Moved .pc files and added pkgconf test

Author: priyanshu shrivastava

brew.yaml

@@ -54,6 +54,14 @@ pipeline:
       set -x
       mkdir -p ${{targets.destdir}}/home/linuxbrew/.linuxbrew/
       cp -a ./brew/bin/ ./brew/Library/ ./brew/package/ ${{targets.destdir}}/home/linuxbrew/.linuxbrew/
+
+      # Relocate .pc files to /usr/lib/pkgconfig and create symlinks
+      mkdir -p ${{targets.destdir}}/usr/lib/pkgconfig/
+      find ${{targets.destdir}}/home/linuxbrew -name "*.pc" | while read pc_file; do
+        mkdir -p "$(dirname "$pc_file")" && mv "$pc_file" "${{targets.destdir}}/usr/lib/pkgconfig/$(basename "$pc_file")" && ln -s "../../../../../usr/lib/pkgconfig/$(basename "$pc_file")" "$pc_file"
+      done
+
+      # Create profile.d script
       mkdir -p ${{targets.destdir}}/etc/profile.d/
       echo "export PATH=\$PATH:/home/linuxbrew/.linuxbrew/bin" > ${{targets.destdir}}/etc/profile.d/brew.sh
       echo "export HOMEBREW_NO_AUTO_UPDATE=1" >> ${{targets.destdir}}/etc/profile.d/brew.sh
@@ -82,3 +90,4 @@ test:
     - runs: |
         . /etc/profile.d/brew.sh
         HOME=/root brew --version
+    - uses: test/pkgconf