 What About The “virtual” Means？ |
OESF Forums > Distros, Development, and Model Specific Forums > Everything Development > Open Embedded  |
 May 12 2005, 07:16 PM
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#1
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Group: Members Posts: 4 Joined: 20-March 05 Member No.: 6,682  |
In local.conf ，we find word “virtual”。
for example: ASSUME_PROVIDED = "virtual/${TARGET_PREFIX}gcc virtual/libc" and use "bitbake virtual/kernel“ to build a kernel。 what about these ”virtual“ mean？ |
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May 13 2005, 12:39 AM
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#2
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 Group: Members Posts: 1,497 Joined: 12-November 03 From: Germany Member No.: 907 |
A virtual dependency is one that is fulfilled by more than one alternative provider.
Example: We have lots of kernels in OE for different models. All our kernels provide "virtual/kernel". Now external module packages don't need to know _what_ kernel they're building against, however they need that _a_ kernel has been built - hence they rely on 'virtual/kernel'. This is like saying "I don't care about which kind of ice-cream, I just want ice-cream" |
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