https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77441
Bug ID: 77441
Summary: Cygwin64: g++ linker: infinite loop when linking a
shared library from objects compiled with std=c++14
Product: gcc
Version: 5.4.0
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zosrothko at orange dot fr
Target Milestone: ---
Created attachment 39532
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39532&action=edit
The g++ command produced by make upon linking the PocoDatad.dll
Hello
On a Cygwin64 system, the g++ linker is looping when linking a shared library
from objects compiled with the std=c++14 option.
Context:
$ uname -a
CYGWIN_NT-10.0 idefix 2.6.0(0.304/5/3) 2016-08-31 14:32 x86_64 Cygwin
$ gcc -v
Utilisation des specs internes.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-cygwin/5.4.0/lto-wrapper.exe
Cible : x86_64-pc-cygwin
Configuré avec:
/cygdrive/i/szsz/tmpp/gcc/gcc-5.4.0-1.x86_64/src/gcc-5.4.0/configure
--srcdir=/cygdrive/i/szsz/tmpp/gcc/gcc-5.4.0-1.x86_64/src/gcc-5.4.0
--prefix=/usr --exec-prefix=/usr --localstatedir=/var --sysconfdir=/etc
--docdir=/usr/share/doc/gcc --htmldir=/usr/share/doc/gcc/html -C
--build=x86_64-pc-cygwin --host=x86_64-pc-cygwin --target=x86_64-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-tune=generic
--enable-languages=ada,c,c++,fortran,lto,objc,obj-c++ --enable-graphite
--enable-threads=posix --enable-libatomic --enable-libcilkrts --enable-libgomp
--enable-libitm --enable-libquadmath --enable-libquadmath-support
--enable-libssp --enable-libada --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 --with-default-libstdcxx-abi=gcc4-compatible
Modèle de thread: posix
gcc version 5.4.0 (GCC)
This issue is always reproducible but I was not able to reduce the number of
objects to reproduce it. Here the way to get the ussie
1/ git clone -b c++11 https://github.com/Kampbell/poco.git poco-c++11
2/ cd poco-c++11
3/ ./configure --minimal --no-tests --no-samples
4/ vim config.make
5/ Remove 'Data' from the OMIT value at line 7
6/ save and exit from vim
7/ make
After compiling Foundation, Util, XML, Jason and Net modules, the make compiles
the Data module and loops upon linking the PocoDatad.dll
The building process takes some time, so be patient before arrinving to the
problem
