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config/arch/alpha.in.2
author "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
Fri Jan 27 13:31:16 2012 +0100 (2012-01-27)
changeset 2854 a70abdbfa342
parent 1716 6bbf206a5b57
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 # Alpha specific configuration file

     2 

     3 choice

     4     bool

     5     prompt "Variant"

     6 

     7 config ARCH_ALPHA_EV4

     8     bool

     9     prompt "EV4"

    10 

    11 config ARCH_ALPHA_EV45

    12     bool

    13     prompt "EV45"

    14 

    15 config ARCH_ALPHA_EV5

    16     bool

    17     prompt "EV5"

    18 

    19 config ARCH_ALPHA_EV56

    20     bool

    21     prompt "EV56"

    22 

    23 config ARCH_ALPHA_EV6

    24     bool

    25     prompt "EV6"

    26 

    27 config ARCH_ALPHA_EV67

    28     bool

    29     prompt "EV67"

    30 

    31 endchoice

    32 

    33 config ARCH_ALPHA_VARIANT

    34     string

    35     default "ev4"   if ARCH_ALPHA_EV4

    36     default "ev45"  if ARCH_ALPHA_EV45

    37     default "ev5"   if ARCH_ALPHA_EV5

    38     default "ev56"  if ARCH_ALPHA_EV56

    39     default "ev6"   if ARCH_ALPHA_EV6

    40     default "ev67"  if ARCH_ALPHA_EV67

    41 

    42 config ARCH_CPU

    43     default "ev4"   if ARCH_ALPHA_EV4

    44     default "ev45"  if ARCH_ALPHA_EV45

    45     default "ev5"   if ARCH_ALPHA_EV5

    46     default "ev56"  if ARCH_ALPHA_EV56

    47     default "ev6"   if ARCH_ALPHA_EV6

    48     default "ev67"  if ARCH_ALPHA_EV67

    49 

    50 config ARCH_TUNE

    51     default "ev4"   if ARCH_ALPHA_EV4

    52     default "ev45"  if ARCH_ALPHA_EV45

    53     default "ev5"   if ARCH_ALPHA_EV5

    54     default "ev56"  if ARCH_ALPHA_EV56

    55     default "ev6"   if ARCH_ALPHA_EV6

    56     default "ev67"  if ARCH_ALPHA_EV67
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