Test whether GTK+ is 2.18 or newer in configure.

We need to define __WXGTK218__ symbol in configure instead of simply checking
if we are compiled with 2.18 in wx/infobar.h because GTK_CHECK_VERSION() can't
be used when compiling user code which can't even include gtk/gtkversion.h
defining it because it doesn't necessarily use `pkg-config --cflags gtk+-2.0`
at all in its CFLAGS.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62405 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

configure

@@ -29532,6 +29532,77 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
             CFLAGS="$wx_cv_cflags_gtk $CFLAGS"
             LIBS="$LIBS $wx_cv_libs_gtk"
 
+                        { echo "$as_me:$LINENO: checking if GTK+ is version >= 2.18" >&5
+echo $ECHO_N "checking if GTK+ is version >= 2.18... $ECHO_C" >&6; }
+            cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+                            #include <gtk/gtk.h>
+
+int
+main ()
+{
+
+                            #if !GTK_CHECK_VERSION(2,18,0)
+                            Not GTK+ 2.18
+                            #endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 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 $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+
+                            cat >>confdefs.h <<\_ACEOF
+#define __WXGTK218__ 1
+_ACEOF
+
+                            cat >>confdefs.h <<\_ACEOF
+#define __WXGTK210__ 1
+_ACEOF
+
+                            cat >>confdefs.h <<\_ACEOF
+#define __WXGTK26__ 1
+_ACEOF
+
+                            { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+                            ac_wxgtk218=1
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+                            { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+                            ac_wxgtk218=0
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+            if test "$ac_wxgtk218" = 0; then
                                 { echo "$as_me:$LINENO: checking if GTK+ is version >= 2.10" >&5
 echo $ECHO_N "checking if GTK+ is version >= 2.10... $ECHO_C" >&6; }
                 cat >conftest.$ac_ext <<_ACEOF
@@ -29661,6 +29732,7 @@ fi
 
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
                 fi
+            fi
 
             CFLAGS="$save_CFLAGS"
             LIBS="$save_LIBS"

configure.in

@@ -2903,6 +2903,29 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
             CFLAGS="$wx_cv_cflags_gtk $CFLAGS"
             LIBS="$LIBS $wx_cv_libs_gtk"
 
+            dnl test if we have at least GTK+ 2.18:
+            AC_MSG_CHECKING([if GTK+ is version >= 2.18])
+            AC_TRY_COMPILE([
+                            #include <gtk/gtk.h>
+                           ],
+                           [
+                            #if !GTK_CHECK_VERSION(2,18,0)
+                            Not GTK+ 2.18
+                            #endif
+                           ],
+                           [
+                            AC_DEFINE(__WXGTK218__)
+                            AC_DEFINE(__WXGTK210__)
+                            AC_DEFINE(__WXGTK26__)
+                            AC_MSG_RESULT([yes])
+                            ac_wxgtk218=1
+                           ],
+                           [
+                            AC_MSG_RESULT([no])
+                            ac_wxgtk218=0
+                           ])
+
+            if test "$ac_wxgtk218" = 0; then
                 dnl test if we have at least GTK+ 2.10:
                 AC_MSG_CHECKING([if GTK+ is version >= 2.10])
                 AC_TRY_COMPILE([
@@ -2945,6 +2968,7 @@ libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config
                                     ac_wxgtk26=0
                                 ])
                 fi
+            fi
 
             CFLAGS="$save_CFLAGS"
             LIBS="$save_LIBS"

include/wx/infobar.h

@@ -52,12 +52,9 @@ private:
 };
 
 // currently only GTK+ has a native implementation
-#if defined(__WXGTK20__) && !defined(__WXUNIVERSAL__)
-    #include <gtk/gtkversion.h>
-    #if GTK_CHECK_VERSION(2, 18, 0)
+#if defined(__WXGTK218__) && !defined(__WXUNIVERSAL__)
     #include "wx/gtk/infobar.h"
     #define wxHAS_NATIVE_INFOBAR
-    #endif
 #endif // wxGTK2
 
 // if the generic version is the only one we have, use it

setup.h.in

@@ -68,6 +68,9 @@
 /* Define this if your version of GTK+ is greater than 2.10 */
 #undef __WXGTK210__
 
+/* Define this if your version of GTK+ is greater than 2.18 */
+#undef __WXGTK218__
+
 /* Define this if you want to use GPE features */
 #undef __WXGPE__
 

setup.h_vms

@@ -88,6 +88,9 @@
 /* Define this if your version of GTK+ is greater than 2.10 */
 #define __WXGTK210__ 1
 
+/* Define this if your version of GTK+ is greater than 2.18 */
+#undef __WXGTK218__
+
 #include <types.h>
 typedef pid_t GPid;