chore: Update build configurations to enable install strip and strip debug symbols

configs/common/mozconfig

@@ -33,13 +33,6 @@ if test "$ZEN_RELEASE"; then
   ac_add_options --disable-tests
   ac_add_options --disable-jprof
 
-  if ! test "$ZEN_CROSS_COMPILING"; then
-    # TODO: Should actually be "not on windows"
-    ac_add_options --enable-install-strip
-    ac_add_options --enable-strip
-    export STRIP_FLAGS="--strip-debug --strip-unneeded"
-  fi
-
   ac_add_options --enable-rust-simd
   mk_add_options MOZ_PARALLEL_COMPILE=1
 

configs/linux/mozconfig

@@ -8,13 +8,15 @@ else
 fi
 
 if test "$ZEN_RELEASE"; then
-    export MOZ_PGO=1
-    ac_add_options MOZ_PGO=1
 
     ac_add_options --disable-dmd
     ac_add_options --enable-linker=lld
     ac_add_options --disable-elf-hack
 
+    ac_add_options --enable-install-strip
+    ac_add_options --enable-strip
+    export STRIP_FLAGS="--strip-debug --strip-unneeded"
+
     if [ -f /home/runner/.mozbuild/sccache/sccache ]; then
         mk_add_options 'export RUSTC_WRAPPER=/home/runner/.mozbuild/sccache/sccache'
         mk_add_options 'export CCACHE_CPP2=yes'
@@ -26,6 +28,11 @@ fi
 if test "$SURFER_COMPAT" = "true"; then
     # Build for linux-i686
     ac_add_options --target=i686-pc-linux
+else
+    # Note: we dont do PGO for i686 because we need to figure out about:
+    # "libgtk-3.so.0: cannot open shared object file: No such file or directory"
+    export MOZ_PGO=1
+    ac_add_options MOZ_PGO=1
 fi
 
 # Build for linux-x86_64    

configs/macos/mozconfig

@@ -12,4 +12,8 @@ if test "$SURFER_COMPAT" = "true"; then
     ac_add_options --target=x86_64-apple-darwin
 else
     ac_add_options --target=aarch64-apple-darwin
+
+    ac_add_options --enable-install-strip
+    ac_add_options --enable-strip
+    export STRIP_FLAGS="--strip-debug --strip-unneeded"
 fi