I'm trying to follow these http://docs.opencv.org/doc/tutorials/introduction/ios_install/ios_install.html steps to build opencv for ios and got the following error:
-- Setting up iPhoneSimulator toolchain
-- iPhoneSimulator toolchain loaded
-- Setting up iPhoneSimulator toolchain
-- iPhoneSimulator toolchain loaded
-- The CXX compiler identification is GNU 4.2.1
-- The C compiler identification is GNU 4.2.1
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - failed
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - failed
-- Detected version of GNU GCC: 42 (402)
-- Performing Test HAVE_CXX_FSIGNED_CHAR
-- Performing Test HAVE_CXX_FSIGNED_CHAR - Failed
-- Performing Test HAVE_C_FSIGNED_CHAR
-- Performing Test HAVE_C_FSIGNED_CHAR - Failed
-- Performing Test HAVE_CXX_W
-- Performing Test HAVE_CXX_W - Failed
-- Performing Test HAVE_C_W
-- Performing Test HAVE_C_W - Failed
-- Performing Test HAVE_CXX_WALL
-- Performing Test HAVE_CXX_WALL - Failed
-- Performing Test HAVE_C_WALL
-- Performing Test HAVE_C_WALL - Failed
-- Performing Test HAVE_CXX_WERROR_RETURN_TYPE
-- Performing Test HAVE_CXX_WERROR_RETURN_TYPE - Failed
-- Performing Test HAVE_C_WERROR_RETURN_TYPE
-- Performing Test HAVE_C_WERROR_RETURN_TYPE - Failed
-- Performing Test HAVE_CXX_WERROR_ADDRESS
-- Performing Test HAVE_CXX_WERROR_ADDRESS - Failed
-- Performing Test HAVE_C_WERROR_ADDRESS
-- Performing Test HAVE_C_WERROR_ADDRESS - Failed
-- Performing Test HAVE_CXX_WERROR_SEQUENCE_POINT
-- Performing Test HAVE_CXX_WERROR_SEQUENCE_POINT - Failed
-- Performing Test HAVE_C_WERROR_SEQUENCE_POINT
-- Performing Test HAVE_C_WERROR_SEQUENCE_POINT - Failed
I use OSX 10.8.5 and XCode 5.0.2 I've tried to specify python executable explicitly
cmakeargs = ("-GXcode " +
"-DPYTHON_EXECUTABLE=/usr/bin/python " +
"-DCMAKE_BUILD_TYPE=Release " +
"-DCMAKE_TOOLCHAIN_FILE=%s/platforms/ios/cmake/Toolchains/Toolchain-%s_Xcode.cmake " +
"-DBUILD_opencv_world=ON " +
"-DCMAKE_INSTALL_PREFIX=install") % (srcroot, target)
But it didn't help. Also I tried to downgrade to opencv 2.4 - it didn't help either. Please advice.
UPDATE Found very first fail:
-- Setting up iPhoneOS toolchain
-- iPhoneOS toolchain loaded
-- Detected version of GNU GCC: 42 (402)
-- Looking for linux/videodev.h
-- Looking for linux/videodev.h - not found
-- Looking for linux/videodev2.h
-- Looking for linux/videodev2.h - not found
-- Looking for sys/videoio.h
-- Looking for sys/videoio.h - not found
-- Could NOT find JNI (missing: JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2)
--
-- General configuration for OpenCV 2.4.8 =====================================
-- Version control: unknown
--
-- Platform:
-- Host: Darwin 12.5.0 i386
-- Target: iOS
-- CMake: 2.8.9
-- CMake generator: Xcode
-- CMake build tool: /Applications/CMake 2.8-9.app/Contents/bin/cmakexbuild
-- Xcode: 5.0.2
--
-- C/C++:
-- Built as dynamic libs?: NO
-- C++ Compiler: /usr/bin/g++ (ver 4.2.1)
-- C++ flags (Release): -stdlib=libc++ -headerpad_max_install_names -fvisibility=hidden -fvisibility-inlines-hidden -fPIC -DNDEBUG -O3 -fomit-frame-pointer -ffast-math -DNDEBUG
-- C++ flags (Debug): -stdlib=libc++ -headerpad_max_install_names -fvisibility=hidden -fvisibility-inlines-hidden -fPIC -g -O0 -DDEBUG -D_DEBUG
-- C Compiler: /usr/bin/gcc
-- C flags (Release): -fPIC -O3 -DNDEBUG -DNDEBUG
-- C flags (Debug): -fPIC -g -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release):
-- Linker flags (Debug):
-- Precompiled headers: NO
--
-- OpenCV modules:
-- To be built: core flann imgproc highgui features2d calib3d ml nonfree objdetect video contrib legacy photo stitching videostab world
-- Disabled: -
-- Disabled by dependency: -
-- Unavailable: androidcamera dynamicuda gpu java ocl python superres ts
--
-- GUI:
-- Cocoa: YES
-- OpenGL support: NO
--
-- Media I/O:
-- ZLib: build (ver 1.2.7)
-- JPEG: build (ver 62)
-- PNG: build (ver 1.5.12)
-- TIFF: NO
-- JPEG 2000: NO
-- OpenEXR: NO
--
-- Video I/O:
-- AVFoundation: YES
-- QuickTime: NO
-- QTKit: NO
-- V4L/V4L2: NO/NO
--
-- Other third-party libraries:
-- Use IPP: NO
-- Use Eigen: NO
-- Use TBB: NO
-- Use OpenMP: NO
-- Use GCD YES
-- Use Concurrency NO
-- Use C=: NO
-- Use Cuda: NO
-- Use OpenCL: NO
--
-- Python:
-- Interpreter: /usr/bin/python (ver 2.7.2)
--
-- Java:
-- ant: NO
-- JNI: JAVA_INCLUDE_PATH-NOTFOUND JAVA_INCLUDE_PATH2-NOTFOUND /System/Library/Frameworks/JavaVM.framework/Headers
-- Java tests: NO
--
-- Documentation:
-- Build Documentation: NO
-- Sphinx: NO
-- PdfLaTeX compiler: NO
--
-- Tests and samples:
-- Tests: NO
-- Performance tests: NO
-- C/C++ Examples: NO
--
-- Install path: /Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/install
--
-- cvconfig.h is in: /Users/podlipensky/Sites/ios/build/iPhoneOS-arm64
-- -----------------------------------------------------------------
--
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/podlipensky/Sites/ios/build/iPhoneOS-arm64
User defaults from command line:
IDEBuildOperationMaxNumberOfConcurrentCompileTasks = 8
Build settings from command line:
ARCHS = arm64
IPHONEOS_DEPLOYMENT_TARGET = 6.0
SDKROOT = iphoneos7.0
Build Preparation
Build task concurrency set to 8 via user default IDEBuildOperationMaxNumberOfConcurrentCompileTasks
=== BUILD TARGET zlib OF PROJECT OpenCV WITH CONFIGURATION Release ===
Check dependencies
CompileC /Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/Objects-normal/arm64/gzwrite.o 3rdparty/zlib/gzwrite.c normal arm64 c com.apple.compilers.llvm.clang.1_0.compiler
cd /Users/podlipensky/Sites/opencv
setenv LANG en_US.US-ASCII
setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/Users/podlipensky/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/X11/bin:/usr/local/git/bin:/opt/local/bin:/Users/podlipensky/Downloads/arcanist/bin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x c -arch arm64 -fmessage-length=118 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit=0 -fcolor-diagnostics -Wno-trigraphs -fpascal-strings -O3 -Wno-missing-field-initializers -Wno-missing-prototypes -Wno-return-type -Wno-missing-braces -Wparentheses -Wswitch -Wno-unused-function -Wno-unused-label -Wno-unused-parameter -Wno-unused-variable -Wunused-value -Wno-empty-body -Wno-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wno-constant-conversion -Wno-int-conversion -Wno-bool-conversion -Wno-enum-conversion -Wshorten-64-to-32 -Wpointer-sign -Wno-newline-eof -DCMAKE_INTDIR=\"Release-iphoneos\" -DNO_FSEEKO -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -fstrict-aliasing -Wdeprecated-declarations -Wno-sign-conversion -miphoneos-version-min=6.0 -I/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/lib/Release/include -I/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib -I/Users/podlipensky/Sites/opencv/3rdparty/zlib -I/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64 -I/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/DerivedSources/arm64 -I/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/DerivedSources -Wmost -Wno-four-char-constants -Wno-unknown-pragmas -F/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/lib/Release -fPIC -fPIC -DNDEBUG -DNDEBUG -MMD -MT dependencies -MF /Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/Objects-normal/arm64/gzwrite.d --serialize-diagnostics /Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/Objects-normal/arm64/gzwrite.dia -c /Users/podlipensky/Sites/opencv/3rdparty/zlib/gzwrite.c -o /Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/Objects-normal/arm64/gzwrite.o
/Users/podlipensky/Sites/opencv/3rdparty/zlib/gzwrite.c:84:15: error: implicit declaration of function 'write' is
invalid in C99 [-Werror,-Wimplicit-function-declaration]
got = write(state->fd, strm->next_in, strm->avail_in);
^
/Users/podlipensky/Sites/opencv/3rdparty/zlib/gzwrite.c:84:15: note: did you mean 'fwrite'?
got = write(state->fd, strm->next_in, strm->avail_in);
^~~~~
fwrite
In file included from /Users/podlipensky/Sites/opencv/3rdparty/zlib/gzwrite.c:6:
In file included from /Users/podlipensky/Sites/opencv/3rdparty/zlib/gzguts.h:21:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/include/stdio.h:252:9: note:
'fwrite' declared here
size_t fwrite(const void * __restrict, size_t, size_t, FILE * __restrict) __DARWIN_ALIAS(fwrite);
^
/Users/podlipensky/Sites/opencv/3rdparty/zlib/gzwrite.c:561:9: error: implicit declaration of function 'close' is
invalid in C99 [-Werror,-Wimplicit-function-declaration]
if (close(state->fd) == -1)
^
2 errors generated.
CompileC /Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/Objects-normal/arm64/gzread.o 3rdparty/zlib/gzread.c normal arm64 c com.apple.compilers.llvm.clang.1_0.compiler
cd /Users/podlipensky/Sites/opencv
setenv LANG en_US.US-ASCII
setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/Users/podlipensky/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/X11/bin:/usr/local/git/bin:/opt/local/bin:/Users/podlipensky/Downloads/arcanist/bin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x c -arch arm64 -fmessage-length=118 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit=0 -fcolor-diagnostics -Wno-trigraphs -fpascal-strings -O3 -Wno-missing-field-initializers -Wno-missing-prototypes -Wno-return-type -Wno-missing-braces -Wparentheses -Wswitch -Wno-unused-function -Wno-unused-label -Wno-unused-parameter -Wno-unused-variable -Wunused-value -Wno-empty-body -Wno-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wno-constant-conversion -Wno-int-conversion -Wno-bool-conversion -Wno-enum-conversion -Wshorten-64-to-32 -Wpointer-sign -Wno-newline-eof -DCMAKE_INTDIR=\"Release-iphoneos\" -DNO_FSEEKO -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -fstrict-aliasing -Wdeprecated-declarations -Wno-sign-conversion -miphoneos-version-min=6.0 -I/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/lib/Release/include -I/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib -I/Users/podlipensky/Sites/opencv/3rdparty/zlib -I/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64 -I/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/DerivedSources/arm64 -I/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/DerivedSources -Wmost -Wno-four-char-constants -Wno-unknown-pragmas -F/Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/lib/Release -fPIC -fPIC -DNDEBUG -DNDEBUG -MMD -MT dependencies -MF /Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/Objects-normal/arm64/gzread.d --serialize-diagnostics /Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/Objects-normal/arm64/gzread.dia -c /Users/podlipensky/Sites/opencv/3rdparty/zlib/gzread.c -o /Users/podlipensky/Sites/ios/build/iPhoneOS-arm64/3rdparty/zlib/OpenCV.build/Release-iphoneos/zlib.build/Objects-normal/arm64/gzread.o
/Users/podlipensky/Sites/opencv/3rdparty/zlib/gzread.c:30:15: error: implicit declaration of function 'read' is
invalid in C99 [-Werror,-Wimplicit-function-declaration]
ret = read(state->fd, buf + *have, len - *have);
^
/Users/podlipensky/Sites/opencv/3rdparty/zlib/gzread.c:30:15: note: did you mean 'fread'?
ret = read(state->fd, buf + *have, len - *have);
^~~~
fread
In file included from /Users/podlipensky/Sites/opencv/3rdparty/zlib/gzread.c:6:
In file included from /Users/podlipensky/Sites/opencv/3rdparty/zlib/gzguts.h:21:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/include/stdio.h:245:9: note:
'fread' declared here
size_t fread(void * __restrict, size_t, size_t, FILE * __restrict);
^
/Users/podlipensky/Sites/opencv/3rdparty/zlib/gzread.c:586:11: error: implicit declaration of function 'close' is
invalid in C99 [-Werror,-Wimplicit-function-declaration]
ret = close(state->fd);
