From 19c748533949b3dcc45816383b9f6dd4e06130d1 Mon Sep 17 00:00:00 2001
From: Sfan5 <sfan5@live.de>
Date: Sun, 9 Mar 2014 12:18:48 +0100
Subject: [PATCH] Allow selecting include dir & library for libgd

---
 CMakeLists.txt | 25 +++++++++++++++++--------
 1 file changed, 17 insertions(+), 8 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a861bbc..dec60f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,28 +6,34 @@ set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
 set(CMAKE_CXX_FLAGS_RELEASE "-std=c++0x -Wall -DNDEBUG")
 set(CMAKE_CXX_FLAGS_DEBUG   "-O0 -g -std=c++0x -Wall -Wextra -DDEBUG")
 
+# Find libgd
+find_library(LIBGD_LIBRARY gd)
+find_path(LIBGD_INCLUDE_DIR gd.h)
+message (STATUS "libgd library: ${LIBGD_LIBRARY}")
+message (STATUS "libgd headers: ${LIBGD_INCLUDE_DIR}")
+if(NOT LIBGD_LIBRARY OR NOT LIBGD_INCLUDE_DIR)
+	message(FATAL_ERROR "libgd not found!")
+endif(NOT LIBGD_LIBRARY OR NOT LIBGD_INCLUDE_DIR)
 
 find_package(PkgConfig)
 include(FindPackageHandleStandardArgs)
 
+# Find libsqlite3
 pkg_check_modules(PC_LIBSQLITE QUIET sqlite3)
 set(LIBSQLITE3_DEFINITIONS ${PC_LIBSQLITE_CFLAGS_OTHER})
-
 find_path(LIBSQLITE3_INCLUDE_DIR sqlite3.h HINTS ${PC_LIBSQLITE_INCLUDEDIR} ${PC_LIBSQLITE_INCLUDE_DIRS} PATH_SUFFIXES libsqlite3)
 find_library(LIBSQLITE3_LIBRARY NAMES sqlite3 libsqlite3 HINTS ${PC_LIBSQLITE_LIBDIR} ${PC_LIBSQLITE_LIBRARY_DIRS})
 
-set(LIBSQLITE3_LIBRARIES ${LIBSQLITE3_LIBRARY} )
+set(LIBSQLITE3_LIBRARIES ${LIBSQLITE3_LIBRARY})
 set(LIBSQLITE3_INCLUDE_DIRS ${LIBSQLITE3_INCLUDE_DIR})
-
 find_package_handle_standard_args(LibSqlite3  DEFAULT_MSG LIBSQLITE3_LIBRARY LIBSQLITE3_INCLUDE_DIR)
-
 mark_as_advanced(LIBSQLITE3_INCLUDE_DIR LIBSQLITE3_LIBRARY)
 
-if (LIBSQLITE3_INCLUDE_DIR)
-else (LIBSQLITE3_INCLUDE_DIR)
+if(NOT LIBSQLITE3_INCLUDE_DIR)
 	message(FATAL_ERROR "Could not find sqlite3")
-endif (LIBSQLITE3_INCLUDE_DIR)
+endif(NOT LIBSQLITE3_INCLUDE_DIR)
 
+# Find leveldb
 set(USE_LEVELDB 0)
 
 OPTION(ENABLE_LEVELDB "Enable LevelDB backend")
@@ -47,6 +53,7 @@ if(ENABLE_LEVELDB)
 	endif(LEVELDB_LIBRARY AND LEVELDB_INCLUDE_DIR)
 endif(ENABLE_LEVELDB)
 
+# Find xxd
 find_program(XXD_EXECUTABLE xxd)
 
 if (XXD_EXECUTABLE)
@@ -55,6 +62,7 @@ else (XXD_EXECUTABLE)
 	message(FATAL_ERROR "xxd not found")
 endif (XXD_EXECUTABLE)
 
+# Add command to turn colors.txt into a C header file
 add_custom_command(
 	OUTPUT colors.h
 	COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/colors.txt colors.txt
@@ -68,6 +76,7 @@ include_directories(
 	"${CMAKE_CURRENT_SOURCE_DIR}"
 	"${CMAKE_CURRENT_BINARY_DIR}"
 	${LIBSQLITE3_INCLUDE_DIRS}
+	${LIBGD_INCLUDE_DIR}
 )
 
 configure_file(
@@ -97,6 +106,6 @@ target_link_libraries(
 	minetestmapper
 	${LIBSQLITE3_LIBRARIES}
 	${LEVELDB_LIBRARY}
-	gd
+	${LIBGD_LIBRARY}
 	z
 )