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Diffstat (limited to 'XcodeConfig/xcconfigs-readme.txt')
| -rw-r--r-- | XcodeConfig/xcconfigs-readme.txt | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/XcodeConfig/xcconfigs-readme.txt b/XcodeConfig/xcconfigs-readme.txt index 5a44bb0..87a6dd7 100644 --- a/XcodeConfig/xcconfigs-readme.txt +++ b/XcodeConfig/xcconfigs-readme.txt @@ -1,4 +1,4 @@ -Xcode Config is sorta a black art, any time you have a set of rules, you +Xcode Configs are sort of a black art, any time you have a set of rules, you quickly hit a few exceptions. The main goal of using these is as follow: @@ -6,7 +6,7 @@ The main goal of using these is as follow: Edit your Project level build settings by removing as much as possible, and then set the per Configuration settings to one of the project xcode config files w/in the Project subfolder here. This will batch setup the project to -build Debug/Release w/ a specific SDK. +build Debug/Release with a specific SDK. If you are building a Shared Library, Loadable Bundle (Framework) or UnitTest you will need to apply a further Xcode Config file at the target level. You do @@ -30,3 +30,24 @@ support to make mixing SDKs easier. Remember: When using the configs at any given layer, make sure you set them for each build configuration you need (not just the active one). + +Many of the build settings are more than just yes/no flags and take +a list of values that you may want to change at different levels. +Xcode doesn't allow you to "inherit" settings with includes so you always +end up overriding settings accidentally. To avoid this, we instead +allow you to define settings at different levels +(GENERAL, PLATFORM (iPhone/Mac), CONFIGURATION (Release/Debug). +We do this by setting a GTM version of the setting (so for OTHER_CFLAGS it's +GTM_XXX_OTHER_CFLAGS where xxx is GENERAL, PLATFORM or CONFIGURATION depending +at what level the flag is set. These are all merged together in the +GTMMerge.xcconfig. Do not modify the base setting (OTHER_CFLAGS) instead modify +the GTM one at the level you want it modified. + +The major place this may affect you is that we have really tightened down on +the warnings. To make it easier for you to move your code onto the new +xcconfig files, we have split the warnings up into three categories, which in +general you can think of as easy, moderate and extreme. If you run into a lot +of warnings when you compile, look at changing the GTM_GENERAL_WARNING_CFLAGS +setting to only include lower levels (eg GTM_GENERAL_WARNING_CFLAGS1) and see +if that makes it easier on you. Look inside General.xcconfig and search for +GTM_GENERAL_WARNING_CFLAGS1 for more info. |