Hi Toni, You're not supposed to build the system module package (because there is nothing to build). Tag and add this package as a dependency and then try to import the `TestPkg` module that you defined in the modulemap. The error here is bogus and is tracked by https://bugs.swift.org/browse/SR-5383
On Tue, Oct 3, 2017 at 12:32 AM, Toni Suter via swift-users < swift-users@swift.org> wrote: > Hi, > > I am trying to create a Swift Package that wraps the ImageMagick C API. So > I installed ImageMagick using MacPorts and > I was then able to build the sample program with the following commands: > > export PKG_CONFIG_PATH=/opt/local/lib/pkgconfig > cc main.c `pkg-config --cflags --libs MagickWand` > > Then I created a package with the command "swift package init > --type=system-module" and I modified Package.swift to look > like this: > > // swift-tools-version:4.0 > > import PackageDescription > > let package = Package( > name: "TestPkg", > pkgConfig: "MagickWand" > ) > > and I modified module.modulemap to the following: > > module TestPkg [system] { > header "/opt/local/include/ImageMagick-6/wand/MagickWand.h" > link "MagickWand-6.Q16" > link "MagickCore-6.Q16" > export * > } > > Now when I run "swift build", I get the following error message: > > <unknown>:0: error: unexpected 'commands' value (expected map) > <unknown>:0: error: unable to load build file > error: terminated(1): /Library/Developer/Toolchains/swift-4.0-DEVELOPMENT- > SNAPSHOT-2017-08-27-a.xctoolchain/usr/bin/swift-build-tool -f > /Users/tonisuter/Desktop/TestPkg/.build/debug.yaml main > > Does anybody know how I can fix this error? > > Thanks and best regards > Toni > > _______________________________________________ > swift-users mailing list > swift-users@swift.org > https://lists.swift.org/mailman/listinfo/swift-users > >
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