Add pkgconfig provides for installed pkgconfig files

For example:
  * Provides: mingw32-pkgconfig(qt5svg)
  * Provides: mingw64-pkgconfig(qt5svg)

mingw-filesystem.spec

@@ -9,8 +9,8 @@
 %global macrosdir %(d=%{_rpmconfigdir}/macros.d; [ -d $d ] || d=%{_sysconfdir}/rpm; echo $d)
 
 Name:           mingw-filesystem
-Version:        147
-Release:        3%{?dist}
+Version:        148
+Release:        1%{?dist}
 Summary:        MinGW cross compiler base filesystem and environment
 
 License:        GPL-2.0-or-later
@@ -378,6 +378,9 @@ echo ".so man1/pkgconf.1" > %{buildroot}%{_mandir}/man1/x86_64-w64-mingw32ucrt-p
 %dir %{_prefix}/lib/debug/%{_prefix}/x86_64-w64-mingw32ucrt
 
 %changelog
+* Wed Sep 13 2023 Orion Poplawski <orion@nwra.com> - 148-1
+- Add pkgconfig provides
+
 * Mon Sep 11 2023 Neal Gompa <ngompa@fedoraproject.org> - 147-3
 - Add dependency on cmake-rpm-macros
 

mingw.prov

@@ -21,4 +21,14 @@ for f in $dlls; do
     done
 done
 
+pcs=$(echo $filelist | tr '[:blank:]' '\n' | grep '\.pc$')
+
+for f in $pcs; do
+    basename=`basename $f .pc | tr '[:upper:]' '[:lower:]'`
+    for target in $targets; do
+        host_triplet=`rpm --eval "%{${target}_target}"`
+        [[ $f =~ .*$host_triplet.* ]] && echo "${target}-pkgconfig($basename)"
+    done
+done
+
 exit 0