Add a test to configure.ac to ensure RtAudio.h defines the same version number.

diff --git a/configure.ac b/configure.ac
index dc2ad0aa3cd117b4607bfcb940be075c586801e7..c2531148c15d5de9773b93afa04435a7c4a3fbcb 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -33,6 +33,15 @@ fi
 AC_HEADER_STDC
 AC_CHECK_HEADERS(sys/ioctl.h unistd.h)
 
+# Check version number coherency between RtAudio.h and configure.ac
+AC_MSG_CHECKING([that version numbers are coherent])
+AC_RUN_IFELSE(
+   [AC_LANG_PROGRAM([#include <string.h>
+                     `grep "define RTAUDIO_VERSION" $srcdir/RtAudio.h`],
+                    [return strcmp(RTAUDIO_VERSION, PACKAGE_VERSION);])],
+   [AC_MSG_RESULT([yes])],
+   [AC_MSG_FAILURE([testing RTAUDIO_VERSION==PACKAGE_VERSION failed, check that RtAudio.h defines RTAUDIO_VERSION as "$PACKAGE_VERSION" or that the first line of configure.ac has been updated.])])
+
 # Check for debug
 AC_MSG_CHECKING(whether to compile debug version)
 AC_ARG_ENABLE(debug,
@@ -40,7 +49,6 @@ AC_ARG_ENABLE(debug,
   [AC_SUBST( cppflag, [-D__RTAUDIO_DEBUG__] ) AC_SUBST( cxxflag, [-g] ) AC_SUBST( object_path, [Debug] ) AC_MSG_RESULT(yes)],
   [AC_SUBST( cppflag, [] ) AC_SUBST( cxxflag, [-O2] ) AC_SUBST( object_path, [Release] ) AC_MSG_RESULT(no)])
 
-
 # Checks for functions
 AC_CHECK_FUNC(gettimeofday, [cppflag="$cppflag -DHAVE_GETTIMEOFDAY"], )