SDL-mirror/build-scripts/updaterev.sh
Sam Lantinga e0bf2dc643 Made it possible to build SDL from a fresh checkout without any additional steps.
The trick is that if you're using configure and you don't want to have SDL_config.h and SDL_revision.h to show up as modified, you need to configure and build from a separate directory.

You also need to include SDL_revision.h directly if you want to use the SDL_REVISION constant, as a side effect of these changes.

--HG--
rename : include/SDL_config.h.default => include/SDL_config.h
2011-02-16 02:37:09 -08:00

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#!/bin/sh
#
# Generate a header file with the current source revision
outdir=`pwd`
cd `dirname $0`
srcdir=..
header=$outdir/include/SDL_revision.h
rev=`sh showrev.sh`
if [ "$rev" != "" -a "$rev" != "hg-0:baadf00d" ]; then
echo "#define SDL_REVISION \"$rev\"" >$header.new
if diff $header $header.new >/dev/null 2>&1; then
rm $header.new
else
mv $header.new $header
fi
fi