i am trying to build packagekit from source, i followed the steps to do so from the link (<a href="https://fedoraproject.org/wiki/BuildingPackageKitFromSource">https://fedoraproject.org/wiki/BuildingPackageKitFromSource</a>) but encountered an configure error. (/home/pranjal is my home directory) ./autogen.sh --enable-maintainer-mode --enable-gtk-doc --prefix= /home/pranjal/.root --enable-apt --enable-dummy --enable-docbook-docs --enable-tests --enable-developer --enable-local --with-default-backend=apt this is the complete output : libtoolize: putting auxiliary files in `.'. libtoolize: copying file `./config.guess' libtoolize: copying file `./config.sub' libtoolize: copying file `./install-sh' libtoolize: copying file `./ltmain.sh' libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'. libtoolize: copying file `m4/libtool.m4' libtoolize: You should add the contents of `m4/libtool.m4' to `aclocal.m4'. libtoolize: copying file `m4/ltoptions.m4' libtoolize: You should add the contents of `m4/ltoptions.m4' to `aclocal.m4'. libtoolize: copying file `m4/ltsugar.m4' libtoolize: You should add the contents of `m4/ltsugar.m4' to `aclocal.m4'. libtoolize: copying file `m4/ltversion.m4' libtoolize: copying file `m4/lt~obsolete.m4' libtoolize: You should add the contents of `m4/lt~obsolete.m4' to `aclocal.m4'. libtoolize: Consider adding `-I m4' to ACLOCAL_AMFLAGS in Makefile.am. intltoolize: 'po/<a href="http://Makefile.in.in">Makefile.in.in</a>' exists: use '--force' to overwrite Running ./configure --enable-maintainer-mode --enable-gtk-doc --enable-maintainer-mode --enable-gtk-doc --prefix= /home/pranjal/.root --enable-apt --enable-dummy --enable-docbook-docs --enable-tests --enable-developer --enable-local --with-default-backend=apt ... configure: WARNING: you should use --build, --host, --target configure: WARNING: invalid host type: /home/pranjal/.root checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... no checking for mawk... mawk checking whether make sets $(MAKE)... yes checking for /home/pranjal/.root-gcc... no checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... 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 style of include used by make... GNU checking dependency style of gcc... gcc3 checking for /home/pranjal/.root-g++... no checking for /home/pranjal/.root-c++... no checking for /home/pranjal/.root-gpp... no checking for /home/pranjal/.root-aCC... no checking for /home/pranjal/.root-CC... no checking for /home/pranjal/.root-cxx... no checking for /home/pranjal/.root-cc++... no checking for /home/pranjal/.root-cl.exe... no checking for /home/pranjal/.root-FCC... no checking for /home/pranjal/.root-KCC... no checking for /home/pranjal/.root-RCC... no checking for /home/pranjal/.root-xlC_r... no checking for /home/pranjal/.root-xlC... no checking for g++... g++ checking whether we are using the GNU C++ compiler... yes checking whether g++ accepts -g... yes checking dependency style of g++... gcc3 checking for a BSD-compatible install... /usr/bin/install -c checking for library containing strerror... none required checking how to run the C preprocessor... gcc -E checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for ANSI C header files... yes checking build system type... Invalid configuration `/home/pranjal/.root': machine `/home/pranjal/.root' not recognized configure: error: /bin/bash ./config.sub /home/pranjal/.root failed kindly help. -Regards -Pranjal Pandit