RPM build spec help

[Sam Varshavchik]

Dan Track writes:

> Hi
> 
> I hope someone can help. Basically I want to access an environment
> variable and place it in my  macro in my spec file.
> 
> If I try to define a macro like the following:
> 
> %define oracle_home $ORACLE_HOME
> 
> and then try to build it "rpmbuild -ba perl-DBD-Oracle"
> 
> I get the following error:
> error: line 18: Dependency tokens must begin with alpha-numeric, '_'
> or '/': BuildRequires: $ORACLE_HOME/lib/libclntsh.so
> 
> On line 18 I have the following:
> BuildRequires: %{oracle_home}/lib/libclntsh.so
> 
> Any ideas how I can resolve this?

%{expand:%%define oracle_home %(echo $ORACLE_HOME)}

However, this is considered to be bad practice.  RPM build specs should not 
depend on the parent environment, because they won't be reproducible.  The 
correct way to do this is:

1) You should install Oracle via rpm.  Create an rpm package for Oracle, if 
necessary

2) Then, your BuildRequires becomes simply "BuildRequires: oracle"

3) Then, your %prep, %build, and %install sections would initialize 
ORACLE_HOME accordingly (use the same snippet in all three cases).

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