| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | feature_test_macros | 7 | 258 |
| centos | feature_test_macros | 7 | 125 |
| debian | feature_test_macros | 7 | 104 |
| opendarwin | feature_test_macros | 7 | 100 |
| suse | feature_test_macros | 7 | 94 |
| x11r4 | feature_test_macros | 7 | 90 |
| xfree86 | feature_test_macros | 7 | 84 |
| freebsd | feature_test_macros | 7 | 77 |
| v7 | feature_test_macros | 7 | 74 |
| php | feature_test_macros | 7 | 73 |
| bsd | feature_test_macros | 7 | 70 |
| osx | feature_test_macros | 7 | 70 |
| minix | feature_test_macros | 7 | 68 |
| hpux | feature_test_macros | 7 | 66 |
| ultrix | feature_test_macros | 7 | 63 |
| posix | feature_test_macros | 7 | 61 |
| redhat | feature_test_macros | 7 | 61 |
| mojave | feature_test_macros | 7 | 59 |
| plan9 | feature_test_macros | 7 | 59 |
| sunos | feature_test_macros | 7 | 56 |
| osf1 | feature_test_macros | 7 | 45 |
| opensolaris | feature_test_macros | 7 | 44 |
| netbsd | feature_test_macros | 7 | 20 |