Fedora Linux

Current Week Number

$ date +%W
42

rpmbuild with rpmrc

RPM_DIR=`pwd`/rpm
echo "%_topdir $RPM_DIR" > rpmmacros
echo "macrofiles:     /usr/lib/rpm/macros:/usr/lib/rpm/%{_target}/macros:/usr/lib/rpm/redhat/macros:/etc/rpm/macros.*:/etc/rpm/macros:/etc/rpm/%{_target}/macros:~/.rpmmacros:rpmmacros" > rpmrc

mkdir -p $RPM_DIR/{BUILD,RPMS,SOURCES,SPECS,SRPMS}

rpmbuild --rcfile rpmrc --rebuild some.source.rpm

rpmbuild --rcfile rpmrc --define 'dist .el5' -without java -without python \
 --target=x86_64 -ba rpm/SPECS/protobuf.spec

or redefine topdir as

rpmbuild --define "_topdir /home/user/rpmdir" --define 'dist .el5' \
 -without java -without python  --target=x86_64 -ba rpm/SPECS/protobuf.spec

use one thread to build for easy debugging

$ cat ~/.rpmmacros 
%_smp_mflags  -j1

RPM Spec File

Show Spec Macros

rpm --showrc
rpm --eval %{_tmppath}
rpm --eval %{_libdir}

Variables

${LINUX_VERSION}   # shell environment var
%{LINUX_VERSION}     # marco var
%define LINUX_VERSION ${LINUX_VERSION}    # ${LINUX_VERSION} not evaluated
%define LINUX_VERSION $(echo ${LINUX_VERSION}) # evaluated ${LINUX_VERSION}= 2.6.32.1

More Macros

http://www.rpm.org/wiki/PackagerDocs/Macros

TCP Shutdown and Close

http://blog.netherlabs.nl/articles/2009/01/18/the-ultimate-so_linger-page-or-why-is-my-tcp-not-reliable

Building Kernel Modules

% sudo yum install kernel-devel

% make -C /lib/modules/$(uname -r)/build/ M=$(pwd) modules

% strip --strip-debug themoudule.ko

% make -C /lib/modules/$(uname -r)/build/ M=$(pwd) clean

Building inside kernel tree

make SUBDIRS=drivers/acpi/ modules
make SUBDIRS=drivers/acpi/ button.ko