sdl.m4: Call $PKG_CONFIG rather than hard-coding pkg-config #326
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
When cross-compiling, pkg.m4 will set the PKG_CONFIG variable to a suitable pkg-config executable, which might be a host-architecture-prefixed name like aarch64-linux-gnu-pkg-config. This ensures that we will use a suitable search path that is suitable for the host architecture (the machine we are compiling for) rather than the build architecture (the machine we are compiling on) to find dependency libraries like SDL. When using pkg-config as a substitute for sdl2-config, we will similarly need to use the host-architecture-prefixed pkg-config. Setting the PKG_CONFIG environment variable is also the canonical way to request that a different pkg-config implementation be used, if that becomes necessary for some reason. Co-authored-by: Helmut Grohne <[email protected]> Bug-Debian: https://bugs.debian.org/1059749 Signed-off-by: Simon McVittie <[email protected]>
|
This sdl.m4 could also be copied into https://github.com/libsdl-org/SDL-1.2 if desired. |
|
Based on a patch from @helmutg. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
When cross-compiling, pkg.m4 will set the PKG_CONFIG variable to a suitable pkg-config executable, which might be a host-architecture-prefixed name like aarch64-linux-gnu-pkg-config. This ensures that we will use a suitable search path that is suitable for the host architecture (the machine we are compiling for) rather than the build architecture (the machine we are compiling on) to find dependency libraries like SDL. When using pkg-config as a substitute for sdl2-config, we will similarly need to use the host-architecture-prefixed pkg-config.
Setting the PKG_CONFIG environment variable is also the canonical way to request that a different pkg-config implementation be used, if that becomes necessary for some reason.
Bug-Debian: https://bugs.debian.org/1059749