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ev: improve feature detection on linux

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This commit is contained in:
Ben Noordhuis 2011-08-30 12:49:48 +02:00
parent 2af955dbf4
commit 0ba44cfd4e
1 changed files with 24 additions and 13 deletions
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37
src/ev/config_linux.h
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@ -2,12 +2,7 @@
/* config.h.in. Generated from configure.ac by autoheader. */
#include <linux/version.h>
#define LINUX_VERSION_CODE_FOR(major, minor, patch) \
(((major & 255) << 16) | ((minor & 255) << 8) | (patch & 255))
#define LINUX_VERSION_AT_LEAST(major, minor, patch) \
(LINUX_VERSION_CODE >= LINUX_VERSION_CODE_FOR(major, minor, patch))
#include <features.h>
/* Define to 1 if you have the `clock_gettime' function. */
/* #undef HAVE_CLOCK_GETTIME */
@ -18,14 +13,26 @@
/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H 1
/* Define to 1 if you have the `epoll_ctl' function. */
/* epoll_ctl(2) is available if kernel >= 2.6.9 and glibc >= 2.4 */
#if LINUX_VERSION_CODE >= 0x020609 && __GLIBC_PREREQ(2, 4)
#define HAVE_EPOLL_CTL 1
#else
#define HAVE_EPOLL_CTL 0
#endif
/* Define to 1 if you have the `eventfd' function. */
#define HAVE_EVENTFD LINUX_VERSION_AT_LEAST(2, 6, 22)
/* eventfd(2) is available if kernel >= 2.6.22 and glibc >= 2.8 */
#if LINUX_VERSION_CODE >= 0x020616 && __GLIBC_PREREQ(2, 8)
#define HAVE_EVENTFD 1
#else
#define HAVE_EVENTFD 0
#endif
/* Define to 1 if you have the `inotify_init' function. */
#define HAVE_INOTIFY_INIT LINUX_VERSION_AT_LEAST(2, 6, 13)
/* inotify_init(2) is available if kernel >= 2.6.13 and glibc >= 2.4 */
#if LINUX_VERSION_CODE >= 0x02060d && __GLIBC_PREREQ(2, 4)
#define HAVE_INOTIFY_INIT 1
#else
#define HAVE_INOTIFY_INIT 0
#endif
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
@ -60,8 +67,12 @@
/* Define to 1 if you have the `select' function. */
#define HAVE_SELECT 1
/* Define to 1 if you have the `signalfd' function. */
#define HAVE_SIGNALFD LINUX_VERSION_AT_LEAST(2, 6, 22)
/* signalfd(2) is available if kernel >= 2.6.22 and glibc >= 2.8 */
#if LINUX_VERSION_CODE >= 0x020616 && __GLIBC_PREREQ(2, 8)
#define HAVE_SIGNALFD 1
#else
#define HAVE_SIGNALFD 0
#endif
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1