| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | feature_test_macros | 7 | 1,057 |
| centos | feature_test_macros | 7 | 681 |
| php | feature_test_macros | 7 | 673 |
| debian | feature_test_macros | 7 | 627 |
| posix | feature_test_macros | 7 | 601 |
| v7 | feature_test_macros | 7 | 567 |
| xfree86 | feature_test_macros | 7 | 539 |
| suse | feature_test_macros | 7 | 537 |
| x11r4 | feature_test_macros | 7 | 512 |
| opendarwin | feature_test_macros | 7 | 507 |
| osx | feature_test_macros | 7 | 494 |
| minix | feature_test_macros | 7 | 473 |
| plan9 | feature_test_macros | 7 | 465 |
| hpux | feature_test_macros | 7 | 434 |
| bsd | feature_test_macros | 7 | 418 |
| mojave | feature_test_macros | 7 | 418 |
| freebsd | feature_test_macros | 7 | 413 |
| redhat | feature_test_macros | 7 | 412 |
| sunos | feature_test_macros | 7 | 378 |
| opensolaris | feature_test_macros | 7 | 373 |
| ultrix | feature_test_macros | 7 | 365 |
| osf1 | feature_test_macros | 7 | 365 |
| netbsd | feature_test_macros | 7 | 314 |