espeak: fix build on sparc64

sparc64 needs object files to be built with -fPIC in order to be
usable in shared libraries, otherwise the shared library cannot be
created.

Fixes:

  http://autobuild.buildroot.org/results/8b8/8b894f0bd42c18e7cda98c15480757f10d743423/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/espeak/0001-Fix-build-of-shared-library-on-architectures-needing.patch

@@ -0,0 +1,31 @@
+From 08a464e2b6bd31bb2bf4e258ebfa9b9d65805abf Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Fri, 27 Nov 2015 15:17:02 +0100
+Subject: [PATCH] Fix build of shared library on architectures needing -fPIC
+
+Certain architectures, like Sparc and Sparc64 require objects to be
+built with -fPIC (and not just -fpic) to be usable in shared
+libraries. On other architectures, -fPIC is the same as -fpic so this
+patch doesn't affect such architectures.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ src/Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/Makefile b/src/Makefile
+index 95fe549..c293611 100755
+--- a/src/Makefile
++++ b/src/Makefile
+@@ -110,7 +110,7 @@ $(BIN2_NAME): $(OBJS3) $(LIB_NAME)
+ 
+ 
+ x_%.o: %.cpp
+-	$(CXX) $(CXXFLAGS) $(USE_AUDIO) -D PATH_ESPEAK_DATA=\"$(DATADIR)\" -Wall -fpic -fvisibility=hidden -pedantic \
++	$(CXX) $(CXXFLAGS) $(USE_AUDIO) -D PATH_ESPEAK_DATA=\"$(DATADIR)\" -Wall -fPIC -fvisibility=hidden -pedantic \
+ 	-I. -D LIBRARY -c -fno-exceptions  $<  -o x_$*.o
+ 
+ $(LIB_NAME): $(OBJS2)
+-- 
+2.6.3
+