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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/65351] [5 Regression] libiberty's pic version contains non-pic code on m32 darwin; causes bootstrap fail building libcc1.
Date: Tue, 07 Apr 2015 21:30:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65351

--- Comment #16 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Jack Howarth from comment #15)
> (In reply to Jakub Jelinek from comment #14)
> > So hopefully fixed now.
> 
> This breaks the bootstrap on darwin14 here...
> 
> make[3]: Entering directory
> '/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/libiberty'
> if [ x"-fno-common -mno-dynamic-no-pic" != x ]; then \
>   gcc -c -DHAVE_CONFIG_H -g   -I.
> -I../../gcc-5-20150407/libiberty/../include  -W -Wall -Wwrite-strings
> -Wc++-compat -Wstrict-prototypes -pedantic  -fno-common -mno-dynamic-no-pic
> ../../gcc-5-20150407/libiberty/regex.c -o pic/regex.o; \
> else true; fi
> clang: error: unknown argument: '-mno-dynamic-no-pic'
> Makefile:1167: recipe for target 'regex.o' failed
> make[3]: *** [regex.o] Error 1
> make[3]: Leaving directory
> '/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir/libiberty'
> Makefile:9585: recipe for target 'all-stage1-libiberty' failed
> make[2]: *** [all-stage1-libiberty] Error 2
> make[2]: Leaving directory '/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir'
> Makefile:20760: recipe for target 'stage1-bubble' failed
> make[1]: *** [stage1-bubble] Error 2
> make[1]: Leaving directory '/sw/src/fink.build/gcc5-5.0.0-1/darwin_objdir'
> Makefile:21064: recipe for target 'bootstrap' failed
> make: *** [bootstrap] Error 2
> 
> The default system compiler (Apple Clang 6.0) doesn't understand
> -mno-dynamic-no-pic.

hmm OK. that's going to make life difficult.