Make pkg-config and source consistent with installation
diff --git a/Makefile b/Makefile
index 15c06ba..f226a6d 100644
--- a/Makefile
+++ b/Makefile
@@ -237,7 +237,7 @@
 
 
 PKGCFGDIR ?= $(LIBDATADIR)/pkgconfig
-API_MAJOR=$(shell echo `grep -e CS_API_MAJOR include/capstone.h | grep -v = | awk '{print $$3}'` | awk '{print $$1}')
+API_MAJOR=$(shell echo `grep -e CS_API_MAJOR include/capstone/capstone.h | grep -v = | awk '{print $$3}'` | awk '{print $$1}')
 VERSION_EXT =
 
 IS_APPLE := $(shell $(CC) -dM -E - < /dev/null | grep __apple_build_version__ | wc -l | tr -d " ")
@@ -373,7 +373,7 @@
 	$(INSTALL_DATA) $(ARCHIVE) $(LIBDIR)
 endif
 	mkdir -p $(INCDIR)/$(LIBNAME)
-	$(INSTALL_DATA) include/*.h $(INCDIR)/$(LIBNAME)
+	$(INSTALL_DATA) include/capstone/*.h $(INCDIR)/$(LIBNAME)
 	mkdir -p $(PKGCFGDIR)
 	$(INSTALL_DATA) $(PKGCFGF) $(PKGCFGDIR)/
 
@@ -453,7 +453,7 @@
 	echo 'Description: Capstone disassembly engine' >> $(PKGCFGF)
 	echo 'Version: $(PKG_VERSION)' >> $(PKGCFGF)
 	echo 'libdir=$(LIBDIR)' >> $(PKGCFGF)
-	echo 'includedir=$(INCDIR)/capstone' >> $(PKGCFGF)
+	echo 'includedir=$(INCDIR)' >> $(PKGCFGF)
 	echo 'archive=$${libdir}/libcapstone.a' >> $(PKGCFGF)
 	echo 'Libs: -L$${libdir} -lcapstone' >> $(PKGCFGF)
 	echo 'Cflags: -I$${includedir}' >> $(PKGCFGF)