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diff -up irrlicht-1.8/include/IrrCompileConfig.h.optflags irrlicht-1.8/include/IrrCompileConfig.h
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--- irrlicht-1.8/include/IrrCompileConfig.h.optflags	2012-11-05 15:14:14.000000000 -0500
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+++ irrlicht-1.8/include/IrrCompileConfig.h	2012-11-13 12:45:47.316780394 -0500
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@@ -245,7 +245,7 @@ the engine will no longer read .jpeg ima
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 //! Define _IRR_USE_NON_SYSTEM_JPEG_LIB_ to let irrlicht use the jpeglib which comes with irrlicht.
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 /** If this is commented out, Irrlicht will try to compile using the jpeg lib installed in the system.
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 	This is only used when _IRR_COMPILE_WITH_LIBJPEG_ is defined. */
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-#define _IRR_USE_NON_SYSTEM_JPEG_LIB_
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+// #define _IRR_USE_NON_SYSTEM_JPEG_LIB_
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 #ifdef NO_IRR_USE_NON_SYSTEM_JPEG_LIB_
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 #undef _IRR_USE_NON_SYSTEM_JPEG_LIB_
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 #endif
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@@ -261,7 +261,7 @@ the engine will no longer read .png imag
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 //! Define _IRR_USE_NON_SYSTEM_LIBPNG_ to let irrlicht use the libpng which comes with irrlicht.
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 /** If this is commented out, Irrlicht will try to compile using the libpng installed in the system.
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 	This is only used when _IRR_COMPILE_WITH_LIBPNG_ is defined. */
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-#define _IRR_USE_NON_SYSTEM_LIB_PNG_
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+// #define _IRR_USE_NON_SYSTEM_LIB_PNG_
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 #ifdef NO_IRR_USE_NON_SYSTEM_LIB_PNG_
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 #undef _IRR_USE_NON_SYSTEM_LIB_PNG_
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 #endif
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@@ -598,7 +598,7 @@ ones. */
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 /** If this is commented out, Irrlicht will try to compile using the zlib
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 installed on the system. This is only used when _IRR_COMPILE_WITH_ZLIB_ is
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 defined. */
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-#define _IRR_USE_NON_SYSTEM_ZLIB_
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+// #define _IRR_USE_NON_SYSTEM_ZLIB_
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 #ifdef NO_IRR_USE_NON_SYSTEM_ZLIB_
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 #undef _IRR_USE_NON_SYSTEM_ZLIB_
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 #endif
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@@ -619,7 +619,7 @@ library. */
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 /** If this is commented out, Irrlicht will try to compile using the bzlib
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 installed on the system. This is only used when _IRR_COMPILE_WITH_BZLIB_ is
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 defined. */
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-#define _IRR_USE_NON_SYSTEM_BZLIB_
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+// #define _IRR_USE_NON_SYSTEM_BZLIB_
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 #ifdef NO_IRR_USE_NON_SYSTEM_BZLIB_
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 #undef _IRR_USE_NON_SYSTEM_BZLIB_
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 #endif
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diff -up irrlicht-1.8/source/Irrlicht/Makefile.optflags irrlicht-1.8/source/Irrlicht/Makefile
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--- irrlicht-1.8/source/Irrlicht/Makefile.optflags	2012-11-05 15:14:12.000000000 -0500
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+++ irrlicht-1.8/source/Irrlicht/Makefile	2012-11-13 12:46:35.660811963 -0500
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@@ -56,18 +56,17 @@ BZIP2OBJ = bzip2/blocksort.o bzip2/huffm
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 EXTRAOBJ =
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 LINKOBJ = $(IRRMESHOBJ) $(IRROBJ) $(IRRPARTICLEOBJ) $(IRRANIMOBJ) \
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 	$(IRRVIDEOOBJ) $(IRRSWRENDEROBJ) $(IRRIOOBJ) $(IRROTHEROBJ) \
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-	$(IRRGUIOBJ) $(ZLIBOBJ) $(JPEGLIBOBJ) $(LIBPNGOBJ) $(LIBAESGM) \
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-	$(BZIP2OBJ) $(EXTRAOBJ)
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+        $(IRRGUIOBJ) $(EXTRAOBJ)
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 ###############
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 #Compiler flags
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-CXXINCS = -I../../include -Izlib -Ijpeglib -Ilibpng
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-CPPFLAGS += $(CXXINCS) -DIRRLICHT_EXPORTS=1
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-CXXFLAGS += -Wall -pipe -fno-exceptions -fno-rtti -fstrict-aliasing
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+CXXINCS = -I../../include `libpng-config --cflags`
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+CPPFLAGS += $(CXXINCS) -DIRRLICHT_EXPORTS=1 $(RPM_OPT_FLAGS)
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+CXXFLAGS += $(RPM_OPT_FLAGS) -Wall -pipe -fno-exceptions -fno-rtti -fstrict-aliasing
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 ifndef NDEBUG
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 CXXFLAGS += -g -D_DEBUG
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 else
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-CXXFLAGS += -fexpensive-optimizations -O3
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+CXXFLAGS += -fexpensive-optimizations -O3 $(RPM_OPT_FLAGS)
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 endif
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 ifdef PROFILE
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 CXXFLAGS += -pg
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@@ -88,7 +87,7 @@ STATIC_LIB = libIrrlicht.a
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 LIB_PATH = ../../lib/$(SYSTEM)
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 INSTALL_DIR = /usr/local/lib
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 sharedlib install: SHARED_LIB = libIrrlicht.so
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-sharedlib: LDFLAGS += -L/usr/X11R6/lib$(LIBSELECT) -lGL -lXxf86vm
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+sharedlib: LDFLAGS += -L/usr/X11R6/lib$(LIBSELECT) -lGL -lXxf86vm -lz -ljpeg `libpng-config --libs` -lbz2 -laesgm
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 staticlib sharedlib: CXXINCS += -I/usr/X11R6/include
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 #OSX specific options