Fixed bug #732

If no -L is present in the library spec, try /usr/lib

--HG--
branch : SDL-1.2
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/branches/SDL-1.2%403888

configure.in

@@ -360,6 +360,9 @@ AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[de
                 fi
             fi
             alsa_lib_spec=`echo $ALSA_LIBS | sed 's/.*-L\([[^ ]]*\).*/\1\/libasound.so.*/'`
+            if [ x$alsa_lib_spec = x ]; then
+                alsa_lib_spec="/usr/$base_libdir/libasound.so.*"
+            fi
             alsa_lib=`ls -- $alsa_lib_spec | sed 's/.*\/\(.*\)/\1/; q'`
             echo "-- $alsa_lib_spec -> $alsa_lib"
 
@@ -456,6 +459,9 @@ AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=y
 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
                           , enable_esd_shared=yes)
             esd_lib_spec=`echo $ESD_LIBS | sed 's/.*-L\([[^ ]]*\).*/\1\/libesd.so.*/'`
+            if [ x$esd_lib_spec = x ]; then
+                esd_lib_spec="/usr/$base_libdir/libesd.so.*"
+            fi
             esd_lib=`ls -- $esd_lib_spec | sed 's/.*\/\(.*\)/\1/; q'`
             echo "-- $esd_lib_spec -> $esd_lib"
 
@@ -513,6 +519,9 @@ AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio suppor
                 fi
             fi
             pulse_lib_spec=`echo $PULSE_LIBS | sed 's/.*-L\([[^ ]]*\).*/\1\/libpulse-simple.so.*/'`
+            if [ x$pulse_lib_spec = x ]; then
+                pulse_lib_spec="/usr/$base_libdir/libpulse-simple.so.*"
+            fi
             pulse_lib=`ls -- $pulse_lib_spec | sed 's/.*\/\(.*\)/\1/; q'`
             echo "-- $pulse_lib_spec -> $pulse_lib"
 
@@ -633,6 +642,9 @@ AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[defa
                 fi
             fi
             nas_lib_spec=`echo $NAS_LIBS | sed 's/.*-L\([[^ ]]*\).*/\1\/libaudio.so.*/'`
+            if [ x$nas_lib_spec = x ]; then
+                nas_lib_spec="/usr/$base_libdir/libaudio.so.*"
+            fi
             nas_lib=`ls -- $nas_lib_spec | sed 's/.*\/\(.*\)/\1/; q'`
             echo "-- $nas_lib_spec -> $nas_lib"