More configuration updates for OpenSolaris

This patch updates the shared and PICFLAGS to support the Sun compiler.
It also reorganizes how the dependency and warning flags are set.

aclocal.m4

@@ -127,6 +127,13 @@ case "${host}" in
      *-*-darwin*)
         shared="-bundle -undefined suppress -flat_namespace"
         ;;
+
+     *-*-solaris*)
+        if test ${using_sunpro} = 1
+        then
+           shared="-G"
+        fi
+        ;;
 esac
 AC_SUBST(shared)
 AC_MSG_RESULT($shared)
@@ -153,6 +160,12 @@ case "${host}" in
         PICFLAG=+z
         ;;
 
+     *-*-solaris*)
+        if test ${using_sunpro} = 1
+        then
+           PICFLAG=-G
+        fi
+        ;;
 esac
 AC_SUBST(PICFLAG)
 AC_MSG_RESULT($PICFLAG)

configure.in

@@ -58,10 +58,19 @@ AC_SUBST(EXEEXT)
 # Combined check for Microsoft-related bogosities; sets WIN32 if found
 AX_WIN32
 
-AC_CHECK_DECL(__SUNPRO_C, AC_SUBST(DEPENDENCY_FLAG, [-xMMD]),
-                          AC_SUBST(DEPENDENCY_FLAG, [-MD]))
-AC_CHECK_DECL(__SUNPRO_C, AC_SUBST(WARNING_FLAGS, []),
-                          AC_SUBST(WARNING_FLAGS, ["-Wall -Wshadow"]))
+# Check to see if we are using the SUN compiler. If so then configure
+# some of the flags to match the SUN compiler syntax. This is also used
+# in the aclocal.m4 file to configure the flags used to build and link
+# dynamic libraries
+AC_CHECK_DECL(__SUNPRO_C, using_sunpro=1, using_sunpro=0)
+if test ${using_sunpro} = 1
+then
+AC_SUBST(DEPENDENCY_FLAG, [-xMMD])
+AC_SUBST(WARNING_FLAGS, [""])
+else
+AC_SUBST(DEPENDENCY_FLAG, [-MD])
+AC_SUBST(WARNING_FLAGS, ["-Wall -Wshadow"])
+fi
 
 AC_LANG(C++)