Set the proper build flags for Darwin based on the CPU type instead of
assuming PowerPC.

diff --git a/configure b/configure
index 2df1b2d..bec8818 100755
--- a/configure
+++ b/configure
@@ -311,7 +311,7 @@
 # include <unistd.h>
 #endif"
 
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS DLLDEFS build build_cpu build_vendor build_os host host_cpu host_vendor host_os WIN16_FILES WIN16_INSTALL SET_MAKE CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CXX CXXFLAGS ac_ct_CXX CPPBIN ac_ct_CPPBIN TOOLSDIR CPP X_CFLAGS X_PRE_LIBS X_LIBS X_EXTRA_LIBS LEX LEXLIB LEX_OUTPUT_ROOT XLEX BISON AS ac_ct_AS LD ac_ct_LD AR ac_ct_AR RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP WINDRES ac_ct_WINDRES LN_S LN EGREP LDCONFIG INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA LINT LINTFLAGS FONTFORGE PKG_CONFIG PRELINK LIBPTHREAD XLIB XFILES OPENGLFILES GLU32FILES OPENGL_LIBS GLUT_LIBS GLUT32FILES NASLIBS XML2LIBS XML2INCL XSLTLIBS XSLTINCL CURSESLIBS sane_devel SANELIBS SANEINCL ICULIBS LCMSLIBS LDAPLIBS FREETYPELIBS FREETYPEINCL ft_devel ft_devel2 FONTSSUBDIRS ARTSCCONFIG ARTSLIBS ARTSINCL ESDCONFIG ESDLIBS ESDINCL ALSALIBS AUDIOIOLIBS EXTRACFLAGS BUILTINFLAG DLLEXT DLLFLAGS DLLIBS LDSHARED LDDLLFLAGS LIBEXT IMPLIBEXT DLLTOOL ac_ct_DLLTOOL DLLWRAP ac_ct_DLLWRAP LDEXECFLAGS LDLIBWINEFLAGS COREFOUNDATIONLIB IOKITLIB CROSSTEST CROSSCC CROSSWINDRES LDPATH CRTLIBS SOCKETLIBS WINE_BINARIES MAIN_BINARY LDD LIBOBJS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS DLLDEFS build build_cpu build_vendor build_os host host_cpu host_vendor host_os WIN16_FILES WIN16_INSTALL SET_MAKE CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CXX CXXFLAGS ac_ct_CXX CPPBIN ac_ct_CPPBIN TOOLSDIR CPP X_CFLAGS X_PRE_LIBS X_LIBS X_EXTRA_LIBS LEX LEXLIB LEX_OUTPUT_ROOT XLEX BISON AS ac_ct_AS LD ac_ct_LD AR ac_ct_AR RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP WINDRES ac_ct_WINDRES LN_S LN EGREP LDCONFIG INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA LINT LINTFLAGS FONTFORGE PKG_CONFIG PRELINK LIBPTHREAD XLIB XFILES OPENGLFILES GLU32FILES OPENGL_LIBS GLUT_LIBS GLUT32FILES NASLIBS XML2LIBS XML2INCL XSLTLIBS XSLTINCL CURSESLIBS sane_devel SANELIBS SANEINCL ICULIBS LCMSLIBS LDAPLIBS FREETYPELIBS FREETYPEINCL ft_devel ft_devel2 FONTSSUBDIRS ARTSCCONFIG ARTSLIBS ARTSINCL ESDCONFIG ESDLIBS ESDINCL ALSALIBS AUDIOIOLIBS EXTRACFLAGS BUILTINFLAG DLLEXT DLLFLAGS DLLIBS LDSHARED LDDLLFLAGS LIBEXT IMPLIBEXT DLLTOOL ac_ct_DLLTOOL DLLWRAP ac_ct_DLLWRAP LDEXECFLAGS COREFOUNDATIONLIB IOKITLIB LDLIBWINEFLAGS CROSSTEST CROSSCC CROSSWINDRES LDPATH CRTLIBS SOCKETLIBS WINE_BINARIES MAIN_BINARY LDD LIBOBJS LTLIBOBJS'
 ac_subst_files='MAKE_RULES MAKE_DLL_RULES MAKE_IMPLIB_RULES MAKE_TEST_RULES MAKE_LIB_RULES MAKE_PROG_RULES'
 
 # Initialize some variables set by options.
@@ -12720,19 +12720,28 @@
           if test "$ac_cv_c_dll_macho" = "yes"
           then
             LIBEXT="dylib"
-            LDDLLFLAGS="-bundle -read_only_relocs warning"
+            LDDLLFLAGS="-bundle"
             LDSHARED="\$(CC) -dynamiclib"
-            CFLAGS="$CFLAGS -ffixed-r13 -no-cpp-precomp"
             STRIP="$STRIP -u -r"
-                        LDEXECFLAGS="-seg1addr 0x120000"
+                        COREFOUNDATIONLIB="-framework CoreFoundation"
 
-                        LDLIBWINEFLAGS="-seg1addr 0x140000"
+            IOKITLIB="-framework IOKit -framework CoreFoundation"
 
-	    	    COREFOUNDATIONLIB="-framework CoreFoundation"
+            case $host_cpu in
+              *i[3456789]86*)
+                LDEXECFLAGS="-image_base 0x7bf00000"
 
-            IOKITLIB="-framework IOKit"
+                ;;
+              *powerpc*)
+                CFLAGS="$CFLAGS -ffixed-r13"
+                LDDLLFLAGS="$LDDLLFLAGS -read_only_relocs warning"
+                                LDEXECFLAGS="-seg1addr 0x120000"
 
-	    	    IOKITLIB="$IOKITLIB $COREFOUNDATIONLIB"
+                LDLIBWINEFLAGS="-seg1addr 0x140000"
+
+                ;;
+            esac
+
           else
             echo "$as_me:$LINENO: checking whether we can build an HP-UX dll" >&5
 echo $ECHO_N "checking whether we can build an HP-UX dll... $ECHO_C" >&6
@@ -19585,9 +19594,9 @@
 s,@DLLWRAP@,$DLLWRAP,;t t
 s,@ac_ct_DLLWRAP@,$ac_ct_DLLWRAP,;t t
 s,@LDEXECFLAGS@,$LDEXECFLAGS,;t t
-s,@LDLIBWINEFLAGS@,$LDLIBWINEFLAGS,;t t
 s,@COREFOUNDATIONLIB@,$COREFOUNDATIONLIB,;t t
 s,@IOKITLIB@,$IOKITLIB,;t t
+s,@LDLIBWINEFLAGS@,$LDLIBWINEFLAGS,;t t
 s,@CROSSTEST@,$CROSSTEST,;t t
 s,@CROSSCC@,$CROSSCC,;t t
 s,@CROSSWINDRES@,$CROSSWINDRES,;t t