[New-bugs-announce] [issue6237] Build errors when using LDFLAGS="-Wl, --no-undefined"

[Funda Wang]

New submission from Funda Wang <fundawang at gmail.com>:

============================
gcc -pthread -Wl,--as-needed -Wl,--no-undefined -Wl,-z,relro -lstdc++ -
Xlinker -export-dynamic -o python \
                        Modules/python.o \
                        -L. -lpython2.6 -lpthread -ldl  -lutil   -lm
build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
_ctypes/_ctypes_test.o: In function `my_sqrt':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/_ctypes/_ctypes_test.c:83: 
undefined reference to `sqrt'
collect2: ld returned 1 exit status
build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
audioop.o: In function `audioop_rms':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/audioop.c:419: undefined 
reference to `sqrt'
collect2: ld returned 1 exit status
build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
dlmodule.o: In function `dl_open':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/dlmodule.c:187: undefined 
reference to `dlopen'
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/dlmodule.c:189: undefined 
reference to `dlerror'
build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
dlmodule.o: In function `dl_close':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/dlmodule.c:49: undefined 
reference to `dlclose'
build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
dlmodule.o: In function `dl_sym':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/dlmodule.c:68: undefined 
reference to `dlsym'
build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
dlmodule.o: In function `dl_call':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/dlmodule.c:96: undefined 
reference to `dlsym'
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/dlmodule.c:100: undefined 
reference to `dlerror'
build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
dlmodule.o: In function `dl_dealloc':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/dlmodule.c:41: undefined 
reference to `dlclose'
collect2: ld returned 1 exit status

============================

build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
_ctypes/_ctypes.o: In function `CDataType_in_dll':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/_ctypes/_ctypes.c:600: 
undefined reference to `dlsym'
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/_ctypes/_ctypes.c:608: 
undefined reference to `dlerror'
build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
_ctypes/_ctypes.o: In function `CFuncPtr_FromDll':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/_ctypes/_ctypes.c:3285: 
undefined reference to `dlsym'
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/_ctypes/_ctypes.c:3293: 
undefined reference to `dlerror'
/usr/bin/ld: Dwarf Error: Offset (2614) greater than or equal 
to .debug_str size (815).
build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
_ctypes/callproc.o: In function `py_dl_sym':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/_ctypes/callproc.c:1448: 
undefined reference to `dlsym'
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/_ctypes/callproc.c:1451: 
undefined reference to `dlerror'
build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
_ctypes/callproc.o: In function `py_dl_close':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/_ctypes/callproc.c:1430: 
undefined reference to `dlclose'
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/_ctypes/callproc.c:1432: 
undefined reference to `dlerror'
build/temp.linux-i686-2.6/home/fwang/rpm/BUILD/Python-2.6.2/Modules/
_ctypes/callproc.o: In function `py_dl_open':
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/_ctypes/callproc.c:1412: 
undefined reference to `dlopen'
/home/fwang/rpm/BUILD/Python-2.6.2/Modules/_ctypes/callproc.c:1414: 
undefined reference to `dlerror'
collect2: ld returned 1 exit status

============================


Failed to find the necessary bits to build these modules:
bsddb185           sunaudiodev
To find the necessary bits, look in setup.py in detect_modules() for 
the module's name.


Failed to build these modules:
_ctypes            _ctypes_test       audioop
dl

============================

I've attached the detail build log.

----------
components: Build
files: build.0.20090608003719.log.bz2
messages: 89066
nosy: fundawang
severity: normal
status: open
title: Build errors when using LDFLAGS="-Wl,--no-undefined"
type: compile error
versions: Python 2.6
Added file: http://bugs.python.org/file14224/build.0.20090608003719.log.bz2

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<http://bugs.python.org/issue6237>
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