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Fixed bug 4544 - SDL2.m4 SDL2.framework patch made it impossible to fail detection

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Stian Skjelstad

check if $sdl_framework is set, before checking if directory exists

Patch that was merged here https://hg.libsdl.org/SDL/rev/ad4968de54ec made it impossible for the SDL2 detection to fail, since one of the if statements fails to check if a variable is set or not.

if test -d $sdl_framework; then

can evaluate to true in some shells. I guess it falls into undefined behaviour when looking at the POSIX standard.
This commit is contained in:
Sam Lantinga 2019-03-16 18:45:10 -07:00
parent 8bc59f87ec
commit 55f18d3625
1 changed files with 1 additions and 1 deletions
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sdl2.m4
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@ -74,7 +74,7 @@ AC_ARG_VAR(SDL2_FRAMEWORK, [Path to SDL2.framework])
done
fi
if test -d $sdl_framework; then
if test x"$sdl_framework" != x && test -d "$sdl_framework"; then
AC_MSG_RESULT($sdl_framework)
sdl_framework_dir=`dirname $sdl_framework`
SDL_CFLAGS="-F$sdl_framework_dir -Wl,-framework,SDL2 -I$sdl_framework/include"