--- source/Irrlicht/Makefile.orig	2021-11-08 14:14:39 UTC
+++ source/Irrlicht/Makefile
@@ -58,23 +58,20 @@ BZIP2OBJ = bzip2/blocksort.o bzip2/huffman.o bzip2/crc
 EXTRAOBJ =
 LINKOBJ = $(IRRMESHOBJ) $(IRROBJ) $(IRRPARTICLEOBJ) $(IRRANIMOBJ) \
 	$(IRRVIDEOOBJ) $(IRRSWRENDEROBJ) $(IRRIOOBJ) $(IRROTHEROBJ) \
-	$(IRRGUIOBJ) $(ZLIBOBJ) $(JPEGLIBOBJ) $(LIBPNGOBJ) $(LIBAESGM) \
-	$(BZIP2OBJ) $(EXTRAOBJ)
+	$(IRRGUIOBJ) $(LIBAESGM) \
+	$(EXTRAOBJ)
 
 ###############
 #Compiler flags
-CXXINCS = -I../../include -Izlib -Ijpeglib -Ilibpng
+CXXINCS = -I../../include -I${LOCALBASE}/include
 CPPFLAGS += $(CXXINCS) -DIRRLICHT_EXPORTS=1
 CXXFLAGS += -Wall -pipe -fno-exceptions -fno-rtti -fstrict-aliasing
 ifndef NDEBUG
 CXXFLAGS += -g -D_DEBUG
-else
-CXXFLAGS += -fexpensive-optimizations -O3
 endif
 ifdef PROFILE
 CXXFLAGS += -pg
 endif
-CFLAGS := -O3 -fexpensive-optimizations -DPNG_THREAD_UNSAFE_OK -DPNG_NO_MMX_CODE -DPNG_NO_MNG_FEATURES
 
 sharedlib sharedlib_osx: CXXFLAGS += -fPIC
 sharedlib sharedlib_osx: CFLAGS += -fPIC
@@ -85,13 +82,13 @@ LIBSELECT=64
 endif
 
 #Linux specific options
-staticlib sharedlib install: SYSTEM = Linux
+staticlib sharedlib install: SYSTEM = FreeBSD
 STATIC_LIB = libIrrlicht.a
 LIB_PATH = ../../lib/$(SYSTEM)
-INSTALL_DIR = /usr/local/lib
+INSTALL_DIR = ${DESTDIR}${PREFIX}/lib
 sharedlib install: SHARED_LIB = libIrrlicht.so
-sharedlib: LDFLAGS += -L/usr/X11R6/lib$(LIBSELECT) -lGL -lXxf86vm
-staticlib sharedlib: CXXINCS += -I/usr/X11R6/include
+sharedlib: LDFLAGS += -L${LOCALBASE}/lib -lGL -lXxf86vm -lX11 -lpng -ljpeg -lbz2 -lz
+staticlib sharedlib: CXXINCS += -I${LOCALBASE}/include
 
 #OSX specific options
 staticlib_osx sharedlib_osx install_osx: SYSTEM = MacOSX