| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | feature_test_macros | 7 | 526 |
| centos | feature_test_macros | 7 | 291 |
| php | feature_test_macros | 7 | 248 |
| posix | feature_test_macros | 7 | 246 |
| debian | feature_test_macros | 7 | 245 |
| xfree86 | feature_test_macros | 7 | 243 |
| opendarwin | feature_test_macros | 7 | 243 |
| x11r4 | feature_test_macros | 7 | 229 |
| v7 | feature_test_macros | 7 | 223 |
| suse | feature_test_macros | 7 | 204 |
| freebsd | feature_test_macros | 7 | 194 |
| minix | feature_test_macros | 7 | 191 |
| osx | feature_test_macros | 7 | 190 |
| bsd | feature_test_macros | 7 | 185 |
| plan9 | feature_test_macros | 7 | 178 |
| mojave | feature_test_macros | 7 | 177 |
| redhat | feature_test_macros | 7 | 175 |
| sunos | feature_test_macros | 7 | 168 |
| ultrix | feature_test_macros | 7 | 167 |
| hpux | feature_test_macros | 7 | 161 |
| opensolaris | feature_test_macros | 7 | 140 |
| osf1 | feature_test_macros | 7 | 135 |
| netbsd | feature_test_macros | 7 | 125 |