From dc46c78d0ab052228721d795942a4d33ebec6399 Mon Sep 17 00:00:00 2001
From: Tobias Doerffel <tobias.doerffel@gmail.com>
Date: Mon, 16 Jun 2008 10:38:52 +0000
Subject: [PATCH] added libfftw3-detection

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1154 0778d3d1-df1d-0410-868b-ea421aaaa00d
---
 ChangeLog           |  4 ++++
 configure.in        | 52 ++++++++++++++++++++++++++++++++-------------
 plugins/Makefile.am |  6 +++++-
 3 files changed, 46 insertions(+), 16 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index b1261d9e6..5b89072ca 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2008-06-16	Tobias Doerffel	<tobydox/at/users/dot/sourceforge/dot/net>
 
+	* plugins/Makefile.am:
+	* configure.in:
+	added libfftw3-detection
+
 	* plugins/bass_booster/bassbooster_control_dialog.cpp:
 	* plugins/bass_booster/artwork.png:
 	* plugins/peak_controller_effect/peak_controller_effect_control_dialog.cpp:
diff --git a/configure.in b/configure.in
index a550aea3b..7f6f11ce3 100644
--- a/configure.in
+++ b/configure.in
@@ -2,8 +2,8 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.50)
-AC_INIT(lmms, 0.4.0-svn20080613, lmms-devel/at/lists/dot/sf/dot/net)
-AM_INIT_AUTOMAKE(lmms, 0.4.0-svn20080613)
+AC_INIT(lmms, 0.4.0-svn20080616, lmms-devel/at/lists/dot/sf/dot/net)
+AM_INIT_AUTOMAKE(lmms, 0.4.0-svn20080616)
 AX_PREFIX_CONFIG_H([include/lmmsconfig.h])
 
 AM_CONFIG_HEADER(config.h)
@@ -480,6 +480,24 @@ fi
 
 
 
+# check for fftw3-lib
+AC_ARG_WITH(fftw3,
+	AS_HELP_STRING([--without-fftw3],
+			[disable support for FFTW3]), ,
+ 	[ with_fftw3=yes ])
+AH_TEMPLATE(HAVE_FFTW3_H, [Define to 1 if you have the <fftw3.h> header file.])
+if test "x$with_fftw3" = "xyes" ; then
+	AC_CHECK_HEADER(fftw3.h, HAVE_FFTW3_H="true")
+	AC_CHECK_LIB([fftw3], [fftw_execute], HAVE_LIBFFTW3="true", HAVE_FFTW3_H="")
+fi
+if test ! -z "$HAVE_FFTW3_H" ; then
+	AC_DEFINE(HAVE_FFTW3_H)
+fi
+AM_CONDITIONAL(HAVE_LIBFFTW3, test ! -z "$HAVE_FFTW3_H")
+
+
+
+
 # check whether to disable surround-support
 AC_MSG_CHECKING([whether to disable surround-support])
 AH_TEMPLATE(DISABLE_SURROUND, [Define if you want to disable surround-support in LMMS.])
@@ -495,19 +513,6 @@ else
 fi
 
 
-# check whether to enable high-quality sinc-resampling
-AC_MSG_CHECKING([whether to enable high quality sinc-resampling])
-AH_TEMPLATE(HQ_SINC, [Define if you want to enable high quality sinc-resampling.])
-AC_ARG_ENABLE([hqsinc],
-	AS_HELP_STRING([--enable-hqsinc],
-		[enable high quality sinc-resampling]), [HQ_SINC=$enableval])
-if test "x$HQ_SINC" = "xyes" ; then
-	AC_MSG_RESULT(yes)
-	AC_DEFINE(HQ_SINC)
-else
-	AC_MSG_RESULT(no)
-fi
-
 # check whether to disable single-source-compile
 #AC_MSG_CHECKING([whether to enable single-source-compile])
 # AH_TEMPLATE(SINGLE_SOURCE_COMPILE, [Define if you want to enable single-source-compile.])
@@ -971,6 +976,23 @@ fi
 
 
 
+if test -z "$HAVE_FFTW3_H" ; then
+	echo " ========================"
+	echo " ===  LMMS - WARNING  ======================================================="
+	echo " ========================"
+	echo " ="
+	echo " = You don't seem to have FFTW3-library installed and/or FFTW3-development-"
+	echo " = package (Debian/Ubuntu: libfftw3-dev) is missing. Without this package, the"
+	echo " = Spectrum Analyzer plugin won't be built."
+	echo " = Consider installing the missing packages for using the full power of LMMS."
+	echo " ="
+	with_warnings="true"
+else
+	PLUGINS_TO_BUILD="$PLUGINS_TO_BUILD\n\t\* Spectrum Analyzer plugin"
+fi
+
+
+
 if test ! -z "$WINECXX" ; then
 	PLUGINS_TO_BUILD="$PLUGINS_TO_BUILD\n\t\* LMMS VST Support Layer (LVSL) for built-in VST-plugin usage"
 else
diff --git a/plugins/Makefile.am b/plugins/Makefile.am
index aaff43a88..e78f1ac0f 100644
--- a/plugins/Makefile.am
+++ b/plugins/Makefile.am
@@ -14,6 +14,10 @@ if FLUIDSYNTH_SUPPORT
 SF2PLAYER_DIR=sf2_player
 endif
 
+if HAVE_LIBFFTW3
+SPECTRUMANALYZER_DIR=spectrum_analyzer
+endif
+
 SUBDIRS =			\
 	audio_file_processor	\
 	bass_booster		\
@@ -30,7 +34,7 @@ SUBDIRS =			\
 	peak_controller_effect	\
 	$(SF2PLAYER_DIR)	\
 	$(SINGERBOT_DIR)	\
-	spectrum_analyzer	\
+	$(SPECTRUMANALYZER_DIR)	\
 	stereo_enhancer		\
 	stereo_matrix		\
 	$(STK_DIR)		\