|Maximum RPM: Taking the Red Hat Package Manager to the Limit|
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This section describes the various macros used by RPM.
The %setup macro is used to unpack the original sources in preparation for the build. It is used in the %prep script:
The -n option is used to set the name of the software's build directory. This is necessary only when the source archive unpacks into a directory named other than <name>- <version>.
%setup -n cd-player
The -c option is used to direct %setup to create the top-level build directory before unpacking the sources.
The -D option is used to direct %setup to not delete the build directory prior to unpacking the sources. This option is used when more than one source archive is to be unpacked into the build directory, normally with the -b or -a options.
%setup -D -T -b 3
The -T option is used to direct %setup to not perform the default unpacking of the source archive specified by the first source tag. It is used with the -a or -b options.
%setup -D -T -a 1
The -b option is used to direct %setup to unpack the source archive specified on the nth source tag line before changing directory into the build directory.
%setup -D -T -b 2
The -a option is used to direct %setup to unpack the source archive specified on the nth source tag line after changing directory into the build directory.
%setup -D -T -a 5
The %patch macro, as its name implies, is used to apply patches to the unpacked sources. With no additional options specified, it will apply the patch file specified by the patch (or patch0) tag.
When there is more than one patch tag line in a spec file, they can be specified by appending the number of the patch tag to the %patch macro name itself.
The -P option is another method of applying a specific patch. The number from the patch tag follows the -P option. The following %patch macros both apply the patch specified on the patch2 tag line:
%patch -P 2 %patch2
The -p option is sent directly to the patch command. It is followed by a number which specifies the number of leading slashes (and the directories in between) to strip from any filenames present in the patch file.
When the patch command is used to apply a patch, unmodified copies of the files patched are renamed to end with the extension .orig. The -b option is used to change the extension used by patch.
%patch -b .fsstnd
The -E option is sent directly to the patch command. It is used to direct patch to remove any empty files after the patches have been applied.