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eio: fix HAVE_SYNC_FILE_RANGE heuristic on linux

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This commit is contained in:
Ben Noordhuis 2011-08-14 02:55:37 +02:00
parent da4e864684
commit 5899192807
1 changed files with 5 additions and 15 deletions
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20
src/eio/config_linux.h
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@ -2,17 +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))
#ifdef __GLIBC__
#define GLIBC_VERSION_AT_LEAST(major, minor) \
(__GLIBC__ > major || (__GLIBC__ == major && __GLIBC_MINOR__ >= minor))
#endif
#include <features.h>
/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H 1
@ -53,11 +43,11 @@
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H 1
/* sync_file_range(2) is available */
#ifdef __GLIBC__
#define HAVE_SYNC_FILE_RANGE (LINUX_VERSION_AT_LEAST(2, 6, 17) && GLIBC_VERSION_AT_LEAST(2, 6))
/* sync_file_range(2) is available if kernel >= 2.6.17 and glibc >= 2.6 */
#if LINUX_VERSION_CODE >= 0x020611 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 6
#define HAVE_SYNC_FILE_RANGE 1
#else
#define HAVE_SYNC_FILE_RANGE LINUX_VERSION_AT_LEAST(2, 6, 17)
#define HAVE_SYNC_FILE_RANGE 0
#endif
/* Define to 1 if you have the <sys/stat.h> header file. */