projects / bison.git / blame
| Commit | Line | Data |
|---|---|---|
| 1e24cc5b AD |
1 | #serial 2 |
| 2 | ||
| 3 | # Test for the GNU C Library, version 2.1 or newer. | |
| 4 | # From Bruno Haible. | |
| 5 | ||
| 6 | AC_DEFUN([jm_GLIBC21], | |
| 7 | [ | |
| 8 | AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer, | |
| 9 | ac_cv_gnu_library_2_1, | |
| 10 | [AC_EGREP_CPP([Lucky GNU user], | |
| 11 | [ | |
| 12 | #include <features.h> | |
| 13 | #ifdef __GNU_LIBRARY__ | |
| 14 | #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2) | |
| 15 | Lucky GNU user | |
| 16 | #endif | |
| 17 | #endif | |
| 18 | ], | |
| 19 | ac_cv_gnu_library_2_1=yes, | |
| 20 | ac_cv_gnu_library_2_1=no) | |
| 21 | ] | |
| 22 | ) | |
| 23 | AC_SUBST(GLIBC21) | |
| 24 | GLIBC21="$ac_cv_gnu_library_2_1" | |
| 25 | ] | |
| 26 | ) |