On msys while configuring GMP with
./configure --build=x86_64-w64-mingw32 --host=x86_64-w64-mingw32 -- disable-static --enable-shared --enable-cxx, the mp_limb_t is
defined as long long. How to configure mp_limb_t to be long?
Related
I am currently hunting a bug using git bisect in linux staging-testing tree.
Some commits are giving following errors after I try to build them:
subcmd-util.h:58:31: error: pointer may be used after ‘realloc’ [-Werror=use-after-free]
58 | ret = realloc(ptr, 1);
check.c:2867:58: error: ‘%d’ directive output may be truncated writing between 1 and 10 bytes into a region of size 9 [-Werror=format-truncation=]
2867 | snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
I tried adding -Wno-error=use-after-free to KBUILD_FLAGS in main Makefile, tried adding
KBUILD_CFLAGS += $(call cc-disable-warning, use-after-free)
I even tried removing -Werror from CFLAGS in Makefile in folder where problematic files are located, but nothing worked.
More information:
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/12.1.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /build/gcc/src/gcc/configure --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-bootstrap --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.artixlinux.org/ --with-linker-hash-style=gnu --with-system-zlib --enable-__cxa_atexit --enable-cet=auto --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-default-ssp --enable-gnu-indirect-function --enable-gnu-unique-object --enable-linker-build-id --enable-lto --enable-multilib --enable-plugin --enable-shared --enable-threads=posix --disable-libssp --disable-libstdcxx-pch --disable-werror --with-build-config=bootstrap-lto --enable-link-serialization=1
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.1.0 (GCC)
Linux staging tree: git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git.
One of the commits that gives following warnings: 2ab9c9675fe892e7fe9fa8c0a6125e2b40d2889d.
To compile older version of kernel I needed older compiler ("Linux kernel sources are in general not forward-compatible with new compilers"). In my case the kernel version was 5.16.0 and I could compile it with gcc 11. If you have gcc 11 specific warnings then try gcc 10 and so on.
Except CC flags, I also needed set to HOSTCC flags to use gcc-11 compiler:
make HOSTCC=gcc-11 CC=gcc-11
I am trying to compile a Fortran code (package) with gfortran in a Linux server, on which I have no root access.
It has a Makefile and when I run make I get this error
/bin/ld: cannot find -lgfortran
collect2: error: ld returned 1 exit status
but gcc is already installed on cluster.
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --disable-libgcj --with-isl=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC)
or libgfortran:
locate libgfortran
/usr/lib/libgfortran.so.3.0.0
/usr/lib/gcc/x86_64-redhat-linux/4.8.2/libgfortran.so
/usr/lib/gcc/x86_64-redhat-linux/4.8.2/libgfortran.spec
/usr/lib/gcc/x86_64-redhat-linux/4.8.2/libgfortranbegin.a
/usr/lib/gcc/x86_64-redhat-linux/4.8.2/32/libgfortran.a
/usr/lib/gcc/x86_64-redhat-linux/4.8.2/32/libgfortran.so
/usr/lib/gcc/x86_64-redhat-linux/4.8.2/32/libgfortranbegin.a
/usr/lib64/libgfortran.so.1
/usr/lib64/libgfortran.so.1.0.0
/usr/lib64/libgfortran.so.3
/usr/lib64/libgfortran.so.3.0.0
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog-2002.libgfortran.bz2
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog-2003.libgfortran.bz2
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog-2004.libgfortran.bz2
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog-2005.libgfortran.bz2
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog-2006.libgfortran.bz2
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog-2007.libgfortran.bz2
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog-2008.libgfortran.bz2
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog-2009.libgfortran.bz2
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog-2010.libgfortran.bz2
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog-2011.libgfortran.bz2
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog-2012.libgfortran.bz2
/usr/share/doc/gcc-gfortran-4.8.5/ChangeLog.libgfortran.bz2
and this is the output of installed package
yum list gcc-gfortran
Failed to set locale, defaulting to C
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
Installed Packages
gcc-gfortran.x86_64 4.8.5-16.el7 #local-rhels7.4-x86_64--install-rhels7.4-x86_64
The question is why it can not find libgfortran, while gcc is installed?
I have also tried to update $PATH but it did not change anything.
I am just a user of the server without root access.
I have a really strange problem. I am trying to compile a source (telegram-cli) which has dependency on openssl, libevent and other libraries.
The system is centos 6.9
and "Development Tools" and libevent-devel and openssl-devel are installed via yum. By the way, ./configure results in this output:
Using this repo (Telegram-CLI):
git clone --recursive https://github.com/vysheng/tg.git && cd tg
./configure :
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for library containing clock_gettime... no
checking for library containing backtrace... no
checking for event_base_new in -levent... no
configure: error: no libevent found
gcc -v -N :
Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-ppl --with-cloog --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.4.7 20120313 (Red Hat 4.4.7-18) (GCC)
I also added this to /etc/ld.so.conf.d/ :
/usr/lib64
/usr/lib
/usr/local/lib64
/usr/local/lib
/lib
/lib64
/usr/lib64/openssl/engines
/usr/lib64/libevent-1.4.so.2.1.3
/usr/lib64/libgcrypt.so
/usr/lib64/libevent.so
The strange point is all these configs are the same on another centos system and everything just works fine. :(
I guess the libraries exist on the system but gcc or linker could not find them. Can anyone help?
Thanks
You need libevent-devel
yum install libevent-devel
I'm trying to build a gcc multilib tool chain on AMD64 version of fresh ubuntu 14.04 installation. It only has a x86_64 gcc and g++ installation without multilib support. My configuration line is
../configure --disable-checking --enable-languages=c,c++ --enable-multiarch --enable-multilib --enable-shared --enable-threads=posix --with-system-zlib
When I make it fails somewhere around building 32bit libgcc complaining about a missing sys/cdefs.h
I can't post a build log right now but the error occurs in the folder objdir/x86_64-unknown-linux-gnu/32/libgcc/
What am I doing wrong?
I have installed gcc-4.6.2 from source, but it can't build 32bit program, it seemed doesn't have 32bit lib. error report by gcc:
/usr/local/gcc-4.6.2/lib/gcc/x86_64-redhat-linux/4.6.2/crtbegin.o: could not read symbols: File in wrong format
my gcc-4.6.2 config is:
Target: x86_64-redhat-linux
Configured with: ../gcc-4.6.2/configure --prefix=/usr/local/gcc-4.6.2 --mandir=/usr/share/man --infodir=/usr/share/info --enable-bootstrap --enable-shared --enable-threads=posix --disable-checking --with-system-zlib --enable-__cxa_atexit --enable-languages=c,c++ --with-gmp=/usr/local/gmp-5.0.1 --with-mpfr=/usr/local/mpfr-2.4.2 --with-mpc=/usr/local/mpc-1.0.1 --without-ppl --without-cloog --with-arch-32=i686 --build=x86_64-redhat-linux --disable-multilib
Thread model: posix
Configure and build gcc with:
--enable-multilib --with-multilib-list=m32,m64
Once you install it, you can then compile for 32-bit by passing the "-m32" option to gcc. Note that you will also need 32-bit versions of all needed libraries (like glibc.)