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Author SHA1 Message Date
Benoît Thébaudeau" f173e77e32 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>
 12 years ago