18 lines
571 B
C
18 lines
571 B
C
#if __FreeBSD__ == 0 /* 1.0 did not define __FreeBSD__ */
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#define __FreeBSD_version 199401
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#elif __FreeBSD__ == 1 /* 1.1 defined it to be 1 */
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#define __FreeBSD_version 199405
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#else /* 2.0 and higher define it to be 2 */
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#include <osreldate.h> /* and this works */
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#endif
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int main(void) {
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extern int getosreldate(void);
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printf("Compilation release date: %d\n", __FreeBSD_version);
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#if __FreeBSD_version >= 199408
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printf("Execution environment release date: %d\n", getosreldate());
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#else
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printf("Execution environment release date: can't tell\n");
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#endif
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}
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