X-Git-Url: https://git.exim.org/users/jgh/exim.git/blobdiff_plain/9d26b8c05f5308b474b560fa2a8a1046e2f5c1b6..7006ee24ecfd9d8f405f70d38cc36bdd91f8de87:/src/OS/os.h-Linux?ds=inline diff --git a/src/OS/os.h-Linux b/src/OS/os.h-Linux index 5186ec89d..cc1cef99b 100644 --- a/src/OS/os.h-Linux +++ b/src/OS/os.h-Linux @@ -1,8 +1,8 @@ /* Exim: OS-specific C header file for Linux */ -/* Some weird variants may require invocation with C99 and features.h -inclusion to build, with the 64-bit arithmetic. Make compiler selection -their problem, but build anyway. */ +/* 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 @@ -44,9 +44,6 @@ storage" as quickly as Exim thinks they are. */ #define NEED_SYNC_DIRECTORY -/* Other OS have "const" in here */ -#define ICONV_ARG2_TYPE char ** - #define os_find_running_interfaces os_find_running_interfaces_linux /* Need a prototype for the Linux-specific function. The structure hasn't @@ -57,4 +54,26 @@ 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 + +#if _POSIX_C_SOURCE >= 200809L || _ATFILE_SOUCE +# define EXIM_HAVE_OPENAT +#endif + +#include /* for TCP_FASTOPEN */ +#include /* for MSG_FASTOPEN */ +#if defined(TCP_FASTOPEN) && !defined(MSG_FASTOPEN) +# define MSG_FASTOPEN 0x20000000 +#endif + + /* End */