diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/configure.in b/configure.in index e6f379c23d..d4ea6c6d15 100644 --- a/configure.in +++ b/configure.in @@ -1116,7 +1116,10 @@ AC_CACHE_CHECK([whether we have extern char **environ already declared], /* We define _GNU_SOURCE here because it is also defined in compat.c. * Without it environ doesn't get declared. */ #define _GNU_SOURCE +#ifdef HAVE_UNISTD_H #include <unistd.h> +#endif +#include <stdlib.h> int main(int c, char **v) { char **t = environ; }])], tor_cv_have_environ_declared=yes, tor_cv_have_environ_declared=no)) |