Hey Jean-Pierre,
On Thursday, January 14, 2016 at 1:17:48 AM UTC-8, Jean-Pierre Flori wrote:
>
>
>
> On Thursday, January 14, 2016 at 10:04:52 AM UTC+1, Jean-Pierre Flori
> wrote:
>>
>> I see
>>
>> #if (defined(Win32) || defined(Win64))/* R instance as a global */Rstart
>> Rp;#endif
>> in src/rinterface/_rinterface.c.
>> That sounds fishy for Cygwin.
>>
>>
>> It looks like: http://trac.sagemath.org/ticket/16089
>> And that the cygwin patch was ill porte here:
>> http://trac.sagemath.org/ticket/19638
>>
>> Note sure why:
>> * the linking to readline was removed, maybe R does it properly now
>> without handholding.
>> * this change in the patch is either not enough or too much:
>> -#if defined(Win32) || defined(Win64)
>> +#if defined(Win32) || defined(Win64) || defined(__CYGWIN__)
>> Rp->R_Interactive = rtruefalse;
>> #else
>> R_Interactive = rtruefalse;
>>
>> Try to remove it first.
>> If that's not sufficient the numerous try instead to perform the same
>> change for all #if around R_Interactive stuff.
>>
> Looking at the code of the previous version we shipped, I'd say the
> "remove the change" solution should be the right one.
>
That did now work for me. Here was the change I made:
Travis@apricot ~/sage/build/pkgs/rpy2/patches
$ git diff
diff --git a/build/pkgs/rpy2/patches/cygwin.patch b/build/pkgs/rpy2/patches/
cygwin.patch
index 90641d4..959c70e 100644
--- a/build/pkgs/rpy2/patches/cygwin.patch
+++ b/build/pkgs/rpy2/patches/cygwin.patch
@@ -58,15 +58,6 @@ diff -ru rpy2-2.7.4.orig/rpy/rinterface/_rinterface.c
rpy2-2.7.4/rpy/rinterface/
void win32CallBack()
{
/* called during i/o, eval, graphics in ProcessEvents */
-@@ -1489,7 +1489,7 @@
- } else {
- rtruefalse = FALSE;
- }
--#if defined(Win32) || defined(Win64)
-+#if defined(Win32) || defined(Win64) || defined(__CYGWIN__)
- Rp->R_Interactive = rtruefalse;
- #else
- R_Interactive = rtruefalse;
@@ -3749,7 +3749,7 @@
}
The log file is attached.
Best,
Travis
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Found local metadata for rpy2-2.7.5
Using cached file /home/Travis/sage/upstream/rpy2-2.7.5.tar.gz
rpy2-2.7.5
====================================================
Setting up build directory for rpy2-2.7.5
Finished set up
****************************************************
Host system:
CYGWIN_NT-6.3-WOW apricot 2.3.1(0.291/5/3) 2015-11-14 12:42 i686 Cygwin
****************************************************
C compiler: gcc
C compiler version:
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-pc-cygwin/4.9.3/lto-wrapper.exe
Target: i686-pc-cygwin
Configured with:
/cygdrive/i/szsz/tmpp/gcc/gcc-4.9.3-1.i686/src/gcc-4.9.3/configure
--srcdir=/cygdrive/i/szsz/tmpp/gcc/gcc-4.9.3-1.i686/src/gcc-4.9.3 --prefix=/usr
--exec-prefix=/usr --localstatedir=/var --sysconfdir=/etc
--docdir=/usr/share/doc/gcc --htmldir=/usr/share/doc/gcc/html -C
--build=i686-pc-cygwin --host=i686-pc-cygwin --target=i686-pc-cygwin
--without-libiconv-prefix --without-libintl-prefix --libexecdir=/usr/lib
--enable-shared --enable-shared-libgcc --enable-static
--enable-version-specific-runtime-libs --enable-bootstrap --enable-__cxa_atexit
--with-dwarf2 --with-arch=i686 --with-tune=generic --disable-sjlj-exceptions
--enable-languages=ada,c,c++,fortran,java,lto,objc,obj-c++ --enable-graphite
--enable-threads=posix --enable-libatomic --enable-libgomp --disable-libitm
--enable-libquadmath --enable-libquadmath-support --enable-libssp
--enable-libada --enable-libjava --enable-libgcj-sublibs --disable-java-awt
--disable-symvers --with-ecj-jar=/usr/share/java/ecj.jar --with-gnu-ld
--with-gnu-as --with-cloog-include=/usr/include/cloog-isl
--without-libiconv-prefix --without-libintl-prefix --with-system-zlib
--enable-linker-build-id
Thread model: posix
gcc version 4.9.3 (GCC)
****************************************************
patching file rpy/rinterface/na_values.c
patching file rpy/rinterface/_rinterface.c
R version 3.2.3 (2015-12-10) -- "Wooden Christmas-Tree"
/home/Travis/sage/local/lib/R/bin/R CMD config --ldflags
/home/Travis/sage/local/lib/R/bin/R CMD config --cppflags
Compilation parameters for rpy2's C components:
include_dirs = ['/home/Travis/sage/local/lib/R//include']
library_dirs = ['/home/Travis/sage/local/lib',
'/home/Travis/sage/local/lib/R//lib']
libraries = ['R', 'bz2', 'z', 'rt', 'dl', 'm', 'iconv']
extra_link_args = ['-Wl,--large-address-aware', '-Wl,--stack=0xA00000',
'-fopenmp', '-Wl,-rpath,/home/Travis/sage/local/lib']
running install
running bdist_egg
running egg_info
writing requirements to rpy2.egg-info/requires.txt
writing rpy2.egg-info/PKG-INFO
writing top-level names to rpy2.egg-info/top_level.txt
writing dependency_links to rpy2.egg-info/dependency_links.txt
R version 3.2.3 (2015-12-10) -- "Wooden Christmas-Tree"
reading manifest file 'rpy2.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no files found matching 'README' anywhere in distribution
warning: no previously-included files matching '*patch*' found anywhere in
distribution
warning: no previously-included files matching '*diff*' found anywhere in
distribution
warning: no previously-included files matching '.hg' found anywhere in
distribution
warning: no files found matching 'MANIFEST'
warning: no files found matching 'README'
warning: no files found matching 'MPL_LICENSE'
warning: no files found matching 'GPL_LICENSE'
warning: no files found matching 'LGPL_LICENSE'
no previously-included directories found matching 'dist'
warning: no files found matching 'doc/source/rpy2_logo.png'
writing manifest file 'rpy2.egg-info/SOURCES.txt'
installing library code to build/bdist.cygwin-2.3.1-i686/egg
running build_clib
building 'r_utils' library
creating build
creating build/temp.cygwin-2.3.1-i686-2.7
creating build/temp.cygwin-2.3.1-i686-2.7/rpy
creating build/temp.cygwin-2.3.1-i686-2.7/rpy/rinterface
gcc -I/usr/include/ncurses -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3
-Wall -I./rpy/rinterface -I/home/Travis/sage/local/lib/R//include -c
./rpy/rinterface/r_utils.c -o
build/temp.cygwin-2.3.1-i686-2.7/./rpy/rinterface/r_utils.o
./rpy/rinterface/r_utils.c: In function 'externallymanaged_vector':
./rpy/rinterface/r_utils.c:236:3: warning: implicit declaration of function
'malloc' [-Wimplicit-function-declaration]
ExternallyManagedVector *extvector = malloc(sizeof(ExternallyManagedVector));
^
./rpy/rinterface/r_utils.c:236:40: warning: incompatible implicit declaration
of built-in function 'malloc'
ExternallyManagedVector *extvector = malloc(sizeof(ExternallyManagedVector));
^
ar rc build/temp.cygwin-2.3.1-i686-2.7/libr_utils.a
build/temp.cygwin-2.3.1-i686-2.7/./rpy/rinterface/r_utils.o
running install_lib
running build_py
creating build/lib.cygwin-2.3.1-i686-2.7
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2
copying ./rpy/rpy_classic.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2
copying ./rpy/tests.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2
copying ./rpy/tests_rpy_classic.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2
copying ./rpy/__init__.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/rlike
copying ./rpy/rlike/container.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2/rlike
copying ./rpy/rlike/functional.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2/rlike
copying ./rpy/rlike/indexing.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2/rlike
copying ./rpy/rlike/__init__.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2/rlike
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/rlike/tests
copying ./rpy/rlike/tests/test_container.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rlike/tests
copying ./rpy/rlike/tests/test_functional.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rlike/tests
copying ./rpy/rlike/tests/test_indexing.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rlike/tests
copying ./rpy/rlike/tests/__init__.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rlike/tests
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface
copying ./rpy/rinterface/__init__.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/tests
copying ./rpy/rinterface/tests/test_Device.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/tests
copying ./rpy/rinterface/tests/test_EmbeddedR.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/tests
copying ./rpy/rinterface/tests/test_Sexp.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/tests
copying ./rpy/rinterface/tests/test_SexpClosure.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/tests
copying ./rpy/rinterface/tests/test_SexpEnvironment.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/tests
copying ./rpy/rinterface/tests/test_SexpExtPtr.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/tests
copying ./rpy/rinterface/tests/test_SexpSymbol.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/tests
copying ./rpy/rinterface/tests/test_SexpVector.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/tests
copying ./rpy/rinterface/tests/test_SexpVectorNumeric.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/tests
copying ./rpy/rinterface/tests/__init__.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/tests
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/constants.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/conversion.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/environments.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/functions.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/help.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/language.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/methods.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/numpy2ri.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/packages.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/packages_utils.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/pandas2ri.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/robject.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/vectors.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
copying ./rpy/robjects/__init__.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testArray.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testDataFrame.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testEnvironment.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testFormula.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testFunction.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testHelp.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testLanguage.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testMethods.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testNumpyConversions.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testPackages.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testPandasConversions.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testRObject.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testRobjects.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/testVector.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
copying ./rpy/robjects/tests/__init__.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/tests
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/lib
copying ./rpy/robjects/lib/dplyr.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/lib
copying ./rpy/robjects/lib/ggplot2.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/lib
copying ./rpy/robjects/lib/grid.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/lib
copying ./rpy/robjects/lib/__init__.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/lib
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/lib/tests
copying ./rpy/robjects/lib/tests/test_dplyr.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/lib/tests
copying ./rpy/robjects/lib/tests/test_ggplot2.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/lib/tests
copying ./rpy/robjects/lib/tests/__init__.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/robjects/lib/tests
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/interactive
copying ./rpy/interactive/packages.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/interactive
copying ./rpy/interactive/process_revents.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/interactive
copying ./rpy/interactive/__init__.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/interactive
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/interactive/tests
copying ./rpy/interactive/tests/__init__.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/interactive/tests
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/ipython
copying ./rpy/ipython/ggplot.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2/ipython
copying ./rpy/ipython/html.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2/ipython
copying ./rpy/ipython/rmagic.py -> build/lib.cygwin-2.3.1-i686-2.7/rpy2/ipython
copying ./rpy/ipython/__init__.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/ipython
creating build/lib.cygwin-2.3.1-i686-2.7/rpy2/ipython/tests
copying ./rpy/ipython/tests/test_rmagic.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/ipython/tests
copying ./rpy/ipython/tests/__init__.py ->
build/lib.cygwin-2.3.1-i686-2.7/rpy2/ipython/tests
running build_ext
building 'rpy2.rinterface._rinterface' extension
gcc -I/usr/include/ncurses -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3
-Wall -DR_INTERFACE_PTRS=1 -DHAVE_POSIX_SIGJMP=1 -DRIF_HAS_RSIGHAND=1
-DCSTACK_DEFNS=1 -DHAS_READLINE=1 -I./rpy/rinterface
-I/home/Travis/sage/local/lib/R//include
-I/home/Travis/sage/local/include/python2.7 -c ./rpy/rinterface/_rinterface.c
-o build/temp.cygwin-2.3.1-i686-2.7/./rpy/rinterface/_rinterface.o
In file included from ./rpy/rinterface/_rinterface.c:122:0:
./rpy/rinterface/embeddedr.c: In function 'SexpObject_clear':
./rpy/rinterface/embeddedr.c:48:12: warning: unused variable 'res'
[-Wunused-variable]
SEXP res = rpy2_remove(Rf_mkString(name_buf),
^
In file included from ./rpy/rinterface/_rinterface.c:125:0:
./rpy/rinterface/sexp.c: In function 'Sexp_init':
./rpy/rinterface/sexp.c:738:13: warning: unused variable 'copy'
[-Wunused-variable]
PyObject *copy = Py_True;
^
In file included from ./rpy/rinterface/_rinterface.c:58:0:
./rpy/rinterface/_rinterface.c: At top level:
./rpy/rinterface/_rinterface.h:203:44: warning: 'PyRinterface_IsInitialized'
declared 'static' but never defined [-Wunused-function]
static PyRinterface_IsInitialized_RETURN PyRinterface_IsInitialized
PyRinterface_IsInitialized_PROTO;
^
./rpy/rinterface/_rinterface.h:204:38: warning: 'PyRinterface_FindFun' declared
'static' but never defined [-Wunused-function]
static PyRinterface_FindFun_RETURN PyRinterface_FindFun
PyRinterface_FindFun_PROTO;
^
./rpy/rinterface/_rinterface.h:205:20: warning: 'embeddedR_isInitialized'
defined but not used [-Wunused-variable]
static PyObject *embeddedR_isInitialized;
^
In file included from ./rpy/rinterface/_rinterface.c:128:0:
./rpy/rinterface/sequence.c:2168:1: warning: 'ComplexVectorSexp_AsSexp' defined
but not used [-Wunused-function]
ComplexVectorSexp_AsSexp(PyObject *pyfloat) {
^
In file included from ./rpy/rinterface/_rinterface.c:58:0:
./rpy/rinterface/_rinterface.c: In function 'EmbeddedR_ShowFiles':
./rpy/rinterface/_rinterface.h:72:5: warning: 'gstate' may be used
uninitialized in this function [-Wmaybe-uninitialized]
PyGILState_Release(gstate); \
^
./rpy/rinterface/_rinterface.c:837:20: note: 'gstate' was declared here
PyGILState_STATE gstate;
^
./rpy/rinterface/_rinterface.c: In function 'EmbeddedR_WriteConsoleEx':
./rpy/rinterface/_rinterface.c:383:10: warning: 'consolecallback' may be used
uninitialized in this function [-Wmaybe-uninitialized]
result = PyEval_CallObject(consolecallback, arglist);
^
In file included from ./rpy/rinterface/_rinterface.c:58:0:
./rpy/rinterface/_rinterface.c: In function 'EmbeddedR_CleanUp':
./rpy/rinterface/_rinterface.h:72:5: warning: 'gstate' may be used
uninitialized in this function [-Wmaybe-uninitialized]
PyGILState_Release(gstate); \
^
./rpy/rinterface/_rinterface.c:985:20: note: 'gstate' was declared here
PyGILState_STATE gstate;
^
gcc -shared -Wl,--enable-auto-image-base -L/home/Travis/sage/local/lib
-Wl,-rpath,/home/Travis/sage/local/lib -L/home/Travis/sage/local/lib
-Wl,-rpath,/home/Travis/sage/local/lib
build/temp.cygwin-2.3.1-i686-2.7/./rpy/rinterface/_rinterface.o
-L/home/Travis/sage/local/lib -L/home/Travis/sage/local/lib/R//lib
-L/home/Travis/sage/local/lib/python2.7/config -L/home/Travis/sage/local/lib
-Lbuild/temp.cygwin-2.3.1-i686-2.7 -Wl,-R/home/Travis/sage/local/lib
-Wl,-R/home/Travis/sage/local/lib/R//lib -lR -lbz2 -lz -lrt -ldl -lm -liconv
-lpython2.7 -lr_utils -o
build/lib.cygwin-2.3.1-i686-2.7/rpy2/rinterface/_rinterface.dll
-Wl,--large-address-aware -Wl,--stack=0xA00000 -fopenmp
-Wl,-rpath,/home/Travis/sage/local/lib
build/temp.cygwin-2.3.1-i686-2.7/./rpy/rinterface/_rinterface.o: In function
`EmbeddedR_init':
/home/Travis/sage/local/var/tmp/sage/build/rpy2-2.7.5/src/./rpy/rinterface/_rinterface.c:1399:
undefined reference to `rl_completer_word_break_characters'
/home/Travis/sage/local/var/tmp/sage/build/rpy2-2.7.5/src/./rpy/rinterface/_rinterface.c:1400:
undefined reference to `rl_completer_word_break_characters'
/home/Travis/sage/local/var/tmp/sage/build/rpy2-2.7.5/src/./rpy/rinterface/_rinterface.c:1402:
undefined reference to `rl_basic_word_break_characters'
/home/Travis/sage/local/var/tmp/sage/build/rpy2-2.7.5/src/./rpy/rinterface/_rinterface.c:1403:
undefined reference to `rl_basic_word_break_characters'
collect2: error: ld returned 1 exit status
error: command 'gcc' failed with exit status 1
real 0m5.125s
user 0m2.626s
sys 0m1.804s
************************************************************************
Error installing package rpy2-2.7.5
************************************************************************
Please email sage-devel (http://groups.google.com/group/sage-devel)
explaining the problem and including the relevant part of the log file
/home/Travis/sage/logs/pkgs/rpy2-2.7.5.log
Describe your computer, operating system, etc.
If you want to try to fix the problem yourself, *don't* just cd to
/home/Travis/sage/local/var/tmp/sage/build/rpy2-2.7.5 and type 'make' or
whatever is appropriate.
Instead, the following commands setup all environment variables
correctly and load a subshell for you to debug the error:
(cd '/home/Travis/sage/local/var/tmp/sage/build/rpy2-2.7.5' &&
'/home/Travis/sage/sage' --sh)
When you are done debugging, you can type "exit" to leave the subshell.
************************************************************************
