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patches/glibc/2.6.1/180-gcc-4.3-sysinclude-path.patch
author "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
Fri Jan 27 13:31:16 2012 +0100 (2012-01-27)
changeset 2854 a70abdbfa342
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 Patch pointed to by Ryan ARNOLD on the libc-help ML.

     2 See: http://sourceware.org/ml/libc-help/2008-06/msg00063.html

     3 

     4 Forwarded to crosstool-NG by Ioannis E. VENETIS:

     5 See: http://sourceware.org/ml/libc-help/2008-06/msg00063.html

     6 

     7 GCC 4.3 changed the location of some of the header files.  I don't

     8 understand why you'd be getting these errors while building GCC since

     9 it provides them.

    10 

    11 With regard to GLIBC, Roland checked in some changes so that the GLIBC

    12 build system could find the new locations of the GCC provided header

    13 files.

    14 

    15 diff -durN glibc-2.6.1.orig/configure.in glibc-2.6.1/configure.in

    16 --- glibc-2.6.1.orig/configure.in	2007-06-08 05:16:36.000000000 +0200

    17 +++ glibc-2.6.1/configure.in	2008-06-24 18:38:46.000000000 +0200

    18 @@ -911,8 +911,12 @@

    19  # header directory and add that to the list.  NOTE: Only does the right

    20  # thing on a system that doesn't need fixincludes.  (Not presently a problem.)

    21  if test -n "$sysheaders"; then

    22 -  ccheaders=`$CC -print-file-name=include`

    23 -  SYSINCLUDES="-nostdinc -isystem $ccheaders \

    24 +  SYSINCLUDES=-nostdinc

    25 +  for d in include include-fixed; do

    26 +    i=`$CC -print-file-name="$d"` && test "x$i" != x && test "x$i" != "x$d" &&

    27 +    SYSINCLUDES="$SYSINCLUDES -isystem $i"

    28 +  done

    29 +  SYSINCLUDES="$SYSINCLUDES \

    30  -isystem `echo $sysheaders | sed 's/:/ -isystem /g'`"

    31    if test -n "$CXX"; then

    32      cxxversion=`$CXX -dumpversion 2>&AS_MESSAGE_LOG_FD` &&

    33 diff -durN glibc-2.6.1.orig/configure glibc-2.6.1/configure

    34 --- glibc-2.6.1.orig/configure	2008-06-24 18:35:34.000000000 +0200

    35 +++ glibc-2.6.1/configure	2008-06-24 18:38:46.000000000 +0200

    36 @@ -4562,8 +4562,12 @@

    37  # header directory and add that to the list.  NOTE: Only does the right

    38  # thing on a system that doesn't need fixincludes.  (Not presently a problem.)

    39  if test -n "$sysheaders"; then

    40 -  ccheaders=`$CC -print-file-name=include`

    41 -  SYSINCLUDES="-nostdinc -isystem $ccheaders \

    42 +  SYSINCLUDES=-nostdinc

    43 +  for d in include include-fixed; do

    44 +    i=`$CC -print-file-name="$d"` && test "x$i" != "x$d" &&

    45 +    SYSINCLUDES="$SYSINCLUDES -isystem $i"

    46 +  done

    47 +  SYSINCLUDES="$SYSINCLUDES \

    48  -isystem `echo $sysheaders | sed 's/:/ -isystem /g'`"

    49    if test -n "$CXX"; then

    50      cxxversion=`$CXX -dumpversion 2>&5` &&
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