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Bug 85955 - undefined flag for mremap(2) in sys/mman.h
Summary: undefined flag for mremap(2) in sys/mman.h
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: glibc
Version: 7.3
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Jakub Jelinek
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2003-03-11 14:24 UTC by Daniel J Blueman
Modified: 2016-11-24 14:55 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2003-03-11 14:37:04 UTC

Attachments (Terms of Use)

Description Daniel J Blueman 2003-03-11 14:24:44 UTC
The man page for mremap(2) says to include these header files:
       #include <unistd.h>
       #include <sys/mman.h>

The flags argument can take the flag 'MREMAP_MAYMOVE' which is not defined in 
either of those files, but is in linux/mman.h.

See mremap(2) and grep /usr/include/sys/mman.h for MREMAP_MAYMOVE

Comment 1 Jakub Jelinek 2003-03-11 14:37:04 UTC
MREMAP_MAYMOVE is a GNU extension, so you need to -D_GNU_SOURCE to get it,
otherwise it would break namespace of various standards.
See info libc on Feature Set Macros.

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