How can I conditionally include a file in an .rpm
based on a define _foobar
being set or not? The define _foobar
would contain the absolute path inside the build root. The file is there.
According to the documentation, I expected the following to work (note: there are more files in this %files
section, but this is the gist):
%files
%if %{_foobar}
%{_foobar}
%endif
which, however, gives me the error:
error: parse error in expression
error: /path/to/specfile:LINENO: parseExpressionBoolean returns -1
where /path/to/specfile:LINENO
is the path to the .spec
file and the line number of the line with the %if
.
This is how I solved my problem
step 1 :
In Build section .. somewhere I wrote :
%build
.....
#check my condition here & if true define some macro
%define is_valid %( if [ -f /usr/bin/myfile ]; then echo "1" ; else echo "0"; fi )
#after his normal continuation
.....
...
Step 2: in install section
%install
......
#do something in that condition
if %is_valid
install -m 0644 <file>
%endif
#rest all your stuff
................
Step 3:in files section
%files
if %is_valid
%{_dir}/<file>
%endif
That's it
It works.
PS : I cannot give you full code hence giving all useful snippet
Thanks to this blog post I found a version that works for me:
%files
%if %{?_foobar:1}%{!?_foobar:0}
%{_foobar}
%endif
What this does is to expand to %if 1
if the define is set and %if 0
otherwise.
If someone else has a better solution, please answer. I'll certainly prefer accepting someone else's answer over my own.