wx-config changes merged from the 2.2 branch

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9459 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wx-config.in

@@ -7,12 +7,36 @@ CC="@CC@"
 CXX="@CXX@"
 LD="@SHARED_LD@"
 
-usage="\
-Usage: wx-config [--prefix[=DIR]] [--exec-prefix[=DIR]] [--version] [--libs] [--cflags] [--cc] [--cxx] [--ld]"
+usage()
+{
+    cat <<EOF
+Usage: wx-config [--prefix[=DIR]] [--exec-prefix[=DIR]] [--version]
+                 [--libs] [--cppflags] [--cflags] [--cxxflags]
+                 [--cc] [--cxx] [--ld]
+
+wx-config returns configuration information about the installed
+version of wxWindows. It may be used to query its version and
+installation directories and also retrieve the C and C++ compilers
+and linker which were used for its building and the corresponding
+flags.
+EOF
+
+    exit $1
+}
+
+cppflags()
+{
+    if test @includedir@ != /usr/include ; then
+        if test @includedir@ != /usr/include/c++ ; then
+            includes=-I@includedir@
+        fi
+    fi
+    includes="$includes -I@libdir@/wx/include -D__USE_WXCONFIG__"
+    echo $includes @WXDEBUG_DEFINE@ @TOOLKIT_DEF@ @WXCONFIG_INCLUDE@
+}
 
 if test $# -eq 0; then
-      echo "${usage}" 1>&2
-      exit 1
+      usage 1 1>&2
 fi
 
 while test $# -gt 0; do
@@ -41,14 +65,14 @@ while test $# -gt 0; do
     --version)
       echo @WX_MAJOR_VERSION_NUMBER@.@WX_MINOR_VERSION_NUMBER@.@WX_RELEASE_NUMBER@
       ;;
+    --cppflags)
+      cppflags
+      ;;
     --cflags)
-      if test @includedir@ != /usr/include ; then
-        if test @includedir@ != /usr/include/c++ ; then
-          includes=-I@includedir@
-        fi
-      fi
-      includes="$includes -I@libdir@/wx/include"
-      echo $includes -D__USE_WXCONFIG__ @CODE_GEN_FLAGS@ @CODE_GEN_FLAGS_CXX@ @WXDEBUG_DEFINE@ @TOOLKIT_DEF@ @WXCONFIG_INCLUDE@
+      echo `cppflags` @CODE_GEN_FLAGS@
+      ;;
+    --cxxflags)
+      echo `cppflags` @CODE_GEN_FLAGS@ @CODE_GEN_FLAGS_CXX@
       ;;
     --libs)
       if test @libdir@ != /usr/lib ; then
@@ -66,8 +90,7 @@ while test $# -gt 0; do
       echo $LD
       ;;
     *)
-      echo "${usage}" 1>&2
-      exit 1
+      usage 1 1>&2
       ;;
   esac
   shift