speech_tools: Various improvements

- Fix gcc_syslibs dep on secondary architectures
- Remove -lstdc++ from linking commands
- Fix provide of devel package
- Make the devel package depend on devel:libncurses
- Install headers to speech_tools directory inside $includeDir
- Work around Festival's broken build system by symlinking configuration files
  and makefile rules
- Remove unneeded dependency on makefile_engine

app-accessibility/speech_tools/patches/speech_tools-2.4.patchset

@@ -2975,3 +2975,41 @@ index 71b271c..b7ac4a1 100644
 -- 
 1.8.3.4
 
+From d1dec5aa5d0de6e3f83fcf1ad07b2486a5f62e63 Mon Sep 17 00:00:00 2001
+From: Timothy Gu <timothygu99@gmail.com>
+Date: Fri, 26 Dec 2014 23:17:23 -0800
+Subject: Remove -lstdc++ from linking command
+
+
+diff --git a/config/compilers/gcc32.mak b/config/compilers/gcc32.mak
+index 9703a3e..43fea62 100644
+--- a/config/compilers/gcc32.mak
++++ b/config/compilers/gcc32.mak
+@@ -56,7 +56,7 @@ STATIC_LINKFLAGS = -Dstatic
+ MAKE_DEPEND_C = $(CC) -MM $(INCLUDES) $(TEMPLATES) $(TEMPLATE_SPECIFIC)
+ MAKE_DEPEND_CXX = $(CC) -MM $(INCLUDES) $(WARN_CXXFLAGS) $(TEMPLATES) $(TEMPLATE_SPECIFIC)
+ 
+-COMPILERLIBS= $(COMPILER_LIBS_DIR:%=-L%) -lstdc++
++COMPILERLIBS= $(COMPILER_LIBS_DIR:%=-L%)
+ 
+ 
+ 
+diff --git a/config/compilers/gcc_defaults.mak b/config/compilers/gcc_defaults.mak
+index befcd31..0be771d 100644
+--- a/config/compilers/gcc_defaults.mak
++++ b/config/compilers/gcc_defaults.mak
+@@ -96,10 +96,7 @@ STATIC_LINKFLAGS = -static
+ TEMPLATE_SPECIFIC = -DINSTANTIATE_TEMPLATES
+ TEMPLATE_ARGS = 
+ 
+-## The -lgcc here is redundant - gcc does this anyway - but it
+-## helps java know what needs to be loaded.
+-
+-COMPILERLIBS= $(COMPILER_LIBS_DIR:%=-L%) -lstdc++
++COMPILERLIBS= $(COMPILER_LIBS_DIR:%=-L%)
+ 
+ ## special ways of doing things, blank means default
+ 
+-- 
+1.8.3.4
+