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config/companion_libs/gmp.in
author "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
Fri Jan 27 13:31:16 2012 +0100 (2012-01-27)
changeset 2854 a70abdbfa342
parent 1984 95b4a458fd60
child 2957 3e2f2100a76d
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 # GMP options

     2 

     3 choice

     4     bool

     5     prompt "GMP version"

     6 # Don't remove next line

     7 # CT_INSERT_VERSION_BELOW

     8 

     9 config GMP_V_5_0_2

    10     bool

    11     prompt "5.0.2 (EXPERIMENTAL)"

    12     depends on EXPERIMENTAL

    13 

    14 config GMP_V_5_0_1

    15     bool

    16     prompt "5.0.1 (EXPERIMENTAL)"

    17     depends on EXPERIMENTAL

    18 

    19 config GMP_V_4_3_2

    20     bool

    21     prompt "4.3.2"

    22 

    23 config GMP_V_4_3_1

    24     bool

    25     prompt "4.3.1"

    26 

    27 config GMP_V_4_3_0

    28     bool

    29     prompt "4.3.0"

    30 

    31 config GMP_V_4_2_4

    32     bool

    33     prompt "4.2.4 (OBSOLETE)"

    34     depends on OBSOLETE

    35 

    36 config GMP_V_4_2_2

    37     bool

    38     prompt "4.2.2 (OBSOLETE)"

    39     depends on OBSOLETE

    40 

    41 endchoice

    42 

    43 config GMP_VERSION

    44     string

    45 # Don't remove next line

    46 # CT_INSERT_VERSION_STRING_BELOW

    47     default "5.0.2" if GMP_V_5_0_2

    48     default "5.0.1" if GMP_V_5_0_1

    49     default "4.3.2" if GMP_V_4_3_2

    50     default "4.3.1" if GMP_V_4_3_1

    51     default "4.3.0" if GMP_V_4_3_0

    52     default "4.2.4" if GMP_V_4_2_4

    53     default "4.2.2" if GMP_V_4_2_2
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