[patch #10393] Fix shared library support on Android

[Bruno Haible]

URL:
  <https://savannah.gnu.org/patch/?10393>

                 Summary: Fix shared library support on Android
                   Group: GNU Libtool
               Submitter: haible
               Submitted: Mon 18 Sep 2023 01:25:06 PM CEST
                Category: None
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any


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Follow-up Comments:


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Date: Mon 18 Sep 2023 01:25:06 PM CEST By: Bruno Haible <haible>
On Android, within the termux environment, I encountered two problems during
the "make install" phase of GNU gettext. The attached patch fixes them.

1) On this platform, libtool is configured to relink libraries during "make
install". This leads to a problem during the installation of libgettextsrc:
The relink command that libtool emits has the form
    
  $CC -shared -fPIC -DPIC .libs/*.o -L$(libdir) ... -lgettextlib ... -o
.libs/libgettextsrc-@VERSION@.soT
    
The option -lgettextlib resolves to $(libdir)/libgettextlib.a, not to
$(libdir)/libgettextlib-@VERSION@.so. Thus the linker attempts to include many
object files from libgettextlib.a into libgettextsrc-@VERSION@.soT, but some
of these reference global variables in a non-PIC way, and the linker thus
complains

  ld.lld: error: relocation R_ARM_REL32 cannot be used against symbol
'program_name'; recompile with -fPIC

2) The installed executables don't have a RUNPATH property that points to the
directory that contains the shared libraries. Thus these executables don't
run.







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File Attachments:


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Date: Mon 18 Sep 2023 01:25:06 PM CEST  Name:
0001-Fix-shared-library-support-on-Android.patch  Size: 2KiB   By: haible

<http://savannah.gnu.org/patch/download.php?file_id=55144>

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