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patches/binutils/2.20.1a/300-mips64-defaultemul.patch
author "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
Fri Jan 27 13:31:16 2012 +0100 (2012-01-27)
changeset 2854 a70abdbfa342
parent 2088 4f21ba5f8e91
permissions -rw-r--r--
complibs/cloog: fix linking with libm

In Ubuntu 11.04 and 11.10, the default options for ld have changed.
--no-copy-dt-needed-entries and --as-needed are now enabled by default, which
causes errors like:

[EXTRA] Checking CLooG/ppl
[DEBUG] ==> Executing: 'make' '-j3' '-s' 'check'
[ALL ] Making check in .
[ALL ] config.status: creating include/cloog/cloog-config.h
[ALL ] config.status: include/cloog/cloog-config.h is unchanged
[ALL ] libtool: link: i686-build_pc-linux-gnu-gcc -Wall -fomit-frame-pointer
-pipe -o cloog cloog.o -L/<snip>/build/static/lib ./.libs/libcloog.a -lm
/<snip>/build/static/lib/libppl_c.a /<snip>/build/static/lib/libpwl.a
/<snip>/build/static/lib/libppl.a /<snip>/build/static/lib/libgmpxx.a
/<snip>/build/static/lib/libgmp.a -lstdc++
[ALL ] /usr/bin/ld: /<snip>/build/static/lib/libppl.a(MIP_Problem.o):
undefined reference to symbol 'sqrt@@GLIBC_2.0'
[ALL ] /usr/bin/ld: note: 'sqrt@@GLIBC_2.0' is defined in DSO
/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so so try adding
it to the linker command line
[ALL ] /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so:
could not read symbols: Invalid operation
[ALL ] collect2: ld returned 1 exit status
[ERROR] make[2]: *** [cloog] Error 1
[ERROR] make[1]: *** [check-recursive] Error 1

See:
https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition

This patch fixes these errors by placing '-lm' at the right place on the command
line as libppl requires libm when linking cloog.

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com> 
     1 

     2 

     3 diff -durN binutils-2.20.1.orig/ld/configure.tgt binutils-2.20.1/ld/configure.tgt

     4 --- binutils-2.20.1.orig/ld/configure.tgt	2009-08-06 19:38:03.000000000 +0200

     5 +++ binutils-2.20.1/ld/configure.tgt	2010-08-17 19:32:26.000000000 +0200

     6 @@ -400,11 +400,11 @@

     7  mips*-*-vxworks*)	targ_emul=elf32ebmipvxworks

     8  		        targ_extra_emuls="elf32elmipvxworks" ;;

     9  mips*-*-windiss)	targ_emul=elf32mipswindiss ;;

    10 -mips64*el-*-linux-*)	targ_emul=elf32ltsmipn32

    11 -			targ_extra_emuls="elf32btsmipn32 elf32ltsmip elf32btsmip elf64ltsmip elf64btsmip"

    12 +mips64*el-*-linux-*)	targ_emul=elf64ltsmip

    13 +			targ_extra_emuls="elf32ltsmipn32 elf32btsmipn32 elf32ltsmip elf32btsmip elf64btsmip"

    14  			targ_extra_libpath=$targ_extra_emuls ;;

    15 -mips64*-*-linux-*)	targ_emul=elf32btsmipn32

    16 -			targ_extra_emuls="elf32ltsmipn32 elf32btsmip elf32ltsmip elf64btsmip elf64ltsmip"

    17 +mips64*-*-linux-*)	targ_emul=elf64btsmip

    18 +			targ_extra_emuls="elf32btsmipn32 elf32ltsmipn32 elf32btsmip elf32ltsmip elf64ltsmip"

    19  			targ_extra_libpath=$targ_extra_emuls ;;

    20  mips*el-*-linux-*)	targ_emul=elf32ltsmip

    21  			targ_extra_emuls="elf32btsmip elf32ltsmipn32 elf64ltsmip elf32btsmipn32 elf64btsmip"
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