importing-commoncrypto-in-a-swift-framework
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You can
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actually
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build
...
a
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solution
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that
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"just
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works"
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(no
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need
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to
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copy
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a module.modulemap
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and SWIFT_INCLUDE_PATHS
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settings over
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to
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your
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project,
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as
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required
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by
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other
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solutions
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here),
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but
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it
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does
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require
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you
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to
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create
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a
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dummy
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framework/module
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that
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you'll
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import
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into
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your
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framework
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proper.
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We
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can
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also
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ensure
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it
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works
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regardless
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of
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platform
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(iphoneos,
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iphonesimulator,
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or macosx).
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Add
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a
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new
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framework
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target
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to
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your
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project
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and
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name
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it
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after
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the
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system
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library,
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e.g.,
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"CommonCrypto".
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(You
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can
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delete
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the
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umbrella
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header,
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CommonCrypto.h.)
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Add
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a
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new Configuration
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Settings
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File
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and name
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it,
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e.g.,
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"CommonCrypto.xcconfig".
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(Don't
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check
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any
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of
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your
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targets
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for
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inclusion.)
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Populate
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it
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with
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the
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following:
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MODULEMAP_FILE[sdk=iphoneos*]
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= \
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$(SRCROOT)/CommonCrypto/iphoneos.modulemap MODULEMAP_FILE[sdk=iphonesimulator*]
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= \
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$(SRCROOT)/CommonCrypto/iphonesimulator.modulemap MODULEMAP_FILE[sdk=macosx*]
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= \
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$(SRCROOT)/CommonCrypto/macosx.modulemap
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Create
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the
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three
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referenced
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module
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map
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files,
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above,
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and
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populate
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them
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with
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the
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following:
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iphoneos.modulemap
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module
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CommonCrypto
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[system]
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{
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header "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/include/CommonCrypto/CommonCrypto.h"
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export * }iphonesimulator.modulemap
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module
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CommonCrypto
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[system]
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{
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header "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/include/CommonCrypto/CommonCrypto.h"
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export * }macosx.modulemap
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module
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CommonCrypto
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[system]
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{
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header "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/CommonCrypto/CommonCrypto.h"
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export * }
(Replace "Xcode.app"
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with
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"Xcode-beta.app"
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if
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you're
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running
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a
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beta
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version.
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Replace
10.
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11with your
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current
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OS
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SDK
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if
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not
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running
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El
...
Capitan.)
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On the Info tab of your project settings, under Configurations, set the Debug and Releaseconfigurations of CommonCrypto to CommonCrypto (referencingCommonCrypto.xcconfig).
On your framework target's Build Phases tab, add the CommonCrypto framework to Target Dependencies. Additionally add libcommonCrypto.dylib to the Link Binary With Librariesbuild phase.
Select CommonCrypto.framework in Products and make sure its Target Membership for your wrapper is set to Optional.
You should now be able to build, run and import CommonCrypto in your wrapper framework.
For an example, see how SQLite.swift uses a dummy sqlite3.framework.