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Fix cross compilation 

This patch enhances the algorithm which finds the correct settings for SDL.
For cross compilations (when cross_prefix is set), it looks for sdl-config
with cross prefix. Here is the complete search order:

$(cross_prefix}pkg-config              (old, only used for cross compilation)
${cross_prefix}sdl_config              (new, only used for cross compilation)
pkg-config                             (old, needs PATH)
sdl-config                             (old, needs PATH)

Cross SDL packages (or the user) now can simply set a link (for example
/usr/bin/i586-mingw32msvc-sdl-config -> /usr/i586-mingw32msvc/bin/sdl-config)
which allows cross compilations without PATH modifications.

Without the patch, configure and make (which calls configure) typically
need a non-standard PATH. Failing to set this special PATH results in
broken builds.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Stefan Weil 2010-04-11 18:44:18 +02:00 committed by Aurelien Jarno
parent d590081380
commit fec0e3e8a7
1 changed files with 11 additions and 1 deletions
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12
configure vendored
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@ -1064,7 +1064,17 @@ fi
##########################################
# SDL probe
if $pkgconfig sdl --modversion >/dev/null 2>&1; then
# Look for sdl configuration program (pkg-config or sdl-config).
# Prefer variant with cross prefix if cross compiling,
# and favour pkg-config with sdl over sdl-config.
if test -n "$cross_prefix" -a $pkgconfig != pkg-config && \
$pkgconfig sdl --modversion >/dev/null 2>&1; then
sdlconfig="$pkgconfig sdl"
_sdlversion=`$sdlconfig --modversion 2>/dev/null | sed 's/[^0-9]//g'`
elif test -n "$cross_prefix" && has ${cross_prefix}sdl-config; then
sdlconfig="${cross_prefix}sdl-config"
_sdlversion=`$sdlconfig --version | sed 's/[^0-9]//g'`
elif $pkgconfig sdl --modversion >/dev/null 2>&1; then
sdlconfig="$pkgconfig sdl"
_sdlversion=`$sdlconfig --modversion 2>/dev/null | sed 's/[^0-9]//g'`
elif has sdl-config; then