recently. --enable-embed-stdcxx might confuse people.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141875 91177308-0d34-0410-b5e6-96231b3b80d8

autoconf/configure.ac

@@ -580,12 +580,12 @@ esac
 dnl Allow libstdc++ is embedded in LLVM.dll.
 AC_ARG_ENABLE(embed-stdcxx,
   AS_HELP_STRING([--enable-embed-stdcxx],
-                 [Build a shared library with embedded libstdc++ for Win32 DLL (default is YES)]),,
+                 [Build a shared library with embedded libstdc++ for Win32 DLL (default is NO)]),,
                  enableval=default)
 case "$enableval" in
   yes) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
   no)  AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
-  default) AC_SUBST(ENABLE_EMBED_STDCXX,[1]) ;;
+  default) AC_SUBST(ENABLE_EMBED_STDCXX,[0]) ;;
   *) AC_MSG_ERROR([Invalid setting for --enable-embed-stdcxx. Use "yes" or "no"]) ;;
 esac
 

configure

@@ -1409,7 +1409,7 @@ Optional Features:
   --enable-shared         Build a shared library and link tools against it
                           (default is NO)
   --enable-embed-stdcxx   Build a shared library with embedded libstdc++ for
-                          Win32 DLL (default is YES)
+                          Win32 DLL (default is NO)
   --enable-timestamps     Enable embedding timestamp information in build
                           (default is YES)
   --enable-targets        Build specific host targets: all or
@@ -5232,7 +5232,7 @@ case "$enableval" in
  ;;
   no)  ENABLE_EMBED_STDCXX=0
  ;;
-  default) ENABLE_EMBED_STDCXX=1
+  default) ENABLE_EMBED_STDCXX=0
  ;;
   *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-embed-stdcxx. Use \"yes\" or \"no\"" >&5
 echo "$as_me: error: Invalid setting for --enable-embed-stdcxx. Use \"yes\" or \"no\"" >&2;}