ams-2.1.2-fix-build-system.patch

* Remove extraneous CXXFLAGS
* Missing -ldl for dlsym, dlerror, and dlopen
See also:
  https://bugs.gentoo.org/show_bug.cgi?id=379251
  https://bugs.gentoo.org/show_bug.cgi?id=600642

--- a/configure.ac
+++ b/configure.ac
@@ -3,9 +3,9 @@
 
 AC_PREREQ(2.61)
 AC_INIT(ams, [2.1.2], [alsamodular-devel@lists.sourceforge.net])
-AC_CANONICAL_SYSTEM
+AC_CANONICAL_TARGET
 AC_CONFIG_SRCDIR([src/box.h])
-AC_CONFIG_HEADER([src/config.h])
+AC_CONFIG_HEADERS([src/config.h])
 AM_INIT_AUTOMAKE([dist-bzip2])
 
 # Checks for programs.
@@ -31,46 +31,7 @@
 AC_FUNC_SELECT_ARGTYPES
 AC_FUNC_STAT
 
-dnl set basic compiler flags
-AMS_CORE_CXXFLAGS="-Wall"
-
-dnl set compiler optimization flags
-AC_MSG_CHECKING(which processor class to optimize for)
-case "$target" in
-    i486-*-*)
-         AMS_OPT_CXXFLAGS="-march=i486"
-         AC_MSG_RESULT(i486)
-         ;;
-    i586-*-*)
-         AMS_OPT_CXXFLAGS="-march=pentium"
-         AC_MSG_RESULT(i586)
-         ;;
-    i686-*-*)
-         AMS_OPT_CXXFLAGS="-march=pentiumpro -msse -mfpmath=sse -ffast-math"
-         AC_MSG_RESULT(i686)
-         ;;
-    i786-*-*)
-         AMS_OPT_CXXFLAGS="-march=pentium4 -msse -mfpmath=sse -ffast-math"
-         AC_MSG_RESULT(i786)
-         ;;
-    x86_64-*-*)
-         AMS_OPT_CXXFLAGS="-m64 -msse -mfpmath=sse -ffast-math"
-         AC_MSG_RESULT(x86_64)
-         ;;
-    *)
-         AC_MSG_RESULT(i386)
-         AC_MSG_WARN(This is probably not what you want, use --target)
-         ;;
-esac
-
-if test "x$AMS_OPT_CXXFLAGS" = "x"; then
-    AMS_CXXFLAGS=$AMS_CORE_CXXFLAGS
-else
-    AC_MSG_NOTICE([Compiler optimization... $AMS_OPT_CXXFLAGS])
-    AMS_CXXFLAGS="$AMS_CORE_CXXFLAGS $AMS_OPT_CXXFLAGS"
-fi
-AC_SUBST(AMS_CXXFLAGS)
-
+CXXFLAGS="${CXXFLAGS} -Wall"
 
 # Checks for libraries.
 AC_CHECK_LIB([asound], [snd_pcm_open], ,
@@ -81,8 +42,12 @@
              [AC_MSG_ERROR(pthread is required)])
 AC_CHECK_LIB([m], [roundf], ,
              [AC_MSG_ERROR([required libm missing])])
-AC_CHECK_LIB([dl], [dlopen], ,
-             [AC_MSG_ERROR(libdl is required)])
+dnl The dlopen() function is in the C library for *BSD and in
+dnl libdl on GLIBC-based systems
+AC_SEARCH_LIBS([dlopen], [dl dld], [], [
+             AC_MSG_ERROR([unable to find the dlopen() function])
+])
+
 dnl for vocoder module
 AC_CHECK_LIB([fftw3], [fftw_execute], ,
              [AC_MSG_ERROR(libfftw3 is required)])
@@ -111,7 +76,7 @@
 fi
 
 dnl option to enable Qt5 instead of default Qt4 library 
-AC_ARG_ENABLE(qt5, AC_HELP_STRING([--enable-qt5],
+AC_ARG_ENABLE(qt5, AS_HELP_STRING([--enable-qt5],
                           [enable Qt5 instead of Qt4 library]),,
                           enable_qt4=yes)
 AS_IF([test x$enable_qt4 = xyes],
@@ -215,7 +180,7 @@
 
 # Check for ladspa plugins path
 AC_ARG_WITH(ladspa-path,
-  [AC_HELP_STRING([--with-ladspa-path=DIR],
+  [AS_HELP_STRING([--with-ladspa-path=DIR],
     [directory for ladspa plugins])],
   [ if test "x$withval" != "x" ; then
      LADSPA_PATH="$withval"
@@ -250,14 +215,6 @@
     if test "$have_liblo" = "yes"; then
         AC_DEFINE(NSM_SUPPORT, 1,
                   [Define to enable NSM support])
-        LIBSsave=$LIBS
-        CFLAGSsave=$CFLAGS
-        CFLAGS=$LIBLO_CFLAGS
-        LIBS=$LIBLO_LIBS
-        AC_SUBST(LIBLO_CFLAGS)
-        AC_SUBST(LIBLO_LIBS)
-        LIBS+=$LIBSsave
-        CFLAGS+=$CFLAGSsave
     fi
 fi
 
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -267,7 +267,7 @@
 # all generated files to be removed by "make clean"
 CLEANFILES = $(nodist_ams_SOURCES) $(translations_DATA)
 
-ams_CXXFLAGS = $(QT_CXXFLAGS) $(AMS_CXXFLAGS)
+ams_CXXFLAGS = $(QT_CXXFLAGS)
 DEFS = -D_REENTRANT -DLADSPA_PATH=\"$(LADSPA_PATH)\" -DTRANSLATIONSDIR=\"$(translationsdir)\" -DDEMOFILEPATH=\"$(pkgdatadir)/demos\" -DINSTRUMENTFILEPATH=\"$(pkgdatadir)/instruments\" @DEFS@
 
 # rule for moc-file generation