Sorry, I forgot to add the patch iteration to the subject line. It is v3
and it has the ID 3153 in Patchwork [1].

Am Sonntag, den 03.10.2010, 17:54 +0200 schrieb Paul Menzel:
> Date: Sat, 2 Oct 2010 12:51:03 +0200
> 
> Randomly the build failed for me with the following error message.
> 
>     libpython2.6.so: undefined reference to `_PyParser_Grammar'
> 
> The applied patch in [5] tried to fix this problem, but it turns out that 
> this also was due to a possible race. This is already known in OpenOffice too 
> [3].
> 
> R. David Murray (dmalcolm) <[email protected]> fixed this in Fedora 
> [1] and I applied his patch.
> 
> I reported this issue upstream [4] and this will only be fixed in Python 2.7, 
> so we have to keep this patch for Python 2.6.
> 
> I put 00 in front of the name of the patch file because I did not want to 
> rename the other patches.
> 
> I build tested this with `MACHINE = " beagleboard"` for `angstrom-2008.1` and 
> `minimal-{eglibc,uclibc,libc}`.
> 
> [1] 
> http://pkgs.fedoraproject.org/gitweb/?p=python.git;a=commitdiff;h=b95f6cc2ca6a009f97436c6aa16cfd70547353d9
> [2] http://www.openoffice.org/issues/show_bug.cgi?id=114866
> [3] http://doc.services.openoffice.org/wiki/RedTinderboxStatusInEIS
> [4] http://bugs.python.org/issue10013
> [5] http://patchwork.openembedded.org/patch/1899/
> 
> Signed-off-by: Paul Menzel <[email protected]>
> ---
> v1 → v2: comments by Khem and Tom, add accidentely removed »\« at the line 
> ending.
> v2 → v3: Reorder patches, so that they can be applied to python and 
> python-native.
> ---
>  .../python/python-2.6.5/00-fix-parallel-make.patch |   40 
> ++++++++++++++++++++
>  .../01-use-proper-tools-for-cross-build.patch      |   14 +++---
>  recipes/python/python-native_2.6.5.bb              |    3 +-
>  recipes/python/python_2.6.5.bb                     |    3 +-
>  4 files changed, 51 insertions(+), 9 deletions(-)
>  create mode 100644 recipes/python/python-2.6.5/00-fix-parallel-make.patch
> 
> diff --git a/recipes/python/python-2.6.5/00-fix-parallel-make.patch 
> b/recipes/python/python-2.6.5/00-fix-parallel-make.patch
> new file mode 100644
> index 0000000..c80ca19
> --- /dev/null
> +++ b/recipes/python/python-2.6.5/00-fix-parallel-make.patch
> @@ -0,0 +1,40 @@
> +upstream: <http://bugs.python.org/issue10013>
> +comment: As in the comment in the issue tracker this is fixed for py3k a 
> little differently <http://svn.python.org/view?view=rev&revision=84068>. This 
> patch is taken from Fedora.
> +
> +diff -up Python-2.7/Makefile.pre.in.fix-parallel-make 
> Python-2.7/Makefile.pre.in
> +--- Python-2.7/Makefile.pre.in.fix-parallel-make     2010-07-22 
> 15:01:39.567996932 -0400
> ++++ Python-2.7/Makefile.pre.in       2010-07-22 15:47:02.437998509 -0400
> +@@ -197,6 +197,7 @@ SIGNAL_OBJS=     @SIGNAL_OBJS@
> + 
> + ##########################################################################
> + # Grammar
> ++GRAMMAR_STAMP=      $(srcdir)/grammar-stamp
> + GRAMMAR_H=  $(srcdir)/Include/graminit.h
> + GRAMMAR_C=  $(srcdir)/Python/graminit.c
> + GRAMMAR_INPUT=      $(srcdir)/Grammar/Grammar
> +@@ -514,10 +515,24 @@ Modules/getpath.o: $(srcdir)/Modules/get
> + Modules/python.o: $(srcdir)/Modules/python.c
> +     $(MAINCC) -c $(PY_CFLAGS) -o $@ $(srcdir)/Modules/python.c
> + 
> ++# GNU "make" interprets rules with two dependents as two copies of the rule.
> ++# 
> ++# In a parallel build this can lead to pgen being run twice, once for each 
> of
> ++# GRAMMAR_H and GRAMMAR_C, leading to race conditions in which the compiler
> ++# reads a partially-overwritten copy of one of these files, leading to 
> syntax
> ++# errors (or linker errors if the fragment happens to be syntactically 
> valid C)
> ++#
> ++# See 
> http://www.gnu.org/software/hello/manual/automake/Multiple-Outputs.html
> ++# for more information.
> ++#
> ++# Introduce ".grammar-stamp" as a contrived single output from PGEN to avoid
> ++# this:
> ++$(GRAMMAR_H) $(GRAMMAR_C): $(GRAMMAR_STAMP)
> + 
> +-$(GRAMMAR_H) $(GRAMMAR_C): $(PGEN) $(GRAMMAR_INPUT)
> ++$(GRAMMAR_STAMP): $(PGEN) $(GRAMMAR_INPUT)
> +             -...@$(INSTALL) -d Include
> +             -$(PGEN) $(GRAMMAR_INPUT) $(GRAMMAR_H) $(GRAMMAR_C)
> ++            touch $(GRAMMAR_STAMP)
> + 
> + $(PGEN):    $(PGENOBJS)
> +             $(CC) $(OPT) $(LDFLAGS) $(PGENOBJS) $(LIBS) -o $(PGEN)
> diff --git 
> a/recipes/python/python-2.6.5/01-use-proper-tools-for-cross-build.patch 
> b/recipes/python/python-2.6.5/01-use-proper-tools-for-cross-build.patch
> index e89faa4..4b485ec 100644
> --- a/recipes/python/python-2.6.5/01-use-proper-tools-for-cross-build.patch
> +++ b/recipes/python/python-2.6.5/01-use-proper-tools-for-cross-build.patch
> @@ -14,7 +14,7 @@ Index: Python-2.6.1/Makefile.pre.in
>   
>   # The task to run while instrument when building the profile-opt target
>   PROFILE_TASK=       $(srcdir)/Tools/pybench/pybench.py -n 2 --with-gc 
> --with-syscheck
> -@@ -205,7 +206,7 @@ GRAMMAR_INPUT=   $(srcdir)/Grammar/Grammar
> +@@ -206,7 +207,7 @@ GRAMMAR_INPUT=   $(srcdir)/Grammar/Grammar
>   ##########################################################################
>   # Parser
>   PGEN=               Parser/pgen$(EXE)
> @@ -23,7 +23,7 @@ Index: Python-2.6.1/Makefile.pre.in
>   POBJS=              \
>               Parser/acceler.o \
>               Parser/grammar1.o \
> -@@ -394,8 +395,8 @@ platform: $(BUILDPYTHON)
> +@@ -395,8 +396,8 @@ platform: $(BUILDPYTHON)
>   # Build the shared modules
>   sharedmods: $(BUILDPYTHON)
>       @case $$MAKEFLAGS in \
> @@ -34,16 +34,16 @@ Index: Python-2.6.1/Makefile.pre.in
>       esac
>   
>   # Build static library
> -@@ -513,7 +514,7 @@ Modules/python.o: $(srcdir)/Modules/pyth
> +@@ -531,7 +532,7 @@ $(GRAMMAR_H) $(GRAMMAR_C): $(GRAMMAR_STAMP)
>   
> - $(GRAMMAR_H) $(GRAMMAR_C): $(PGEN) $(GRAMMAR_INPUT)
> + $(GRAMMAR_STAMP): $(PGEN) $(GRAMMAR_INPUT)
>               -...@$(INSTALL) -d Include
>  -            -$(PGEN) $(GRAMMAR_INPUT) $(GRAMMAR_H) $(GRAMMAR_C)
>  +            -$(HOSTPGEN) $(GRAMMAR_INPUT) $(GRAMMAR_H) $(GRAMMAR_C)
> +             touch $(GRAMMAR_STAMP)
>   
>   $(PGEN):    $(PGENOBJS)
> -             $(CC) $(OPT) $(LDFLAGS) $(PGENOBJS) $(LIBS) -o $(PGEN)
> -@@ -879,23 +880,23 @@ libinstall:    build_all $(srcdir)/Lib/$(PL
> +@@ -902,23 +903,23 @@ libinstall:    build_all $(srcdir)/Lib/$(PL
>       done
>       $(INSTALL_DATA) $(srcdir)/LICENSE $(DESTDIR)$(LIBDEST)/LICENSE.txt
>       PYTHONPATH=$(DESTDIR)$(LIBDEST)  $(RUNSHARED) \
> @@ -72,7 +72,7 @@ Index: Python-2.6.1/Makefile.pre.in
>   
>   # Create the PLATDIR source directory, if one wasn't distributed..
>   $(srcdir)/Lib/$(PLATDIR):
> -@@ -993,7 +994,7 @@ libainstall:     all
> +@@ -1016,7 +1017,7 @@ libainstall:   all
>   # Install the dynamically loadable modules
>   # This goes into $(exec_prefix)
>   sharedinstall:
> diff --git a/recipes/python/python-native_2.6.5.bb 
> b/recipes/python/python-native_2.6.5.bb
> index 76fbbb6..51a1fb1 100644
> --- a/recipes/python/python-native_2.6.5.bb
> +++ b/recipes/python/python-native_2.6.5.bb
> @@ -1,9 +1,10 @@
>  require python.inc
>  DEPENDS = "openssl-native bzip2-full-native zlib-native readline-native 
> sqlite3-native"
> -PR = "${INC_PR}.0"
> +PR = "${INC_PR}.1"
>  
>  FILESPATHPKG .= ":python-${PV}:python"
>  SRC_URI = "http://www.python.org/ftp/python/${PV}/Python-${PV}.tar.bz2 \
> +           file://00-fix-parallel-make.patch \
>             file://00-fix-bindir-libdir-for-cross.patch \
>             file://04-default-is-optimized.patch \
>             file://05-enable-ctypes-cross-build.patch \
> diff --git a/recipes/python/python_2.6.5.bb b/recipes/python/python_2.6.5.bb
> index ecd9f78..c8393c1 100644
> --- a/recipes/python/python_2.6.5.bb
> +++ b/recipes/python/python_2.6.5.bb
> @@ -3,10 +3,11 @@ DEPENDS = "python-native db gdbm openssl readline sqlite3 
> tcl zlib\
>             $...@base_contains('DISTRO_FEATURES', 'tk', 'tk', '', d)}"
>  DEPENDS_sharprom = "python-native db readline zlib gdbm openssl"
>  # set to .0 on every increase of INC_PR
> -PR = "${INC_PR}.0"
> +PR = "${INC_PR}.1"
>  
>  SRC_URI = "\
>    http://www.python.org/ftp/python/${PV}/Python-${PV}.tar.bz2 \
> +  file://00-fix-parallel-make.patch \
>    file://00-fix-bindir-libdir-for-cross.patch \
>    file://01-use-proper-tools-for-cross-build.patch \
>    file://02-remove-test-for-cross.patch \


Thanks,

Paul


[1] http://patchwork.openembedded.org/patch/3153/

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