Bug 85955 – undefined flag for mremap(2) in sys/mman.h

Bug 85955 - undefined flag for mremap(2) in sys/mman.h

Summary:	undefined flag for mremap(2) in sys/mman.h

Status:	CLOSED NOTABUG

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	glibc (Show other bugs)
Sub Component:
Version:	7.3
Hardware:	i386 Linux

Priority	medium Severity medium
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Assigned To:	Jakub Jelinek
QA Contact:	Brian Brock
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Reported:	2003-03-11 09:24 EST by Daniel J Blueman
Modified:	2007-04-18 12:51 EDT (History)
CC List:	0 users

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Doc Type:	Bug Fix
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Last Closed:	2003-03-11 09:37:04 EST
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Description Daniel J Blueman 2003-03-11 09:24:44 EST

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 09:37:04 EST

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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