X-Git-Url: https://git.exim.org/users/heiko/exim.git/blobdiff_plain/3634fc257bd0667daef14d72005cd87c735bbb24..af548e04066be00accef8adda14086b893f41128:/src/OS/os.h-Linux diff --git a/src/OS/os.h-Linux b/src/OS/os.h-Linux index eb7036d0f..3fead17d7 100644 --- a/src/OS/os.h-Linux +++ b/src/OS/os.h-Linux @@ -1,5 +1,12 @@ /* Exim: OS-specific C header file for Linux */ +/* Some old systems we've received bug-reports for have a which +does not pull in . Best to just pull it in now and have done +with the issue. */ + +#include + + #define CRYPT_H #define GLIBC_IP_OPTIONS #define HAVE_MMAP @@ -50,4 +57,16 @@ extern struct ip_address_item *os_find_running_interfaces_linux(void); #endif /* __linux__ */ +/* Some folks running "unusual" setups with very old libc environments have +found that _GNU_SOURCE=1 before is not sufficient to define some +constants needed for 64-bit arithmetic. If you encounter build errors based +on LLONG_MIN being undefined and various other escape hatches have not helped, +then change the 0 to 1 in the next block. */ + +#if 0 +# define LLONG_MIN LONG_LONG_MIN +# define LLONG_MAX LONG_LONG_MAX +#endif + + /* End */