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-rw-r--r--configure.cmake19
1 files changed, 19 insertions, 0 deletions
diff --git a/configure.cmake b/configure.cmake
index 5efd0f5c14b..1dade02aa32 100644
--- a/configure.cmake
+++ b/configure.cmake
@@ -1058,3 +1058,22 @@ CHECK_STRUCT_HAS_MEMBER("struct dirent" d_ino "dirent.h" STRUCT_DIRENT_HAS_D_IN
CHECK_STRUCT_HAS_MEMBER("struct dirent" d_namlen "dirent.h" STRUCT_DIRENT_HAS_D_NAMLEN)
SET(SPRINTF_RETURNS_INT 1)
CHECK_INCLUDE_FILE(ucontext.h HAVE_UCONTEXT_H)
+
+IF(NOT MSVC)
+ CHECK_C_SOURCE_RUNS(
+ "
+ #define _GNU_SOURCE
+ #include <fcntl.h>
+ #include <linux/falloc.h>
+ int main()
+ {
+ /* Ignore the return value for now. Check if the flags exist.
+ The return value is checked at runtime. */
+ fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
+
+ return(0);
+ }"
+ HAVE_FALLOC_PUNCH_HOLE_AND_KEEP_SIZE
+ )
+ENDIF()
+