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configure.ac: Use Autoconf quadrigraphs for character set in AS_CASE

The use of square brackets for a character set collides with the use
of square brackets for m4 quote characters, so use the other quoting
mechanism that Autoconf provides, by escaping `[` as `@<:@` and so on.

Signed-off-by: Simon McVittie <[email protected]>
Simon McVittie 3 years ago
parent
c244bbc515
commit
b03e08f376
1 changed files with 1 additions and 1 deletions
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  1. 1 1
      configure.ac

+ 1 - 1
configure.ac
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@@ -18,7 +18,7 @@ SDL_VERSION=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION.$SDL_MICRO_VERSION
 
 
 
 SDL_BINARY_AGE=`expr $SDL_MINOR_VERSION \* 100 + $SDL_MICRO_VERSION`
 
 SDL_BINARY_AGE=`expr $SDL_MINOR_VERSION \* 100 + $SDL_MICRO_VERSION`
 
 AS_CASE(["$SDL_MINOR_VERSION"],
 
 AS_CASE(["$SDL_MINOR_VERSION"],
 
-  [*[02468]],
 
+  [*@<:@02468@:>@],
 
     dnl Stable branch, 2.24.1 -> libSDL2-2.0.so.0.2400.1
 
     dnl Stable branch, 2.24.1 -> libSDL2-2.0.so.0.2400.1
 
     [SDL_INTERFACE_AGE="$SDL_MICRO_VERSION"],
 
     [SDL_INTERFACE_AGE="$SDL_MICRO_VERSION"],
 
   [*],
 
   [*],