linkage.m4 (GLIBCXX_CHECK_MATH_SUPPORT): Check for libmx also.

2004-04-23  Andrew Pinski  <pinskia@physics.uc.edu>

        * linkage.m4 (GLIBCXX_CHECK_MATH_SUPPORT): Check for libmx also.
        * configure: Regenerate.

From-SVN: r81103

libstdc++-v3/ChangeLog

+2004-04-23  Andrew Pinski  <pinskia@physics.uc.edu>
+
+	* linkage.m4 (GLIBCXX_CHECK_MATH_SUPPORT): Check for libmx also.
+	* configure: Regenerate.
+
 2004-04-23  Daniel Jacobowitz  <drow@mvista.com>
 
 	PR libstdc++/15047, libstdc++/11610

libstdc++-v3/configure

@@ -8447,6 +8447,81 @@ fi
   ac_save_LIBS="$LIBS"
   LIBS="$LIBS $libm"
 
+    echo "$as_me:$LINENO: checking for sqrtf in -lmx" >&5
+echo $ECHO_N "checking for sqrtf in -lmx... $ECHO_C" >&6
+if test "${ac_cv_lib_mx_sqrtf+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lmx  $LIBS"
+if test x$gcc_no_link = xyes; then
+  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
+echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char sqrtf ();
+int
+main ()
+{
+sqrtf ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_mx_sqrtf=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_mx_sqrtf=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_mx_sqrtf" >&5
+echo "${ECHO_T}$ac_cv_lib_mx_sqrtf" >&6
+if test $ac_cv_lib_mx_sqrtf = yes; then
+  libmx="-lmx"
+fi
+
+    LIBS="$LIBS $libmx"
+
 
 
   echo "$as_me:$LINENO: checking for isinf declaration" >&5
@@ -31598,6 +31673,81 @@ fi
   ac_save_LIBS="$LIBS"
   LIBS="$LIBS $libm"
 
+    echo "$as_me:$LINENO: checking for sqrtf in -lmx" >&5
+echo $ECHO_N "checking for sqrtf in -lmx... $ECHO_C" >&6
+if test "${ac_cv_lib_mx_sqrtf+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lmx  $LIBS"
+if test x$gcc_no_link = xyes; then
+  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
+echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char sqrtf ();
+int
+main ()
+{
+sqrtf ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_mx_sqrtf=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_mx_sqrtf=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_mx_sqrtf" >&5
+echo "${ECHO_T}$ac_cv_lib_mx_sqrtf" >&6
+if test $ac_cv_lib_mx_sqrtf = yes; then
+  libmx="-lmx"
+fi
+
+    LIBS="$LIBS $libmx"
+
 
 
   echo "$as_me:$LINENO: checking for isinf declaration" >&5

libstdc++-v3/linkage.m4

@@ -404,6 +404,11 @@ AC_DEFUN([GLIBCXX_CHECK_MATH_SUPPORT], [
   ac_save_LIBS="$LIBS"
   LIBS="$LIBS $libm"
 
+  dnl Check libmx
+  AC_CHECK_LIB(mx, sqrtf, libmx="-lmx")
+  dnl ac_save_LIBS="$LIBS"
+  LIBS="$LIBS $libmx"
+
   dnl Check to see if certain C math functions exist.
   GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
   GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)