Bug 85955 - undefined flag for mremap(2) in sys/mman.h
undefined flag for mremap(2) in sys/mman.h
Status: CLOSED NOTABUG
Product: Red Hat Linux
Classification: Retired
Component: glibc (Show other bugs)
7.3
i386 Linux
medium Severity medium
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Assigned To: Jakub Jelinek
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)
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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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