7.39 --depend_system_headers, --no_depend_system_headers

Enables and disables the output of system include dependency lines when generating makefile dependency information using either the -M option or the --md option.

Default

The default is --depend_system_headers.

Examples

/* hello.c */
#include <stdio.h>
int main(void)
{
    printf("Hello, world!\n");
    return 0;
}
Compiling this code with the option -M produces:
__image.axf: hello.c
__image.axf: ...\include\...\stdio.h
Compiling this code with the options -M --no_depend_system_headers produces:
__image.axf: hello.c
Related reference
7.35 --depend=filename
7.37 --depend_format=string
7.40 --depend_target=target
7.74 --ignore_missing_headers
7.101 -M
7.102 --md
7.125 --phony_targets
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