When I am trying to install a openvpn from a tarball ,
following error occurs
checking whether the C compiler works… no
configure: error: in `/home/shubhamd/Downloads/openvpn-2.3.2':
configure: error: C compiler cannot create executablesSee `config.log' for more details
and the config.log is as follows :
This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. It was created by OpenVPN configure 2.3.2, which was generated by GNU Autoconf 2.69. Invocation command line was $ ./configure ## --------- ## ## Platform. ## ## --------- ## hostname = shubhamd uname -m = x86_64 uname -r = 3.11.0-12-generic uname -s = Linux uname -v = #19-Ubuntu SMP Wed Oct 9 16:20:46 UTC 2013 /usr/bin/uname -p = unknown /bin/uname -X = unknown /bin/arch = unknown /usr/bin/arch -k = unknown /usr/convex/getsysinfo = unknown /usr/bin/hostinfo = unknown /bin/machine = unknown /usr/bin/oslevel = unknown /bin/universe = unknown PATH: /usr/local/sbin PATH: /usr/local/bin PATH: /usr/sbin PATH: /usr/bin PATH: /sbin PATH: /bin PATH: /usr/games PATH: /usr/local/games ## ----------- ## ## Core tests. ## ## ----------- ## configure:2873: checking for a BSD-compatible install configure:2941: result: /usr/bin/install -c configure:2952: checking whether build environment is sane configure:3002: result: yes configure:3143: checking for a thread-safe mkdir -p configure:3182: result: /bin/mkdir -p configure:3195: checking for gawk configure:3211: found /usr/bin/gawk configure:3222: result: gawk configure:3233: checking whether make sets $(MAKE) configure:3255: result: yes configure:3339: checking build system type configure:3353: result: x86_64-unknown-linux-gnu configure:3373: checking host system type configure:3386: result: x86_64-unknown-linux-gnu configure:3418: checking for style of include used by make configure:3446: result: GNU configure:3517: checking for gcc configure:3533: found /usr/bin/gcc configure:3544: result: gcc configure:3773: checking for C compiler version configure:3782: gcc --version >&5 gcc (Ubuntu/Linaro 4.8.1-10ubuntu8) 4.8.1 Copyright (C) 2013 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. configure:3793: $? = 0 configure:3782: gcc -v >&5 Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.8.1-10ubuntu8' --with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.8 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu8) configure:3793: $? = 0 configure:3782: gcc -V >&5 gcc: error: unrecognized command line option '-V' gcc: fatal error: no input files compilation terminated. configure:3793: $? = 4 configure:3782: gcc -qversion >&5 gcc: error: unrecognized command line option '-qversion' gcc: fatal error: no input files compilation terminated. configure:3793: $? = 4 configure:3813: checking whether the C compiler works configure:3835: gcc conftest.c >&5 /usr/bin/ld: cannot find crt1.o: No such file or directory /usr/bin/ld: cannot find crti.o: No such file or directory /usr/bin/ld: cannot find -lc /usr/bin/ld: cannot find crtn.o: No such file or directory collect2: error: ld returned 1 exit status configure:3839: $? = 1 configure:3877: result: no configure: failed program was: | /* confdefs.h */ | #define PACKAGE_NAME "OpenVPN" | #define PACKAGE_TARNAME "openvpn" | #define PACKAGE_VERSION "2.3.2" | #define PACKAGE_STRING "OpenVPN 2.3.2" | #define PACKAGE_BUGREPORT "openvpn-users@lists.sourceforge.net" | #define PACKAGE_URL "" | #define OPENVPN_VERSION_RESOURCE 2,3,2,0 | #define PACKAGE "openvpn" | #define VERSION "2.3.2" | /* end confdefs.h. */ | | int | main () | { | | ; | return 0; | } configure:3882: error: in `/home/shubhamd/Downloads/openvpn-2.3.2': configure:3884: error: C compiler cannot create executables See `config.log' for more details
How to fix the error ?
Best Answer
It's likely you need to install the
libc6-dev
package. The errors you see indicate the linker (ld
) is unable to link against the C library (and the object files it mentions,crt1.o
for example, are part of this package).I suggest you do
sudo apt-get install build-essential
, it will install, well, the essential tools and packages for basic builds to work.build-essential
is a meta-package, which doesn't install any files of its own but depends on the required packages, so it's a safe bet to install it.