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Fix audiofile detection
https://bugs.gentoo.org/show_bug.cgi?id=415981

Index: rezound-0.12.3beta/config/m4/audiofile.m4
===================================================================
--- rezound-0.12.3beta.orig/config/m4/audiofile.m4
+++ rezound-0.12.3beta/config/m4/audiofile.m4
@@ -15,108 +15,11 @@ dnl Get compiler flags and libraries fro
 dnl
 AC_ARG_WITH(audiofile-prefix,AC_HELP_STRING([--with-audiofile-prefix=PFX],[Prefix where Audio File Library is installed (optional)]), audiofile_prefix="$withval", audiofile_prefix="")
 AC_ARG_WITH(audiofile-exec-prefix,AC_HELP_STRING([--with-audiofile-exec-prefix=PFX],[Exec prefix where Audio File Library is installed (optional)]), audiofile_exec_prefix="$withval", audiofile_exec_prefix="")
-AC_ARG_ENABLE(audiofiletest,AC_HELP_STRING([--disable-audiofiletest],[Do not try to compile and run a test Audio File Library program]), , enable_audiofiletest=yes)
 
-  if test x$audiofile_exec_prefix != x ; then
-     audiofile_args="$audiofile_args --exec-prefix=$audiofile_exec_prefix"
-     if test x${AUDIOFILE_CONFIG+set} != xset ; then
-        AUDIOFILE_CONFIG=$audiofile_exec_prefix/bin/audiofile-config
-     fi
-  fi
-  if test x$audiofile_prefix != x ; then
-     audiofile_args="$audiofile_args --prefix=$audiofile_prefix"
-     if test x${AUDIOFILE_CONFIG+set} != xset ; then
-        AUDIOFILE_CONFIG=$audiofile_prefix/bin/audiofile-config
-     fi
-  fi
-
-  AC_PATH_PROG(AUDIOFILE_CONFIG, audiofile-config, no)
   min_audiofile_version=ifelse([$1], ,0.2.5,$1)
   AC_MSG_CHECKING(for Audio File Library - version >= $min_audiofile_version)
   no_audiofile=""
-  if test "$AUDIOFILE_CONFIG" = "no" ; then
-    no_audiofile=yes
-  else
-    AUDIOFILE_LIBS=`$AUDIOFILE_CONFIG $audiofileconf_args --libs`
-    AUDIOFILE_CFLAGS=`$AUDIOFILE_CONFIG $audiofileconf_args --cflags`
-    audiofile_major_version=`$AUDIOFILE_CONFIG $audiofile_args --version | \
-           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
-    audiofile_minor_version=`$AUDIOFILE_CONFIG $audiofile_args --version | \
-           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
-    audiofile_micro_version=`$AUDIOFILE_CONFIG $audiofile_config_args --version | \
-           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
-    if test "x$enable_audiofiletest" = "xyes" ; then
-      AC_LANG_SAVE
-      AC_LANG_C
-      ac_save_CFLAGS="$CFLAGS"
-      ac_save_LIBS="$LIBS"
-      CFLAGS="$CFLAGS $AUDIOFILE_CFLAGS"
-      LIBS="$LIBS $AUDIOFILE_LIBS"
-dnl
-dnl Now check if the installed Audio File Library is sufficiently new. 
-dnl (Also checks the sanity of the results of audiofile-config to some extent.)
-dnl
-      rm -f conf.audiofiletest
-      AC_TRY_RUN([
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <audiofile.h>
-
-char*
-my_strdup (char *str)
-{
-  char *new_str;
-  
-  if (str)
-    {
-      new_str = malloc ((strlen (str) + 1) * sizeof(char));
-      strcpy (new_str, str);
-    }
-  else
-    new_str = NULL;
-  
-  return new_str;
-}
-
-int main ()
-{
-  int major, minor, micro;
-  char *tmp_version;
-
-  system ("touch conf.audiofiletest");
-
-  /* HP/UX 9 (%@#!) writes to sscanf strings */
-  tmp_version = my_strdup("$min_audiofile_version");
-  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
-     printf("%s, bad version string\n", "$min_audiofile_version");
-     exit(1);
-   }
-
-   if (($audiofile_major_version > major) ||
-      (($audiofile_major_version == major) && ($audiofile_minor_version > minor)) ||
-      (($audiofile_major_version == major) && ($audiofile_minor_version == minor) && ($audiofile_micro_version >= micro)))
-    {
-      return 0;
-    }
-  else
-    {
-      printf("\n*** 'audiofile-config --version' returned %d.%d.%d, but the minimum version\n", $audiofile_major_version, $audiofile_minor_version, $audiofile_micro_version);
-      printf("*** of the Audio File Library required is %d.%d.%d. If audiofile-config is correct, then it is\n", major, minor, micro);
-      printf("*** best to upgrade to the required version.\n");
-      printf("*** If audiofile-config was wrong, set the environment variable AUDIOFILE_CONFIG\n");
-      printf("*** to point to the correct copy of audiofile-config, and remove the file\n");
-      printf("*** config.cache before re-running configure\n");
-      return 1;
-    }
-}
-
-],, no_audiofile=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
-       CFLAGS="$ac_save_CFLAGS"
-       LIBS="$ac_save_LIBS"
-       AC_LANG_RESTORE
-     fi
-  fi
+  PKG_CHECK_MODULES(AUDIOFILE, audiofile >= $min_audiofile_version,no_audiofile="",no_audiofile=yes)
   if test "x$no_audiofile" = x ; then
      AC_MSG_RESULT(yes)
      ifelse([$2], , :, [$2])