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config/libc/mingw.in.2
author "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
Fri Jan 27 13:31:16 2012 +0100 (2012-01-27)
changeset 2854 a70abdbfa342
parent 2018 860de6018501
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 # Part-2 of mingw C library options: development libraries

     2 

     3 config MINGW_DIRECTX

     4     bool

     5     prompt "Include DirectX development files"

     6 

     7 config MINGW_OPENGL

     8     bool

     9     prompt "Include OpenGL development files"

    10 

    11 config MINGW_PDCURSES

    12     bool

    13     prompt "Include PDCurses (NCurses library) development files"

    14 

    15 choice

    16     bool

    17     prompt "PDCurses library version"

    18     depends on MINGW_PDCURSES

    19 

    20 config MINGW_PDCURSES_V_3_4

    21     bool

    22     prompt "3.4"

    23 

    24 # CT_INSERT_VERSION_ABOVE

    25 # Don't remove above line!

    26 

    27 config MINGW_PDCURSES_V_select

    28     bool

    29     prompt "Other version"

    30 

    31 endchoice

    32 

    33 config MINGW_PDCURSES_VERSION

    34     string

    35     prompt "PDCurses library version" if MINGW_PDCURSES_V_select

    36     default "3.4" if MINGW_PDCURSES_V_3_4

    37 # CT_INSERT_VERSION_STRING_ABOVE

    38 # Don't remove above line!

    39     help

    40       Enter the version number of the PDCurses library to use

    41 

    42 config MINGW_GNURX

    43     bool

    44     prompt "Include GnuRX (regex library) development files"

    45 

    46 choice

    47     bool

    48     prompt "GnuRX library version"

    49     depends on MINGW_GNURX

    50 

    51 config MINGW_GNURX_V_2_5_1

    52     bool

    53     prompt "2.5.1"

    54 

    55 # CT_INSERT_VERSION_ABOVE

    56 # Don't remove above line!

    57 

    58 config MINGW_GNURX_V_select

    59     bool

    60     prompt "Other version"

    61 

    62 endchoice

    63 

    64 config MINGW_GNURX_VERSION

    65     string

    66     prompt "GnuRX library version" if MINGW_GNURX_V_select

    67     default "2.5.1" if MINGW_GNURX_V_2_5_1

    68 # CT_INSERT_VERSION_STRING_ABOVE

    69 # Don't remove above line!

    70     help

    71       Enter the version number of the Regex library to use

    72
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