Fix wx-config --libs in monolithic build.

Don't include non-existent libraries (which are built as part of the main
monolithic one) in this case.

Closes #15567.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75712 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -581,6 +581,7 @@ All:
 
 - Fix wxSocket::WaitForAccept() in non-main thread (Hajo Kirchhoff).
 - Fix memory overallocation in wxVector::reserve() (Nigel Paton).
+- Fix `wx-config --libs` in monolithic build.
 - Fix the build under HP-UX (tested under 11.31).
 - Add Aragonese translation.
 

wx-config.in

@@ -1203,12 +1203,14 @@ if is_monolithic; then
 
     # Only add additional info if --libs was specified and not just --optional-libs
     if [ -n "$output_option_libs" ]; then
-        # Core libs are already built into the blob.
-        for i in std @STD_GUI_LIBS@ @STD_BASE_LIBS@; do
-            wx_libs=`remove_field $i $wx_libs`
-        done
+        # The only library we need to add when using monolithic build is the gl
+        # one as all the others are already included into the main one.
+        if match_field gl $wx_libs; then
+            wx_libs=gl
+        else
+            wx_libs=
+        fi
 
-        wx_libs=`order_libs $wx_libs`
         wx_libs="@WXCONFIG_LDFLAGS_GUI@ `lib_flags_for $wx_libs`"
 
         # We still need the core lib deps for a static build though