re PR libstdc++/38919 (math_stubs_long_double.cc: error: redefinition of 'long…

re PR libstdc++/38919 (math_stubs_long_double.cc: error: redefinition of 'long double ...' vs. /usr/x86_64-mingw32/include/math.h)

2009-01-20  Benjamin Kosnik  <bkoz@redhat.com>
            Rainer Emrich  <r.emrich@de.tecosim.com>

	PR libstdc++/38919
	* crossconfig.m4: Use GLIBCXX_CHECK_MATH_SUPPORT and
	GLIBCXX_CHECK_STDLIB_SUPPORT for mingw crosses.
	* configure: Regenerate.


Co-Authored-By: Rainer Emrich <r.emrich@de.tecosim.com>

From-SVN: r143526

libstdc++-v3/ChangeLog

+2009-01-20  Benjamin Kosnik  <bkoz@redhat.com>
+            Rainer Emrich  <r.emrich@de.tecosim.com>
+
+	PR libstdc++/38919
+	* crossconfig.m4: Use GLIBCXX_CHECK_MATH_SUPPORT and
+	GLIBCXX_CHECK_STDLIB_SUPPORT for mingw crosses.
+	* configure: Regenerate.
+
 2009-01-18  Jonathan Wakely  <jwakely.gcc@gmail.com>
 
 	* include/std/thread (__thread_data_base::__run): Make non-const.

libstdc++-v3/crossconfig.m4

@@ -141,9 +141,9 @@ case "${host}" in
     AM_ICONV
     ;;
   *-mingw32*)
-    AC_DEFINE(HAVE_STRTOF)
-    AC_DEFINE(HAVE_STRTOLD)
     GLIBCXX_CHECK_LINKER_FEATURES
+    GLIBCXX_CHECK_MATH_SUPPORT
+    GLIBCXX_CHECK_STDLIB_SUPPORT
     ;;
   *-netbsd*)
     SECTION_FLAGS='-ffunction-sections -fdata-sections'