Re: [PATCH] Install libm.a as linker script [BZ #20539]

[Andrew Senkevich <andrew dot n dot senkevich at gmail dot com>]

2016-12-09 21:23 GMT+03:00 Andreas Schwab <schwab@suse.de>:
> On Dez 09 2016, Andrew Senkevich <andrew.n.senkevich@gmail.com> wrote:
>
>> 2016-12-09 18:38 GMT+03:00 Andreas Schwab <schwab@suse.de>:
>>> On Dez 07 2016, Andrew Senkevich <andrew.n.senkevich@gmail.com> wrote:
>>>
>>>> +$(inst_libdir)/libm.a: $(common-objpfx)format.lds \
>>>> +                    $(libm) \
>>>> +                    $(libmvec) \
>>>> +                    $(+force)
>>>> +     (echo '/* GNU ld script'; echo '*/';\
>>>> +      cat $<; \
>>>> +      echo 'GROUP ( $(libdir)/libm-$(lib-version).a $(libdir)/libmvec.a )' \
>>>> +     ) > $@.new
>>>> +     cp $(objpfx)libm.a $(inst_libdir)/libm-$(lib-version).a
>>>
>>> A rule should only create the target, nothing else.
>>
>> Is the following update Ok?
>
> There is no neeed to go through a stamp file, just depend on
> $(inst_libdir)/libm-$(lib-version).a, and add a rule which copies
> $(objpfx)libm.a there.

I see. Is it ok:

diff --git a/ChangeLog b/ChangeLog
index 4d31f4f..a5336d3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2016-12-12  Andrew Senkevich  <andrew.senkevich@intel.com>
+
+ * math/Makefile ($(inst_libdir)/libm-$(lib-version).a): New target.
+ ($(inst_libdir)/libm.a): Correct rule to create the target only.
+
 2016-12-10  Florian Weimer  <fweimer@redhat.com>

  [BZ #20956]
diff --git a/math/Makefile b/math/Makefile
index 49556f6..38ce4ab 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -143,15 +143,17 @@ $(inst_libdir)/libm.so: $(common-objpfx)format.lds \
  ) > $@.new
  mv -f $@.new $@

+$(inst_libdir)/libm-$(lib-version).a: $(objpfx)libm.a
+ cp $(objpfx)libm.a $(inst_libdir)/libm-$(lib-version).a
+
 $(inst_libdir)/libm.a: $(common-objpfx)format.lds \
-       $(libm) \
-       $(libmvec) \
+       $(inst_libdir)/libm-$(lib-version).a \
+       $(objpfx)../mathvec/libmvec.a \
        $(+force)
  (echo '/* GNU ld script'; echo '*/';\
  cat $<; \
  echo 'GROUP ( $(libdir)/libm-$(lib-version).a $(libdir)/libmvec.a )' \
  ) > $@.new
- cp $(objpfx)libm.a $(inst_libdir)/libm-$(lib-version).a
  mv -f $@.new $@
 endif



--
WBR,
Andrew

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