41529 – ebuild command to return endianness of architecture

Bug 41529 - ebuild command to return endianness of architecture

Summary: ebuild command to return endianness of architecture

Status:	RESOLVED INVALID

Alias:	None

Product:	Portage Development
Classification:	Unclassified
Component:	Core - Ebuild Support (show other bugs)
Hardware:	All Linux

Importance:	High enhancement
Assignee:	Portage team

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Depends on:
Blocks:

Reported:	2004-02-13 22:00 UTC by Jeremy Huddleston (RETIRED)
Modified:	2004-02-13 22:05 UTC (History)
CC List:	0 users

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Runtime testing required:	---

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Description Jeremy Huddleston (RETIRED) gentoo-dev

2004-02-13 22:00:09 UTC

It'd be nice to have a command available to ebuild authors which returned the endianness (big or little endian) of the architecture... so we could do something like:

if eisbigendian; then
  CFLAGS="${CFLAGS} -DBIGENDIAN"
fi

or similar rather than doing a switch statement and trying to remember which arch is which endianness... 

Reproducible: Always
Steps to Reproduce:
1.
2.
3.

Comment 1 SpanKY gentoo-dev

2004-02-13 22:05:33 UTC

if your only need is for .c code then

#include <sys/types.h>
#if BYTE_ORDER == LITTLE_ENDIAN
#warn little !
#endif
#if BYTE_ORDER == BIG_ENDIAN
#warn big !
#endif