spandsp3: backport from master

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>

libs/spandsp3/Makefile

@@ -0,0 +1,74 @@
+#
+# Copyright (C) 2020 Sebastian Kemper <sebastian_ml@gmx.net>
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=spandsp3
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=https://github.com/freeswitch/spandsp.git
+PKG_SOURCE_DATE=2020-08-14
+PKG_SOURCE_VERSION:=6ec23e5a7e411a22d59e5678d12c4d2942c4a4b6
+PKG_RELEASE:=1
+PKG_MIRROR_HASH:=fcfa13576a25ff27e3746c3db30de89d2afceb963072b352a34e7a4a9f492ae5
+
+PKG_INSTALL:=1
+PKG_BUILD_PARALLEL:=1
+PKG_FIXUP:=autoreconf
+
+PKG_LICENSE:=LGPL-2.1-or-later GPL-2.0-or-later
+PKG_LICENSE_FILES:=COPYING
+PKG_MAINTAINER:= \
+	Jiri Slachta <jiri@slachta.eu> \
+	Sebastian Kemper <sebastian_ml@gmx.net>
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/libspandsp3
+  SUBMENU:=Telephony
+  SECTION:=libs
+  CATEGORY:=Libraries
+  TITLE:=spandsp3 library
+  DEPENDS:=+libjpeg +libtiff
+  URL:=https://github.com/freeswitch/spandsp
+  ABI_VERSION:=3
+endef
+
+# Use fixed point math when soft float support is enabled for target devices.
+ifeq ($(CONFIG_SOFT_FLOAT),y)
+CONFIGURE_ARGS+= \
+	--enable-fixed-point
+endif
+
+define Build/InstallDev
+	$(INSTALL_DIR) \
+		$(1)/usr/lib/spandsp3/{include/spandsp/private,lib}
+
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libspandsp* \
+		$(1)/usr/lib/spandsp3/lib
+
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/include/spandsp.h \
+		$(1)/usr/lib/spandsp3/include
+
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/include/spandsp/*.h \
+		$(1)/usr/lib/spandsp3/include/spandsp
+
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/include/spandsp/private/*.h \
+		$(1)/usr/lib/spandsp3/include/spandsp/private
+
+	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/spandsp.pc \
+		$(1)/usr/lib/pkgconfig/spandsp3.pc
+endef
+
+define Package/libspandsp3/install
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libspandsp.so.$(ABI_VERSION)* \
+		$(1)/usr/lib
+endef
+
+$(eval $(call BuildPackage,libspandsp3))

libs/spandsp3/patches/01-spandsp3-pkg-config.patch

@@ -0,0 +1,18 @@
+--- a/spandsp.pc.in
++++ b/spandsp.pc.in
+@@ -1,12 +1,12 @@
+ prefix=@prefix@
+ exec_prefix=@exec_prefix@
+-libdir=@libdir@
+-includedir=@includedir@
++libdir=${exec_prefix}/lib/spandsp3/lib
++includedir=${prefix}/lib/spandsp3/include
+ 
+ Name: spandsp
+ Description: A DSP library for telephony.
+ Requires:
+ Version: @VERSION@
+-Libs: -L${libdir} -lspandsp
++Libs: -L${libdir} -l:libspandsp.so.3
+ Libs.private: -ltiff -lm
+ Cflags: -I${includedir}