fedora - How to pass variables into spec files? -


i writing first spec file , 1 thing not understand how make dynamic. using other spec files reference , noticed many have name / version loaded dynamically. wondering how this? here example:

http://svn.apache.org/repos/asf/hbase/branches/0.94/src/packages/rpm/spec/hbase.spec

mainly wondering these sections mean: 

%define _source      @package.name@ %define _final_name  @final.name@  %define _prefix      @package.prefix@ %define _bin_dir     %{_prefix}/bin  %define _conf_dir    @package.conf.dir@ %define _include_dir %{_prefix}/include ....

also i'm wondering {_prefix} is?

sorry newbie questions. i'm having unusual amount of trouble finding info on this.

%{_prefix} (and lots of other macros) defined in /usr/lib/rpm/macros. these read rpmbuild , substituted when parsing spec file. %{_prefix} denotes installation prefix used when installing things root filesystem. /usr. macros in /usr/lib/rpm/macros* define paths , more according file system layout , packaging conventions of distribution 1 building package on. instance, distro might reason want have binaries installed in /foo/bin, in case ship macro file %{_bindir} macro set accordingly.

all keys between @ (such @package.name@) usually denote placeholders autoconf variables, these substituted when running autoconf, see [1]. these used automatically generate appropriate file (in case, spec file) template (which includes said @ delimited placeholders) when configuring source package.

as far passing other variables concerned, here options [2]. these may used when user wishes able dynamically control aspects of package.

[1] http://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/setting-output-variables.html

[2] how pass user defined parameters rpmbuild fill variables


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