asterisk-chan-dongle: add postinst note

Provide quick hint to users to sort out possible/likely permission
issue.

Also refreshes some patches.

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

net/asterisk-chan-dongle/Makefile

@@ -13,7 +13,7 @@ PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/wdoekes/asterisk-chan-dongle.git
 PKG_SOURCE_VERSION:=3d2a97f26ba84473a0926a9fe9a32e451a56bc36
 PKG_SOURCE_DATE=2021-09-29
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 PKG_MIRROR_HASH:=b5baf737d39d522fa9b7055dea72c2d3241c272b20354fdf2a3bd09cce274844
 
 PKG_FIXUP:=autoreconf
@@ -64,4 +64,19 @@ define Package/asterisk-chan-dongle/install
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/chan_dongle.so $(1)$(MODULES_DIR)
 endef
 
+define Package/asterisk-chan-dongle/postinst
+#!/bin/sh
+if [ -z "$${IPKG_INSTROOT}" ]; then
+  echo
+  echo "o-------------------------------------------------------------------o"
+  echo "| asterisk-chan-dongle note                                         |"
+  echo "o-------------------------------------------------------------------o"
+  echo "| Adding the \"asterisk\" user to the \"dialout\" group might be        |"
+  echo "| required for asterisk to be able to access the dongle.            |"
+  echo "o-------------------------------------------------------------=^_^=-o"
+  echo
+fi
+exit 0
+endef
+
 $(eval $(call BuildPackage,asterisk-chan-dongle))

net/asterisk-chan-dongle/patches/200-fix-iconv-detection.patch

@@ -1,6 +1,6 @@
 --- a/configure.ac
 +++ b/configure.ac
-@@ -83,7 +83,7 @@ fi
+@@ -90,7 +90,7 @@ fi
  
  dnl Checks for libraries.
  dnl AC_CHECK_LIB([pthread], [pthread_create])  # should use ast_pthread_join everywhere?

net/asterisk-chan-dongle/patches/300-use-openwrt-flags.patch

@@ -1,8 +1,8 @@
 --- a/configure.ac
 +++ b/configure.ac
-@@ -224,8 +224,6 @@ dnl Apply options to defines
+@@ -237,8 +237,6 @@ dnl Apply options to defines
  if test "x$enable_debug" = "xyes" ; then
-   CFLAGS="$CFLAGS -O0 -g"
+   CFLAGS="$CFLAGS -O0 -g3"
    AC_DEFINE([__DEBUG__], [1], [Build with debugging])
 -else
 -  CFLAGS="$CFLAGS -O6"