--- a/configure.ac
+++ b/configure.ac
@@ -27,14 +27,15 @@
 	DEBUG_CFLAGS="-g -O0"
 fi
 AC_SUBST(DEBUG_CFLAGS)
+PKG_PROG_PKG_CONFIG
 
 PKG_CHECK_MODULES([PIDGIN],[pidgin >= 2.0.0],,AC_MSG_ERROR([
 *** Pidgin 2.0+ is required to build pidgin-musictracker
 *** Please make sure you have the Pidgin development files installed.
 *** The latest version of Pidgin is always available at http://pidgin.im/]))
 AC_SUBST(PIDGIN_CFLAGS)
-PIDGIN_LIBDIR=`pkg-config --variable=libdir pidgin`
-PIDGIN_DATADIR=`pkg-config --variable=datadir pidgin`
+PIDGIN_LIBDIR=`$PKG_CONFIG --variable=libdir pidgin`
+PIDGIN_DATADIR=`$PKG_CONFIG --variable=datadir pidgin`
 AC_SUBST(PIDGIN_LIBDIR)
 AC_SUBST(PIDGIN_DATADIR)
 
@@ -96,8 +97,6 @@
 AC_SUBST(PCRE_LIBS)
 AC_SUBST(PCRE_CFLAGS)
 
-AC_PREFIX_DEFAULT(`pkg-config --variable=prefix pidgin`)
-
 AC_CONFIG_FILES([ po/Makefile.in
    Makefile
    README