From cc2cf7db1978484ff1657d9acd8c7d1da8f9702d Mon Sep 17 00:00:00 2001
From: DRC <dcommander@users.sourceforge.net>
Date: Sun, 3 Apr 2011 06:10:18 +0000
Subject: [PATCH] Allow customization of Java compiler flags

---
 BUILDING.txt        | 7 +++++++
 CMakeLists.txt      | 3 +++
 java/CMakeLists.txt | 3 ++-
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/BUILDING.txt b/BUILDING.txt
index 13384424..416d8c10 100644
--- a/BUILDING.txt
+++ b/BUILDING.txt
@@ -469,6 +469,13 @@ Java front-end classes to support it.  This allows the TurboJPEG/OSS dynamic
 library to be used directly from Java applications.  See java/README for more
 details.
 
+If you are using CMake 2.8, you can set the Java_JAVAC_EXECUTABLE,
+Java_JAVA_EXECUTABLE, and Java_JAR_EXECUTABLE CMake variables to specify
+alternate commands or locations for javac, jar, and java (respectively.)  If
+you are using CMake 2.6, set JAVA_COMPILE, JAVA_RUNTIME, and JAVA_ARCHIVE
+instead.  You can also set the JAVACFLAGS CMake variable to specify arguments
+that should be passed to the Java compiler when building the front-end classes.
+
 
 ========================
 Installing libjpeg-turbo
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8e3d9a81..712b7c31 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -118,6 +118,9 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_SOURCE_DIR})
 if(WITH_JAVA)
   find_package(Java)
   find_package(JNI)
+  if(DEFINED JAVACFLAGS)
+    message(STATUS "Java compiler flags = ${JAVACFLAGS}")
+  endif()
 endif()
 
 
diff --git a/java/CMakeLists.txt b/java/CMakeLists.txt
index 8f35862a..08795f77 100644
--- a/java/CMakeLists.txt
+++ b/java/CMakeLists.txt
@@ -39,8 +39,9 @@ set(JAVA_CLASSES ${JAVA_CLASSES}
 set(JAVA_CLASSES_FULL ${JAVA_CLASSES_FULL}
   ${OBJDIR}/org/libjpegturbo/turbojpeg/TJLoader.class)
 
+string(REGEX REPLACE " " ";" JAVACFLAGS "${JAVACFLAGS}")
 add_custom_command(OUTPUT ${JAVA_CLASSES_FULL} DEPENDS ${JAVA_SOURCES}
-  COMMAND ${JAVA_COMPILE} -d ${OBJDIR} ARGS ${JAVA_SOURCES})
+  COMMAND ${JAVA_COMPILE} ARGS ${JAVACFLAGS} -d ${OBJDIR} ${JAVA_SOURCES})
 
 add_custom_command(OUTPUT ${JAR_FILE} DEPENDS ${JAVA_CLASSES_FULL}
   ${MANIFEST_FILE}