I cleared out that cmake tries to generate command-line for clang which is
default compiler on mac and which recogizes these command-line parameters,
but i've set
gcc as c/cpp compiler.
So i had to solve it using hack - commented few lines in Darwin.cmake:
# 4ntoine (fix for libftdi compilation using
cmake)#set(CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG
"-compatibility_version ")#set(CMAKE_C_OSX_CURRENT_VERSION_FLAG
"-current_version ")#set(CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG
"${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}")#set(CMAKE_CXX_OSX_CURRENT_VERSION_FLAG
"${CMAKE_C_OSX_CURRENT_VERSION_FLAG}")
# ...
# 4ntoine (fix for libftdi build using cmake)#if(NOT XCODE)# Enable
shared library versioning. This flag is not actually referenced# but
the fact that the setting exists will cause the generators to support#
soname computation.# set(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG
"-install_name")#endif()
So now i have another problem:
cd /Users/asmirnov/Documents/dev/src/libftdi-1.0/build/src &&
/usr/local/Cellar/cmake/2.8.11.1/bin/cmake -E cmake_link_script
CMakeFiles/ftdi1.dir/link.txt
--verbose=1/softdev/arm-toolchain/bin/arm-linux-androideabi-gcc -O2
-g -DNDEBUG -dynamiclib -Wl,-headerpad_max_install_names
-L/softdev/arm-libs/lib -o libftdi1.dylib
CMakeFiles/ftdi1.dir/ftdi.c.o CMakeFiles/ftdi1.dir/ftdi_stream.c.o
/softdev/arm-libs/lib/libusb-1.0.so
/softdev/arm-toolchain/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld:
/softdev/arm-toolchain/bin/../sysroot/usr/lib/crtbegin_dynamic.o: in
function _start:crtbrand.c(.text+0x78): error: undefined reference to
'main'
collect2: ld returned 1 exit status
make[2]: *** [src/libftdi1.dylib] Error 1
make[1]: *** [src/CMakeFiles/ftdi1.dir/all] Error 2
make: *** [all] Error 2
Any thoughs?
It seems that the problem is that main() function is absent in object files
for ftdi.c.o, ftdi_stream.c.o.
PS. Is moving to cmake was really necessary to compile 5 files (i've spend
2 days trying to do it)?
2013/8/21 Anton Smirnov <[email protected]>
> Libusb for ARM and native have the same syntax so i've decided not to fix
> library paths (leave using system) as final executable is build using
> autotools and i'm
> able to configure cross-compilation for it.
>
> So when executing "make" i'm getting error (make VERBOSE=1):
>
> cd /Users/asmirnov/Documents/dev/src/libftdi-1.0/src &&
> /usr/local/Cellar/cmake/2.8.11.1/bin/cmake -E cmake_link_script
> CMakeFiles/ftdi1.dir/link.txt --verbose=1
> /softdev/arm-toolchain/bin/arm-linux-androideabi-gcc -O2 -g -DNDEBUG
> -dynamiclib -Wl,-headerpad_max_install_names -L/softdev/arm-libs/lib
> -compatibility_version 2.0.0 -current_version 2.0.0 -o libftdi1.2.0.0.dylib
> -install_name
> /Users/asmirnov/Documents/dev/src/libftdi-1.0/src/libftdi1.2.dylib
> CMakeFiles/ftdi1.dir/ftdi.c.o CMakeFiles/ftdi1.dir/ftdi_stream.c.o
> /usr/local/lib/libusb-1.0.dylib
> arm-linux-androideabi-gcc: error: 2.0.0: No such file or directory
> arm-linux-androideabi-gcc: error: 2.0.0: No such file or directory
> arm-linux-androideabi-gcc: error:
> /Users/asmirnov/Documents/dev/src/libftdi-1.0/src/libftdi1.2.dylib: No such
> file or directory
> arm-linux-androideabi-gcc: error: unrecognized option
> '-compatibility_version'
> arm-linux-androideabi-gcc: error: unrecognized option '-current_version'
> make[2]: *** [src/libftdi1.2.0.0.dylib] Error 1
> make[1]: *** [src/CMakeFiles/ftdi1.dir/all] Error 2
> make: *** [all] Error 2
>
> So it seems that cmake created command line for gcc incorrectly - gcc does
> not understand "-compatibility_version 2.0.0 -current_version 2.0.0".
> What's wrong with this?
>
>
> 2013/8/21 Anton Smirnov <[email protected]>
>
>> I've used autotools to cross-compile libftdi-0.1 for ARM Linux:
>>
>> export CPPFLAGS="-I/softdev/arm-libs/include/libusb"
>> export LDFLAGS="-L/softdev/arm-libs/lib"
>> ./configure --build=x86-unknown-linux-gnu --host=arm-linux-androideabi
>> --target=arm-linux-androideabi --prefix=/softdev/arm-libs
>>
>> Now i'm going to do the same for libftdi1 and i was surprised that
>> libftdi is now build with cmake.
>> After getting familiar with cmake and googling for a few hours i
>> constructed build command for it which seems to be good for my purpose:
>>
>> cmake -DCMAKE_INSTALL_PREFIX="/softdev/arm-libs"
>> -DCMAKE_C_COMPILER="${CC}" -DCMAKE_CXX_COMPILER="${CXX}"
>> -DCMAKE_CXX_FLAGS="${CPPFLAGS}" -DCMAKE_SYSTEM_NAME="Linux"
>> -DLIBUSB_INCLUDE_DIR="/softdev/arm-libs/include/libusb"
>> -DCMAKE_HOST_SYSTEM_NAME="Linux" -DCMAKE_FIND_ROOT_PATH="/softdev/arm-libs"
>> -G "Unix Makefiles" ..
>>
>> So i'm getting error during "make":
>> arm-linux-androideabi-gcc: error: 2.0.0: No such file or directory
>> arm-linux-androideabi-gcc: error: 2.0.0: No such file or directory
>>
>> cmake find compilers (c and c++) correctly, but does not use ARM libs for
>> linker (still uses system paths).
>>
>> What's wrong? Can it be cross-compiled in more simple way?
>> Libusb-1.0 is cross-compiled and is located in specified paths for sure.
>>
>> Regards, Anton.
>>
>>
>
>
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