What exactly is “DepCompareOp”?
There are a lot of pages, asking how to fix "W: Ignoring Provides line with DepCompareOp".
But what is "DepCompareOp" itself? I understand, that it relates to misconfigured "Provides:" field and somehow relates to packages, that depend on package provided. How can we tell whether "Provides:" is good or not?
debian package-management
edited Feb 26 '16 at 8:48
terdon♦
128k31249423
asked Feb 26 '16 at 8:33
I S
182
add a comment |
There are a lot of pages, asking how to fix "W: Ignoring Provides line with DepCompareOp".
But what is "DepCompareOp" itself? I understand, that it relates to misconfigured "Provides:" field and somehow relates to packages, that depend on package provided. How can we tell whether "Provides:" is good or not?
debian package-management
edited Feb 26 '16 at 8:48
terdon♦
128k31249423
asked Feb 26 '16 at 8:33
I S
182
add a comment |
There are a lot of pages, asking how to fix "W: Ignoring Provides line with DepCompareOp".
But what is "DepCompareOp" itself? I understand, that it relates to misconfigured "Provides:" field and somehow relates to packages, that depend on package provided. How can we tell whether "Provides:" is good or not?
debian package-management
edited Feb 26 '16 at 8:48
terdon♦
128k31249423
asked Feb 26 '16 at 8:33
I S
182
There are a lot of pages, asking how to fix "W: Ignoring Provides line with DepCompareOp".
But what is "DepCompareOp" itself? I understand, that it relates to misconfigured "Provides:" field and somehow relates to packages, that depend on package provided. How can we tell whether "Provides:" is good or not?
debian package-management
debian package-management
edited Feb 26 '16 at 8:48
terdon♦
128k31249423
asked Feb 26 '16 at 8:33
I S
182
edited Feb 26 '16 at 8:48
terdon♦
128k31249423
asked Feb 26 '16 at 8:33
I S
182
edited Feb 26 '16 at 8:48
terdon♦
128k31249423
edited Feb 26 '16 at 8:48
terdon♦
128k31249423
edited Feb 26 '16 at 8:48
terdon♦
128k31249423
128k31249423
asked Feb 26 '16 at 8:33
I S
182
asked Feb 26 '16 at 8:33
I S
182
asked Feb 26 '16 at 8:33
I S
182
182
add a comment |
add a comment |
1 Answer
1
active
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"DepCompareOp" stands for "dependency comparison operator", i.e. "=", "<=", ">=", "<<" or ">>", used to compare package versions. The message comes fromapt, and is printed when a package is encountered with a "Provides" declaration including a non-equal dependency comparison operator, which is invalid. (dpkg now supports versioned-provides, which is why the error message changed to explicitly mention non-equal operators.)
So basically, a package can declare
Provides: some-other-package
in its control file and be fine, or (since mid-2014)
Provides: some-other-package (= version)
but not
Provides: some-other-package (<< version)
In the past, any mention of a version would have caused apt-based tools to print
Ignoring Provides line with DepCompareOp for package ...
whereas nowadays only the latter will produce
Ignoring Provides line with non-equal DepCompareOp for package ...
answered Feb 26 '16 at 8:48
Stephen Kitt
164k24366445
add a comment |
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1 Answer
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1 Answer
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votes
"DepCompareOp" stands for "dependency comparison operator", i.e. "=", "<=", ">=", "<<" or ">>", used to compare package versions. The message comes fromapt, and is printed when a package is encountered with a "Provides" declaration including a non-equal dependency comparison operator, which is invalid. (dpkg now supports versioned-provides, which is why the error message changed to explicitly mention non-equal operators.)
So basically, a package can declare
Provides: some-other-package
in its control file and be fine, or (since mid-2014)
Provides: some-other-package (= version)
but not
Provides: some-other-package (<< version)
In the past, any mention of a version would have caused apt-based tools to print
Ignoring Provides line with DepCompareOp for package ...
whereas nowadays only the latter will produce
Ignoring Provides line with non-equal DepCompareOp for package ...
answered Feb 26 '16 at 8:48
Stephen Kitt
164k24366445
add a comment |
"DepCompareOp" stands for "dependency comparison operator", i.e. "=", "<=", ">=", "<<" or ">>", used to compare package versions. The message comes fromapt, and is printed when a package is encountered with a "Provides" declaration including a non-equal dependency comparison operator, which is invalid. (dpkg now supports versioned-provides, which is why the error message changed to explicitly mention non-equal operators.)
So basically, a package can declare
Provides: some-other-package
in its control file and be fine, or (since mid-2014)
Provides: some-other-package (= version)
but not
Provides: some-other-package (<< version)
In the past, any mention of a version would have caused apt-based tools to print
Ignoring Provides line with DepCompareOp for package ...
whereas nowadays only the latter will produce
Ignoring Provides line with non-equal DepCompareOp for package ...
answered Feb 26 '16 at 8:48
Stephen Kitt
164k24366445
add a comment |
"DepCompareOp" stands for "dependency comparison operator", i.e. "=", "<=", ">=", "<<" or ">>", used to compare package versions. The message comes fromapt, and is printed when a package is encountered with a "Provides" declaration including a non-equal dependency comparison operator, which is invalid. (dpkg now supports versioned-provides, which is why the error message changed to explicitly mention non-equal operators.)
So basically, a package can declare
Provides: some-other-package
in its control file and be fine, or (since mid-2014)
Provides: some-other-package (= version)
but not
Provides: some-other-package (<< version)
In the past, any mention of a version would have caused apt-based tools to print
Ignoring Provides line with DepCompareOp for package ...
whereas nowadays only the latter will produce
Ignoring Provides line with non-equal DepCompareOp for package ...
answered Feb 26 '16 at 8:48
Stephen Kitt
164k24366445
"DepCompareOp" stands for "dependency comparison operator", i.e. "=", "<=", ">=", "<<" or ">>", used to compare package versions. The message comes fromapt, and is printed when a package is encountered with a "Provides" declaration including a non-equal dependency comparison operator, which is invalid. (dpkg now supports versioned-provides, which is why the error message changed to explicitly mention non-equal operators.)
So basically, a package can declare
Provides: some-other-package
in its control file and be fine, or (since mid-2014)
Provides: some-other-package (= version)
but not
Provides: some-other-package (<< version)
In the past, any mention of a version would have caused apt-based tools to print
Ignoring Provides line with DepCompareOp for package ...
whereas nowadays only the latter will produce
Ignoring Provides line with non-equal DepCompareOp for package ...
answered Feb 26 '16 at 8:48
Stephen Kitt
164k24366445
edited 9 hours ago
answered Feb 26 '16 at 8:48
Stephen Kitt
164k24366445
answered Feb 26 '16 at 8:48
Stephen Kitt
164k24366445
answered Feb 26 '16 at 8:48
Stephen Kitt
164k24366445
164k24366445
add a comment |
add a comment |
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