bug#59519: LibreOffice 7.3.5.2 fails to build on i686-linux

[Kaelyn]

Hi,

I was able to build libreoffice for i686-linux by adding "--enable-lto" and 
"--without-galleries" to the configure flags. The former seemed to resolve the 
linking issue, and the latter was to deal with the build failing because of 0 
themes being found.

That error was:
[build GAL] backgrounds
[build GAL] sounds
[build MOD] postprocess
Work on gallery 
'file:///tmp/guix-build-libreoffice-7.3.5.2.drv-0/libreoffice-7.3.5.2/workdir/Gallery/backgrounds'
Existing themes: 0
make[1]: *** 
[/tmp/guix-build-libreoffice-7.3.5.2.drv-0/libreoffice-7.3.5.2/solenv/gbuild/Gallery.mk:57:
 
/tmp/guix-build-libreoffice-7.3.5.2.drv-0/libreoffice-7.3.5.2/workdir/Gallery/backgrounds.done]
 Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: *** 
[/tmp/guix-build-libreoffice-7.3.5.2.drv-0/libreoffice-7.3.5.2/solenv/gbuild/Gallery.mk:57:
 
/tmp/guix-build-libreoffice-7.3.5.2.drv-0/libreoffice-7.3.5.2/workdir/Gallery/sounds.done]
 Error 1
make: *** [Makefile:289: build] Error 2
error: in phase 'build': uncaught exception:
%exception #<&invoke-error program: "make" arguments: ("-j" "24" 
"gtk_update_icon_cache=true") exit-status: 2 term-signal: #f stop-signal: #f> 
phase `build' failed after 954.9 seconds
command "make" "-j" "24" "gtk_update_icon_cache=true" failed with status 2

And a basic patch to add the two flags:
diff --git a/gnu/packages/libreoffice.scm b/gnu/packages/libreoffice.scm
index 8343f8ffc6..9ded4b5e5e 100644
--- a/gnu/packages/libreoffice.scm
+++ b/gnu/packages/libreoffice.scm
@@ -1235,6 +1235,8 @@ (define (install-appdata app)
          ;; when our default compiler is >=GCC 6.
          "--disable-pdfium"
          "--without-doxygen"
+         "--enable-lto"
+         ;; "--without-galleries"
          "--enable-build-opensymbol")))
     (native-inputs
      (list bison