Add LIBJPEG_TURBO_VERSION macro for checking the libjpeg-turbo version at compile time

git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@731 632fc199-4ca6-4c93-a231-07263d6284db

ChangeLog.txt

@@ -11,6 +11,9 @@ This was more of an annoyance than an actual bug, since it did not cause any
 actual run-time problems, but the issue showed up when running libjpeg-turbo in
 valgrind.  See http://crbug.com/72399 for more information.
 
+[3] Added a compile-time macro (LIBJPEG_TURBO_VERSION) that can be used to
+check the version of libjpeg-turbo against which an application was compiled.
+
 
 1.1.90 (1.2 beta1)
 ==================

configure.ac

@@ -140,6 +140,8 @@ AC_MSG_RESULT([$SO_MAJOR_VERSION:$SO_MINOR_VERSION])
 AC_SUBST(SO_MAJOR_VERSION)
 AC_SUBST(SO_MINOR_VERSION)
 
+AC_DEFINE_UNQUOTED(LIBJPEG_TURBO_VERSION, [$VERSION], [libjpeg-turbo version])
+
 VERSION_SCRIPT=yes
 AC_ARG_ENABLE([ld-version-script],
   AS_HELP_STRING([--disable-ld-version-script],

jconfig.h.in

@@ -3,6 +3,9 @@
  */
 #define JPEG_LIB_VERSION  62	/* Version 6b */
 
+/* libjpeg-turbo version */
+#define LIBJPEG_TURBO_VERSION 0
+
 /* Support arithmetic encoding */
 #undef C_ARITH_CODING_SUPPORTED
 

win/jconfig.h.in

@@ -2,6 +2,7 @@
 /* see jconfig.txt for explanations */
 
 #define JPEG_LIB_VERSION @JPEG_LIB_VERSION@
+#define LIBJPEG_TURBO_VERSION @VERSION@
 #cmakedefine C_ARITH_CODING_SUPPORTED
 #cmakedefine D_ARITH_CODING_SUPPORTED