Add missing header files dependencies

CMakeLists.txt

@@ -74,6 +74,14 @@ string(REGEX REPLACE "^.*=[ \t]*\\\\" ""
 string(REGEX REPLACE "[ \t\n]" "" PGRN_SOURCES "${PGRN_SOURCES}")
 string(REGEX REPLACE "\\\\" ";" PGRN_SOURCES "${PGRN_SOURCES}")
 
+file(READ
+  ${CMAKE_CURRENT_SOURCE_DIR}/makefiles/pgroonga-headers.mk
+  PGRN_HEADERS)
+string(REGEX REPLACE "^.*=[ \t]*\\\\" ""
+  PGRN_HEADERS "${PGRN_HEADERS}")
+string(REGEX REPLACE "[ \t\n]" "" PGRN_HEADERS "${PGRN_HEADERS}")
+string(REGEX REPLACE "\\\\" ";" PGRN_HEADERS "${PGRN_HEADERS}")
+
 file(READ
   ${CMAKE_CURRENT_SOURCE_DIR}/makefiles/pgroonga-check-sources.mk
   PGRN_CHECK_SOURCES)
@@ -91,6 +99,7 @@ configure_file(
   @ONLY)
 set(PGRN_SOURCES
   "${CMAKE_CURRENT_BINARY_DIR}/src/pgroonga.rc"
+  ${PGRN_HEADERS}
   ${PGRN_SOURCES})
 add_library("${PGRN_LIBRARY_NAME}" SHARED ${PGRN_SOURCES})
 set_target_properties("${PGRN_LIBRARY_NAME}"

makefiles/pgroonga-headers.mk

@@ -0,0 +1,27 @@
+HEADERS =					\
+	src/pgrn-column-name.h			\
+	src/pgrn-command-escape-value.h		\
+	src/pgrn-compatible.h			\
+	src/pgrn-convert.h			\
+	src/pgrn-create.h			\
+	src/pgrn-ctid.h				\
+	src/pgrn-global.h			\
+	src/pgrn-groonga-tuple-is-alive.h	\
+	src/pgrn-groonga.h			\
+	src/pgrn-highlight-html.h		\
+	src/pgrn-index-status.h			\
+	src/pgrn-jsonb.h			\
+	src/pgrn-keywords.h			\
+	src/pgrn-match-positions-byte.h		\
+	src/pgrn-match-positions-character.h	\
+	src/pgrn-options.h			\
+	src/pgrn-pg.h				\
+	src/pgrn-portable.h			\
+	src/pgrn-query-expand.h			\
+	src/pgrn-query-extract-keywords.h	\
+	src/pgrn-search.h			\
+	src/pgrn-value.h			\
+	src/pgrn-variables.h			\
+	src/pgrn-wal.h				\
+	src/pgroonga.h				\
+	vendor/xxHash/xxhash.h

pgroonga.mk

@@ -5,7 +5,9 @@ endif
 
 MODULE_big = pgroonga
 include makefiles/pgroonga-sources.mk
+include makefiles/pgroonga-headers.mk
 OBJS = $(SRCS:.c=.o)
+$(OBJS): $(HEADERS)
 EXTENSION = pgroonga
 
 ifdef GP