Got the following from solaris help doc:
Generates makefile dependencies like -xM, but excludes /usr/include files.
For example:
more hello.c
#include<stdio.h>
main()
{
(void)printf(“hello\n”);
}
cc– xM hello.c
hello.o: hello.c
hello.o: /usr/include/stdio.h
Compiling with -xM1 does not report header file dependencies:
cc– xM1 hello.c
hello.o: hello.c
--
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