Cross compiling and an error that doesn't make any sense to me

[aManFromOuterSpace]

Hi guys,

Small problem, I am doing some cross compiling and I am getting a build error that is making little sense to me, the error states that the file libpng.so.3 cannot be found, but it is there, in /usr/lib. I'm not really sure what to do to clear the build error, error mentions something about -rpath again not quite sure what to with this.

Compiling /home/wayne/inflexion/InflexionUI-Runtime-2.3/Linux/eftDemo/src/demo.c
Compiling /home/wayne/inflexion/InflexionUI-Runtime-2.3/Linux/eftDemo/src/ifxui_integration.c
Compiling /home/wayne/inflexion/InflexionUI-Runtime-2.3/Linux/eftDemo/packages/engineTemplate/rom/eft-1.0.0_FileTable.c
Compiling /home/wayne/inflexion/InflexionUI-Runtime-2.3/Linux/eftDemo/../inflexionui/framework/src/framework_linux_generic.c
arm-cortexa8-linux-gnueabi-g++ -fno-exceptions -fno-rtti -DLINUX -O3 -I/home/wayne/inflexion/InflexionUI-Runtime-2.3/Linux/eftDemo/.. -march=armv7-a -mtune=cortex-a8 -mfpu=vfpv3 -mfloat-abi=soft -o /home/wayne/inflexion/InflexionUI-Runtime-2.3/Linux/eftDemo/bin/vm_demo obj/demo.o obj/ifxui_integration.o obj/eft-1.0.0_FileTable.o obj/framework_linux_generic.o -L/home/wayne/inflexion/InflexionUI-Runtime-2.3/Linux/eftDemo/../inflexionui/libs/armeabi/iMX5x/no_gpu -L/home/wayne/factory-20110718/build_armv7l-timesys-linux-gnueabi/rfs/usr/lib -lfreetype -lz -lpng -linflexionui -L/home/wayne/inflexion/InflexionUI-Runtime-2.3/Linux/eftDemo/../inflexionui/libs/armeabi/iMX5x/no_gpu -Xlinker -rpath -Xlinker --allow-shlib-undefined -Xlinker --gc-sections
/usr/local/arm/cross-gcc-4.4.1-armv7a-soft/i686-pc-linux-gnu/lib/gcc/arm-cortexa8-linux-gnueabi/4.4.1/../../../../arm-cortexa8-linux-gnueabi/bin/ld: warning: libpng.so.3, needed by /home/wayne/inflexion/InflexionUI-Runtime-2.3/Linux/eftDemo/../inflexionui/libs/armeabi/iMX5x/no_gpu/libinflexionui.so, not found (try using -rpath or -rpath-link)
/home/wayne/inflexion/InflexionUI-Runtime-2.3/Linux/eftDemo/../inflexionui/libs/armeabi/iMX5x/no_gpu/libinflexionui.so: undefined reference to `__longjmp_chk@GLIBC_2.11'
collect2: ld returned 1 exit status
make: *** [all] Error 1

Oh yeah and here is the makefile

# The location of libinflexionui.so.
LIB_DIR = $(BUILDDIR)/inflexionui/libs/armeabi/iMX5x/no_gpu

# Specify the cross compiler to use
CROSS_TOOLCHAIN := arm-cortexa8-linux-gnueabi-

APP = vm_demo
BUILDDIR=$(CURDIR)/..
APP_DIR = $(CURDIR)
EXE = $(APP_DIR)/bin/$(APP)
OBJDIR = obj

OBJS = $(OBJDIR)/demo.o \
       $(OBJDIR)/ifxui_integration.o
             
OBJS += $(OBJDIR)/eft-1.0.0_FileTable.o

# Set the framework source depending on the platform being used.
OBJS += $(OBJDIR)/framework_linux_generic.o

# Compiler options
CFLAGS += -DLINUX
CFLAGS += -O3
CFLAGS += -I$(BUILDDIR)

CXXFLAGS += -fno-exceptions -fno-rtti
CFLAGS += -march=armv7-a -mtune=cortex-a8 -mfpu=vfpv3 -mfloat-abi=soft

# Linker options
LDFLAGS += -L$(LIB_DIR)
LDFLAGS += -L$(LTIB_ROOTFS)/usr/lib
LDFLAGS += -lfreetype -lz -lpng
LDFLAGS += -linflexionui -L$(LIB_DIR)
LDFLAGS += -Xlinker -rpath
LDFLAGS += -Xlinker --allow-shlib-undefined
LDFLAGS += -Xlinker --gc-sections

default: all

ifndef LTIB_ROOTFS
    $(error "LTIB_ROOTFS is not defined")
endif

.PHONY: ltib_check
ltib_check: $(LTIB_ROOTFS)/usr/lib
	@echo "Using the following as the LTIB rootfs (location of iMX5 target libraries):"
	@echo $(LTIB_ROOTFS)
	@echo ""
	

all: ltib_check $(OBJS)
	$(CROSS_TOOLCHAIN)g++ $(CXXFLAGS) $(CFLAGS) -o $(EXE) $(OBJS) $(LDFLAGS)
	@echo ""
	@echo "*************************************************"
	@echo "* Successfully created $(notdir $(EXE))"
	@echo "*************************************************"
	@echo ""

# Steps to compile source files
$(OBJDIR)/%.o: ./%.c
	@mkdir -p $(@D)
	@echo Compiling $^
	@$(CROSS_TOOLCHAIN)gcc -c $(CFLAGS) $^ -o $@

clean:
	@$(RM) -Rf $(OBJDIR)
	@$(RM) $(EXE)

install:
	#$(INSTALL) -s $(EXE) -D $(DESTDIR)/$(bindir)/$(APP)
	$(CROSS_TOOLCHAIN)strip -s $(EXE)

# Specify the directories in which the source files 
# are looked for when building.
vpath %.c $(APP_DIR)/src
vpath %.c $(APP_DIR)/packages/engineTemplate/rom
vpath %.c $(BUILDDIR)/inflexionui/framework/src

Ta very much

[Rubberman]

What is your Linux distribution+version, and are you running 64-bit or 32-bit operating system?

[BrianMicek]

Hello,
I think I see your problem. I am betting that the existing libpng.so in /usr/lib is for an x86 and not an arm. You can probably use the file command to tell which one it is compiled for.