Xcode 10.1: Spurious warning "Missing submodule" when including bsm/audit_kevents.h

Originator:rsfinn
Number:rdar://46873878 Date Originated:2018-12-20
Status:Open Resolved:
Product:Xcode Product Version:10.1 (10B61)
Classification:UI/Usability Reproducible:Always
 
When compiling an Objective-C file that includes or imports the system header file <bsm/audit_kevents.h>, the compiler generates a warning message "Missing submodule 'Darwin.bsm.audit_kevents'" on the line that includes or imports the header. In projects that use the "-Werror" flag, this will prevent the compilation from succeeding, even though the header is included correctly.

Example source file:
✂-----
#import <Foundation/Foundation.h>

#include <bsm/libbsm.h>
#import <bsm/audit_kevents.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        printf("AUE_FORK = %d\n", AUE_FORK);
    }
    return 0;
}
✂-----

This file causes the warning "Missing submodule 'Darwin.bsm.audit_kevents'" for the line "#import <bsm/audit_kevents.h>".

Comments

Workaround: Use "-Wno-incomplete-umbrella"

"Thanks for reporting this issue. While we work on a fix, you can workaround this warning by adding "-Wno-incomplete-umbrella" to "Other C flags" (OTHER_CFLAGS). We are continuing to work on this issue, and will follow up with you again."

By rsfinn at Jan. 8, 2019, 4:46 p.m. (reply...)

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