Use includedir instead of prefix/include to install Eina headers.

SVN revision: 37925

legacy/eina/eina-0.pc.in

@@ -9,4 +9,4 @@ Requires:
 Version: @VERSION@
 Libs: -L${exec_prefix}/lib -leina
 Libs.private: -ldl
-Cflags: -I${prefix}/include/eina-@VMAJ@ -I${prefix}/include/eina-@VMAJ@/eina
+Cflags: -I${includedir}/eina-@VMAJ@ -I${includedir}/eina-@VMAJ@/eina

legacy/eina/src/include/Makefile.am

@@ -28,10 +28,10 @@ eina_inline_mempool.x \
 eina_inline_rectangle.x \
 eina_iterator.h
 
-installed_mainheaderdir = $(prefix)/include/eina-@VMAJ@
+installed_mainheaderdir = $(includedir)/eina-@VMAJ@
 installed_mainheader_DATA = Eina.h eina_config.h
 
-installed_headersdir = $(prefix)/include/eina-@VMAJ@/eina
+installed_headersdir = $(includedir)/eina-@VMAJ@/eina
 installed_headers_DATA = $(EINAHEADERS)
 
 EXTRA_DIST = \