Update top level configure files by synchronizing them with gcc.

[deliverable/binutils-gdb.git] / config / gcc-plugin.m4

diff --git a/config/gcc-plugin.m4 b/config/gcc-plugin.m4
index dd06a58cd1329aaee15b1e8624467dbd2e91a1f4..38b2ae6e12e6b5d0d3b9cdfd88eebeaec6841596 100644 (file)
--- a/config/gcc-plugin.m4
+++ b/config/gcc-plugin.m4
@@ -19,8 +19,21 @@ AC_DEFUN([GCC_ENABLE_PLUGINS],
    enable_plugin=yes; default_plugin=yes)
 
    pluginlibs=
+   plugin_check=yes
 
    case "${host}" in
+     *-*-mingw*)
+       # Since plugin support under MinGW is not as straightforward as on
+       # other platforms (e.g., we have to link import library, etc), we
+       # only enable it if explicitly requested.
+       if test x"$default_plugin" = x"yes"; then
+         enable_plugin=no
+       elif test x"$enable_plugin" = x"yes"; then
+         # Use make's target variable to derive import library name.
+         pluginlibs='-Wl,--export-all-symbols -Wl,--out-implib=[$]@.a'
+        plugin_check=no
+       fi
+     ;;
      *-*-darwin*)
        if test x$build = x$host; then
         export_sym_check="nm${exeext} -g"
@@ -41,7 +54,7 @@ AC_DEFUN([GCC_ENABLE_PLUGINS],
      ;;
    esac
 
-   if test x"$enable_plugin" = x"yes"; then
+   if test x"$enable_plugin" = x"yes" -a x"$plugin_check" = x"yes"; then
 
      AC_MSG_CHECKING([for exported symbols])
      if test "x$export_sym_check" != x; then