No libclang.a after successfull build for iOS? - c++

I've extracted official llvm/clang sources for 3.7 release, did some minor patching (NSGetEnviron()), configured and build for iOS with cmake:
cmake ../llvm_37_ios \
-DCMAKE_INSTALL_PREFIX=/Volumes/Transcend/dev/src/llvm_37_ios_armv7_installed \
-DLLVM_ENABLE_TERMINFO=OFF \
-DLLVM_ENABLE_THREADS=OFF \
-DCMAKE_OSX_SYSROOT=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk \
-DCMAKE_C_FLAGS="-stdlib=libc++ -arch armv7 -mios-version-min=8.0 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk" \
-DCMAKE_CXX_FLAGS="-stdlib=libc++ -arch armv7 -mios-version-min=8.0 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk" \
-DCMAKE_CROSSCOMPILING=True \
-DLLVM_TABLEGEN=/Volumes/Transcend/dev/src/llvm_37_local_build/bin/llvm-tblgen \
-DCLANG_TABLEGEN=/Volumes/Transcend/dev/src/llvm_37_local_build/bin/clang-tblgen \
-DCMAKE_BUILD_TYPE=Release \
-DLLVM_TARGETS_TO_BUILD="ARM;X86"
However i did not find libclang.a but found another libclang*.a libs:
MBA-Anton:llvm_37_ios_armv7_build asmirnov$ find . -name "libclang.a"
MBA-Anton:llvm_37_ios_armv7_build asmirnov$ find . -name "libclang*.a"
./lib/libclangBasic.a
./lib/libclangLex.a
./lib/libclangASTMatchers.a
./lib/libclangParse.a
./lib/libclangDynamicASTMatchers.a
./lib/libclangAnalysis.a
./lib/libclangEdit.a
./lib/libclangRewrite.a
./lib/libclangAST.a
./lib/libclangDriver.a
./lib/libclangCodeGen.a
./lib/libclangSerialization.a
./lib/libclangRewriteFrontend.a
./lib/libclangSema.a
./lib/libclangFrontendTool.a
./lib/libclangARCMigrate.a
./lib/libclangToolingCore.a
./lib/libclangFrontend.a
./lib/libclangIndex.a
./lib/libclangTooling.a
./lib/libclangFormat.a
./lib/libclangStaticAnalyzerFrontend.a
./lib/libclangStaticAnalyzerCore.a
./lib/libclangStaticAnalyzerCheckers.a
For some reason shared library was created but static was not:
Linking CXX executable ../../../../bin/clang
[ 98%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CIndexDiagnostic.cpp.o
[ 98%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CIndexHigh.cpp.o
[ 98%] Built target clang
[ 98%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CIndexInclusionStack.cpp.o
[ 98%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CIndexUSRs.cpp.o
[ 98%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CIndexer.cpp.o
[ 98%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CXComment.cpp.o
[ 98%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CXCursor.cpp.o
[ 98%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CXCompilationDatabase.cpp.o
[ 98%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CXLoadedDiagnostic.cpp.o
[100%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CXSourceLocation.cpp.o
[100%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CXStoredDiagnostic.cpp.o
[100%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CXString.cpp.o
[100%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/CXType.cpp.o
[100%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/IndexBody.cpp.o
[100%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/IndexDecl.cpp.o
[100%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/IndexTypeSourceInfo.cpp.o
[100%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/Indexing.cpp.o
[100%] Building CXX object tools/clang/tools/libclang/CMakeFiles/libclang.dir/IndexingContext.cpp.o
Linking CXX shared library ../../../../lib/libclang.dylib
[100%] Built target libclang
Did i miss something or it's clang configuration bug?


libclang is built as a shared library by default because it simplifies consumption from other languages such as Python using FFI or similar mechanisms.
To build a static library use LIBCLANG_BUILD_STATIC CMake option defined in clang/tools/libclang/CMakeLists.txt:
option(LIBCLANG_BUILD_STATIC
"Build libclang as a static library (in addition to a shared one)" OFF)
You can use it as follows:
cmake -DLIBCLANG_BUILD_STATIC=ON ...

Related

NLOPT importing and using C++

I have been trying on and off for the past year to import the NLopt library into my work. I have been unsuccessful, and I am desperate for help.
Here is some of my CMAKE file
cmake_minimum_required(VERSION 3.21)
project(DynamicRRT)
set(CMAKE_CXX_STANDARD 17)
set(CONAN_CMAKE_CXX_STANDARD 17)
include_directories(/opt/homebrew/Cellar/eigen/3.4.0_1/include/eigen3/)
find_library(nlopt /Users/brandon/Extern/nlopt_install/ NAMES libnlopt nlopt NLopt)
include_directories(/Users/brandon/Extern/nlopt_install/include/ )
link_directories(/Users/brandon/Extern/nlopt_install/include/ )
#INCLUDE_DIRECTORIES(/Users/brandon/CLionProjects/nlopt/)
#INCLUDE_DIRECTORIES(/opt/homebrew/Cellar/nlopt/2.7.1/include/)
#include_directories(/usr/local/include/)
#add_library(nlopt /Users/brandon/Extern/nlopt_install/include)
#add_compile_options(-Wa,-mbig-obj)¡
add_executable(DynamicRRT main.cpp utilities.cpp utilities.h rrt_star.cpp rrt_star.h tree.cpp tree.h Nodes.cpp Nodes.h Obstacles.cpp Obstacles.h macro_rrt_star.cpp macro_rrt_star.h collisions.cpp collisions.h dynamic_rrt_star.cpp dynamic_rrt_star.h trajectory.cpp trajectory.h transformer.cpp transformer.h print_utilities.cpp print_utilities.h random_utilities.cpp random_utilities.h)# inverse_kinematics.cpp inverse_kinematics.h)# rrt_star.cpp rrt_star.h)#rrt_star_util.cpp rrt_star_util.h
target_link_libraries(DynamicRRT nlopt)
You can see that I've commented out a number of attempts at getting this imported. CMake does not throw any errors. However, if I try building the project, I get:
/Applications/CLion.app/Contents/bin/cmake/mac/bin/cmake --build /Users/brandonmeng/CLionProjects/DynamicRRT/cmake-build-default-gcc --target all -- -j 8
[ 14%] Building CXX object CMakeFiles/DynamicRRT.dir/Obstacles.cpp.o
[ 14%] Building CXX object CMakeFiles/DynamicRRT.dir/utilities.cpp.o
[ 35%] Building CXX object CMakeFiles/DynamicRRT.dir/rrt_star.cpp.o
[ 35%] Building CXX object CMakeFiles/DynamicRRT.dir/macro_rrt_star.cpp.o
[ 35%] Building CXX object CMakeFiles/DynamicRRT.dir/Nodes.cpp.o
[ 42%] Building CXX object CMakeFiles/DynamicRRT.dir/main.cpp.o
[ 50%] Building CXX object CMakeFiles/DynamicRRT.dir/tree.cpp.o
[ 57%] Building CXX object CMakeFiles/DynamicRRT.dir/collisions.cpp.o
[ 64%] Building CXX object CMakeFiles/DynamicRRT.dir/dynamic_rrt_star.cpp.o
[ 71%] Building CXX object CMakeFiles/DynamicRRT.dir/trajectory.cpp.o
[ 78%] Building CXX object CMakeFiles/DynamicRRT.dir/transformer.cpp.o
[ 85%] Building CXX object CMakeFiles/DynamicRRT.dir/print_utilities.cpp.o
[ 92%] Building CXX object CMakeFiles/DynamicRRT.dir/random_utilities.cpp.o
[100%] Linking CXX executable bin/DynamicRRT
ld: library not found for -lnlopt
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [bin/DynamicRRT] Error 1
make[1]: *** [CMakeFiles/DynamicRRT.dir/all] Error 2
make: *** [all] Error 2

link_directories(/Users/brandon/Extern/nlopt_install/include/ )
The library to link with is likely not in the include directory with the header files. It's more likely they're in a lib directory:
link_directories(/Users/brandon/Extern/nlopt_install/lib)

error with jrtplib 3.11

I need help. I try to build JRTPLIB 3.1.1 with SRTP 2.1.0 and OpenSSL 1.1.0 but got linker error while try to make JRTPLIB.
Dependencies:
Debian 9 (also tried on Ubuntu 16.04 LTS)
JRTPLIB v.3_1_11(from git+changes)
JTHREAD v.1_3_3 (from git)
LIBSRTP v.2_1_0 (by tag)
LIBSSL v.1_1_0 Stable (by branch)
Source changes:
JRTPLIB v.3_1_11 (from git): changed srtp to srtp2; link to lib source archive: https://drive.google.com/drive/folders/0B_Q0HXvHrCzabVpsSUp0TXNka1U?usp=sharing
Cmake settings (image cmake_JRTPLIB.JPG): https://drive.google.com/drive/folders/0B_Q0HXvHrCzabVpsSUp0TXNka1U?usp=sharing
Build:
1)OpenSSL:
build from source and also tried on a Virtual Machine to install libssl1.1 and libssl-dev by sudo apt-get install libssl1.1 libssl-dev)
2)libSRTP:
$./configure --enable-debug-logging --enable-log-stdout --enable-openssl
3)JTHREAD: build with cmake
4)JRTPLIB: Cmake config - see image cmake_JRTPLIB.JPG
$make
Error log:
Scanning dependencies of target jrtplib-static
[ 1%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtcpapppacket.cpp.o
[ 2%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtcpbyepacket.cpp.o
[ 3%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtcpcompoundpacket.cpp.o
[ 4%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtcpcompoundpacketbuilder.cpp.o
[ 4%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtcppacket.cpp.o
[ 5%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtcppacketbuilder.cpp.o
[ 6%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtcprrpacket.cpp.o
[ 7%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtcpscheduler.cpp.o
[ 8%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtcpsdesinfo.cpp.o
[ 8%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtcpsdespacket.cpp.o
[ 9%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtcpsrpacket.cpp.o
[ 10%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpcollisionlist.cpp.o
[ 11%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpdebug.cpp.o
[ 12%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtperrors.cpp.o
[ 12%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpinternalsourcedata.cpp.o
[ 13%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpipv4address.cpp.o
[ 14%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpipv6address.cpp.o
[ 15%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpipv4destination.cpp.o
[ 16%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpipv6destination.cpp.o
[ 16%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtplibraryversion.cpp.o
[ 17%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtppacket.cpp.o
[ 18%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtppacketbuilder.cpp.o
[ 19%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtppollthread.cpp.o
[ 20%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtprandom.cpp.o
[ 20%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtprandomrand48.cpp.o
[ 21%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtprandomrands.cpp.o
[ 22%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtprandomurandom.cpp.o
[ 23%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpsession.cpp.o
[ 24%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpsessionparams.cpp.o
[ 25%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpsessionsources.cpp.o
[ 25%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpsourcedata.cpp.o
[ 26%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpsources.cpp.o
[ 27%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtptimeutilities.cpp.o
[ 28%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpudpv4transmitter.cpp.o
[ 29%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpudpv6transmitter.cpp.o
[ 29%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpbyteaddress.cpp.o
[ 30%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpexternaltransmitter.cpp.o
[ 31%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpsecuresession.cpp.o
[ 32%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtpabortdescriptors.cpp.o
[ 33%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtptcpaddress.cpp.o
[ 33%] Building CXX object src/CMakeFiles/jrtplib-static.dir/rtptcptransmitter.cpp.o
[ 34%] Building CXX object src/CMakeFiles/jrtplib-static.dir/extratransmitters/rtpfaketransmitter.cpp.o
[ 35%] Linking CXX static library libjrtp.a
[ 35%] Built target jrtplib-static
Scanning dependencies of target jrtplib-shared
[ 35%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtcpapppacket.cpp.o
[ 36%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtcpbyepacket.cpp.o
[ 37%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtcpcompoundpacket.cpp.o
[ 38%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtcpcompoundpacketbuilder.cpp.o
[ 39%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtcppacket.cpp.o
[ 39%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtcppacketbuilder.cpp.o
[ 40%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtcprrpacket.cpp.o
[ 41%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtcpscheduler.cpp.o
[ 42%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtcpsdesinfo.cpp.o
[ 43%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtcpsdespacket.cpp.o
[ 44%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtcpsrpacket.cpp.o
[ 44%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpcollisionlist.cpp.o
[ 45%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpdebug.cpp.o
[ 46%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtperrors.cpp.o
[ 47%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpinternalsourcedata.cpp.o
[ 48%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpipv4address.cpp.o
[ 48%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpipv6address.cpp.o
[ 49%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpipv4destination.cpp.o
[ 50%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpipv6destination.cpp.o
[ 51%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtplibraryversion.cpp.o
[ 52%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtppacket.cpp.o
[ 52%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtppacketbuilder.cpp.o
[ 53%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtppollthread.cpp.o
[ 54%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtprandom.cpp.o
[ 55%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtprandomrand48.cpp.o
[ 56%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtprandomrands.cpp.o
[ 56%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtprandomurandom.cpp.o
[ 57%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpsession.cpp.o
[ 58%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpsessionparams.cpp.o
[ 59%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpsessionsources.cpp.o
[ 60%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpsourcedata.cpp.o
[ 60%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpsources.cpp.o
[ 61%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtptimeutilities.cpp.o
[ 62%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpudpv4transmitter.cpp.o
[ 63%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpudpv6transmitter.cpp.o
[ 64%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpbyteaddress.cpp.o
[ 64%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpexternaltransmitter.cpp.o
[ 65%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpsecuresession.cpp.o
[ 66%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtpabortdescriptors.cpp.o
[ 67%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtptcpaddress.cpp.o
[ 68%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/rtptcptransmitter.cpp.o
[ 69%] Building CXX object src/CMakeFiles/jrtplib-shared.dir/extratransmitters/rtpfaketransmitter.cpp.o
[ 69%] Linking CXX shared library libjrtp.so
[ 69%] Built target jrtplib-shared
Scanning dependencies of target example4
[ 69%] Building CXX object examples/CMakeFiles/example4.dir/example4.cpp.o
[ 70%] Linking CXX executable example4
[ 70%] Built target example4
Scanning dependencies of target example2
[ 71%] Building CXX object examples/CMakeFiles/example2.dir/example2.cpp.o
[ 72%] Linking CXX executable example2
[ 72%] Built target example2
Scanning dependencies of target example5
[ 73%] Building CXX object examples/CMakeFiles/example5.dir/example5.cpp.o
[ 74%] Linking CXX executable example5
[ 74%] Built target example5
Scanning dependencies of target example8
[ 75%] Building CXX object examples/CMakeFiles/example8.dir/example8.cpp.o
[ 76%] Linking CXX executable example8
[ 76%] Built target example8
Scanning dependencies of target example1
[ 77%] Building CXX object examples/CMakeFiles/example1.dir/example1.cpp.o
[ 77%] Linking CXX executable example1
[ 77%] Built target example1
Scanning dependencies of target example6
[ 78%] Building CXX object examples/CMakeFiles/example6.dir/example6.cpp.o
[ 78%] Linking CXX executable example6
[ 78%] Built target example6
Scanning dependencies of target example7
[ 79%] Building CXX object examples/CMakeFiles/example7.dir/example7.cpp.o
[ 80%] Linking CXX executable example7
/usr/local/lib/libsrtp2.a(datatypes.o): In function octet_string_set_to_zero': datatypes.c:(.text+0x1d91): undefined reference toOPENSSL_cleanse'
/usr/local/lib/libsrtp2.a(aes_icm_ossl.o): In function srtp_aes_icm_openssl_set_iv': aes_icm_ossl.c:(.text+0x77): undefined reference toEVP_EncryptInit_ex'
/usr/local/lib/libsrtp2.a(aes_icm_ossl.o): In function srtp_aes_icm_openssl_encrypt': aes_icm_ossl.c:(.text+0xe8): undefined reference toEVP_EncryptUpdate'
aes_icm_ossl.c:(.text+0x113): undefined reference to EVP_EncryptFinal_ex' /usr/local/lib/libsrtp2.a(aes_icm_ossl.o): In functionsrtp_aes_icm_openssl_context_init':
aes_icm_ossl.c:(.text+0x1f9): undefined reference to EVP_aes_128_ctr' aes_icm_ossl.c:(.text+0x20d): undefined reference toEVP_EncryptInit_ex'
aes_icm_ossl.c:(.text+0x231): undefined reference to EVP_aes_256_ctr' aes_icm_ossl.c:(.text+0x241): undefined reference toEVP_aes_192_ctr'
/usr/local/lib/libsrtp2.a(aes_icm_ossl.o): In function srtp_aes_icm_openssl_dealloc': aes_icm_ossl.c:(.text+0x26c): undefined reference toEVP_CIPHER_CTX_free'
/usr/local/lib/libsrtp2.a(aes_icm_ossl.o): In function srtp_aes_icm_openssl_alloc': aes_icm_ossl.c:(.text+0x36a): undefined reference toEVP_CIPHER_CTX_new'
/usr/local/lib/libsrtp2.a(aes_gcm_ossl.o): In function srtp_aes_gcm_openssl_get_tag': aes_gcm_ossl.c:(.text+0x18): undefined reference toEVP_Cipher'
aes_gcm_ossl.c:(.text+0x2c): undefined reference to EVP_CIPHER_CTX_ctrl' /usr/local/lib/libsrtp2.a(aes_gcm_ossl.o): In functionsrtp_aes_gcm_openssl_set_aad':
aes_gcm_ossl.c:(.text+0x71): undefined reference to EVP_CIPHER_CTX_ctrl' aes_gcm_ossl.c:(.text+0x81): undefined reference toEVP_Cipher'
/usr/local/lib/libsrtp2.a(aes_gcm_ossl.o): In function srtp_aes_gcm_openssl_context_init': aes_gcm_ossl.c:(.text+0xeb): undefined reference toEVP_aes_256_gcm'
aes_gcm_ossl.c:(.text+0x102): undefined reference to EVP_CipherInit_ex' aes_gcm_ossl.c:(.text+0x129): undefined reference toEVP_aes_128_gcm'
/usr/local/lib/libsrtp2.a(aes_gcm_ossl.o): In function srtp_aes_gcm_openssl_dealloc': aes_gcm_ossl.c:(.text+0x147): undefined reference toEVP_CIPHER_CTX_free'
/usr/local/lib/libsrtp2.a(aes_gcm_ossl.o): In function srtp_aes_gcm_openssl_encrypt': aes_gcm_ossl.c:(.text+0x19e): undefined reference toEVP_Cipher'
/usr/local/lib/libsrtp2.a(aes_gcm_ossl.o): In function srtp_aes_gcm_openssl_decrypt': aes_gcm_ossl.c:(.text+0x1e3): undefined reference toEVP_CIPHER_CTX_ctrl'
aes_gcm_ossl.c:(.text+0x1f9): undefined reference to EVP_Cipher' aes_gcm_ossl.c:(.text+0x208): undefined reference toEVP_Cipher'
/usr/local/lib/libsrtp2.a(aes_gcm_ossl.o): In function srtp_aes_gcm_openssl_set_iv': aes_gcm_ossl.c:(.text+0x293): undefined reference toEVP_CipherInit_ex'
aes_gcm_ossl.c:(.text+0x2c1): undefined reference to EVP_CIPHER_CTX_ctrl' aes_gcm_ossl.c:(.text+0x2db): undefined reference toEVP_CIPHER_CTX_ctrl'
aes_gcm_ossl.c:(.text+0x2f2): undefined reference to EVP_CIPHER_CTX_ctrl' /usr/local/lib/libsrtp2.a(aes_gcm_ossl.o): In functionsrtp_aes_gcm_openssl_alloc':
aes_gcm_ossl.c:(.text+0x3cb): undefined reference to EVP_CIPHER_CTX_new' /usr/local/lib/libsrtp2.a(hmac_ossl.o): In functionsrtp_hmac_start':
hmac_ossl.c:(.text+0xe): undefined reference to HMAC_Init_ex' /usr/local/lib/libsrtp2.a(hmac_ossl.o): In functionsrtp_hmac_update':
hmac_ossl.c:(.text+0x61): undefined reference to HMAC_Update' /usr/local/lib/libsrtp2.a(hmac_ossl.o): In functionsrtp_hmac_init':
hmac_ossl.c:(.text+0x8e): undefined reference to EVP_sha1' hmac_ossl.c:(.text+0xa2): undefined reference toHMAC_Init_ex'
/usr/local/lib/libsrtp2.a(hmac_ossl.o): In function srtp_hmac_dealloc': hmac_ossl.c:(.text+0xc9): undefined reference toHMAC_CTX_free'
/usr/local/lib/libsrtp2.a(hmac_ossl.o): In function srtp_hmac_compute': hmac_ossl.c:(.text+0x129): undefined reference toHMAC_Update'
hmac_ossl.c:(.text+0x142): undefined reference to HMAC_Final' /usr/local/lib/libsrtp2.a(hmac_ossl.o): In functionsrtp_hmac_alloc':
hmac_ossl.c:(.text+0x21c): undefined reference to `HMAC_CTX_new'
collect2: error: ld returned 1 exit status
examples/CMakeFiles/example7.dir/build.make:96: ошибка выполнения рецепта для цели «examples/example7»
make[2]: *** [examples/example7] Ошибка 1
CMakeFiles/Makefile2:415: ошибка выполнения рецепта для цели «examples/CMakeFiles/example7.dir/all»
make[1]: *** [examples/CMakeFiles/example7.dir/all] Ошибка 2
Makefile:127: ошибка выполнения рецепта для цели «all»
make: *** [all] Ошибка 2

Build libfreenect on ubuntu

I built the libfreenect (Open Kinect) library from sorce, but the libraries and headers are nowhere to be found. I have checked the paths specified in the configuration step, i.e., /usr/local, /usr/local/lib, usr/local/include.
Has anyone faced this problem with libfreenect or any other library?
~/libfreenect/build\ $ cmake -L .. -DBUILD_AUDIO=ON -DBUILD_CV=ON
-- The C compiler identification is GNU 4.8.2
-- The CXX compiler identification is GNU 4.8.2
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Operating system is Linux
-- Got System Processor x86_64
-- Linux x86_64 Detected
-- libfreenect will be installed to /usr/local
-- Headers will be installed to /usr/local/include/libfreenect
-- Libraries will be installed to /usr/local/lib
-- Found libusb-1.0:
-- - Includes: /usr/include/libusb-1.0
-- - Libraries: /usr/lib/x86_64-linux-gnu/libusb-1.0.so
-- Check if the system is big endian
-- Searching 16 bit integer
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of unsigned short
-- Check size of unsigned short - done
-- Using unsigned short
-- Check if the system is big endian - little endian
-- Found PythonInterp: python2 (found version "2.7.6")
-- Looking for include file pthread.h
-- Looking for include file pthread.h - found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so;/usr/lib/x86_64-linux-gnu/libXext.so
-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so;/usr/lib/x86_64-linux-gnu/libXext.so - found
-- Looking for gethostbyname
-- Looking for gethostbyname - found
-- Looking for connect
-- Looking for connect - found
-- Looking for remove
-- Looking for remove - found
-- Looking for shmat
-- Looking for shmat - found
-- Looking for IceConnectionNumber in ICE
-- Looking for IceConnectionNumber in ICE - found
-- Found X11: /usr/lib/x86_64-linux-gnu/libX11.so
-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libGL.so
-- Found GLUT: /usr/lib/x86_64-linux-gnu/libglut.so
-- Configuring done
-- Generating done
CMake Warning:
Manually-specified variables were not used by the project:
BUILD_AUDIO
-- Build files have been written to: /home/rohit/libfreenect/build
-- Cache values
BUILD_AS3_SERVER:BOOL=OFF
BUILD_CPACK_DEB:BOOL=OFF
BUILD_CPACK_RPM:BOOL=OFF
BUILD_CPACK_TGZ:BOOL=OFF
BUILD_CPP:BOOL=ON
BUILD_CV:BOOL=ON
BUILD_C_SYNC:BOOL=ON
BUILD_EXAMPLES:BOOL=ON
BUILD_FAKENECT:BOOL=ON
BUILD_OPENNI2_DRIVER:BOOL=OFF
BUILD_PYTHON:BOOL=OFF
BUILD_REDIST_PACKAGE:BOOL=ON
CMAKE_BUILD_TYPE:STRING=
CMAKE_INSTALL_PREFIX:PATH=/usr/local
LIBUSB_1_INCLUDE_DIR:PATH=/usr/include/libusb-1.0
LIBUSB_1_LIBRARY:FILEPATH=/usr/lib/x86_64-linux-gnu/libusb-1.0.so
OpenCV_DIR:PATH=/usr/local/share/OpenCV
~/libfreenect/build\ $ make
Scanning dependencies of target freenect
[ 2%] Building C object src/CMakeFiles/freenect.dir/core.c.o
[ 5%] Building C object src/CMakeFiles/freenect.dir/tilt.c.o
[ 8%] Building C object src/CMakeFiles/freenect.dir/cameras.c.o
[ 11%] Building C object src/CMakeFiles/freenect.dir/flags.c.o
[ 14%] Building C object src/CMakeFiles/freenect.dir/usb_libusb10.c.o
[ 17%] Building C object src/CMakeFiles/freenect.dir/registration.c.o
[ 20%] Building C object src/CMakeFiles/freenect.dir/audio.c.o
[ 23%] Building C object src/CMakeFiles/freenect.dir/loader.c.o
/home/rohit/libfreenect/src/loader.c:82:12: warning: ‘check_version_string’ defined but not used [-Wunused-function]
static int check_version_string(fnusb_dev* dev) {
^
Linking C shared library ../lib/libfreenect.so
[ 23%] Built target freenect
Scanning dependencies of target freenectstatic
[ 26%] Building C object src/CMakeFiles/freenectstatic.dir/core.c.o
[ 29%] Building C object src/CMakeFiles/freenectstatic.dir/tilt.c.o
[ 32%] Building C object src/CMakeFiles/freenectstatic.dir/cameras.c.o
[ 35%] Building C object src/CMakeFiles/freenectstatic.dir/flags.c.o
[ 38%] Building C object src/CMakeFiles/freenectstatic.dir/usb_libusb10.c.o
[ 41%] Building C object src/CMakeFiles/freenectstatic.dir/registration.c.o
[ 44%] Building C object src/CMakeFiles/freenectstatic.dir/audio.c.o
[ 47%] Building C object src/CMakeFiles/freenectstatic.dir/loader.c.o
/home/rohit/libfreenect/src/loader.c:82:12: warning: ‘check_version_string’ defined but not used [-Wunused-function]
static int check_version_string(fnusb_dev* dev) {
^
Linking C static library ../lib/libfreenect.a
[ 47%] Built target freenectstatic
Scanning dependencies of target freenect-camtest
[ 50%] Building C object examples/CMakeFiles/freenect-camtest.dir/camtest.c.o
Linking C executable ../bin/freenect-camtest
[ 50%] Built target freenect-camtest
Scanning dependencies of target freenect-chunkview
[ 52%] Building C object examples/CMakeFiles/freenect-chunkview.dir/chunkview.c.o
Linking C executable ../bin/freenect-chunkview
[ 52%] Built target freenect-chunkview
Scanning dependencies of target freenect_sync
[ 55%] Building C object wrappers/c_sync/CMakeFiles/freenect_sync.dir/libfreenect_sync.c.o
Linking C shared library ../../lib/libfreenect_sync.so
[ 55%] Built target freenect_sync
Scanning dependencies of target freenect-glpclview
[ 58%] Building C object examples/CMakeFiles/freenect-glpclview.dir/glpclview.c.o
Linking C executable ../bin/freenect-glpclview
[ 58%] Built target freenect-glpclview
Scanning dependencies of target freenect-glview
[ 61%] Building C object examples/CMakeFiles/freenect-glview.dir/glview.c.o
Linking C executable ../bin/freenect-glview
[ 61%] Built target freenect-glview
Scanning dependencies of target freenect-hiview
[ 64%] Building C object examples/CMakeFiles/freenect-hiview.dir/hiview.c.o
Linking C executable ../bin/freenect-hiview
[ 64%] Built target freenect-hiview
Scanning dependencies of target freenect-micview
[ 67%] Building C object examples/CMakeFiles/freenect-micview.dir/micview.c.o
Linking C executable ../bin/freenect-micview
[ 67%] Built target freenect-micview
Scanning dependencies of target freenect-regtest
[ 70%] Building C object examples/CMakeFiles/freenect-regtest.dir/regtest.c.o
Linking C executable ../bin/freenect-regtest
[ 70%] Built target freenect-regtest
Scanning dependencies of target freenect-regview
[ 73%] Building C object examples/CMakeFiles/freenect-regview.dir/regview.c.o
Linking C executable ../bin/freenect-regview
[ 73%] Built target freenect-regview
Scanning dependencies of target freenect-tiltdemo
[ 76%] Building C object examples/CMakeFiles/freenect-tiltdemo.dir/tiltdemo.c.o
Linking C executable ../bin/freenect-tiltdemo
[ 76%] Built target freenect-tiltdemo
Scanning dependencies of target freenect-wavrecord
[ 79%] Building C object examples/CMakeFiles/freenect-wavrecord.dir/wavrecord.c.o
Linking C executable ../bin/freenect-wavrecord
[ 79%] Built target freenect-wavrecord
Scanning dependencies of target fakenect
[ 82%] Building C object fakenect/CMakeFiles/fakenect.dir/fakenect.c.o
Linking C shared library ../lib/fakenect/libfreenect.so
[ 82%] Built target fakenect
Scanning dependencies of target fakenect-record
[ 85%] Building C object fakenect/CMakeFiles/fakenect-record.dir/record.c.o
Linking C executable ../bin/fakenect-record
[ 85%] Built target fakenect-record
Scanning dependencies of target freenect_sync_static
[ 88%] Building C object wrappers/c_sync/CMakeFiles/freenect_sync_static.dir/libfreenect_sync.c.o
Linking C static library ../../lib/libfreenect_sync.a
[ 88%] Built target freenect_sync_static
Scanning dependencies of target freenect-cpp_pcview
[ 91%] Building CXX object wrappers/cpp/CMakeFiles/freenect-cpp_pcview.dir/cpp_pc_view.cpp.o
Linking CXX executable ../../bin/freenect-cpp_pcview
[ 91%] Built target freenect-cpp_pcview
Scanning dependencies of target freenect-cppview
[ 94%] Building CXX object wrappers/cpp/CMakeFiles/freenect-cppview.dir/cppview.cpp.o
Linking CXX executable ../../bin/freenect-cppview
[ 94%] Built target freenect-cppview
Scanning dependencies of target freenect_cv
[ 97%] Building C object wrappers/opencv/CMakeFiles/freenect_cv.dir/libfreenect_cv.c.o
Linking CXX shared library ../../lib/libfreenect_cv.so
[ 97%] Built target freenect_cv
Scanning dependencies of target freenect-cvdemo
[100%] Building C object wrappers/opencv/CMakeFiles/freenect-cvdemo.dir/cvdemo.c.o
Linking CXX executable ../../bin/freenect-cvdemo
[100%] Built target freenect-cvdemo

To find where your library has been built, from the build directory call:
find -name \*.so (dynamic libraries, that seems to be the case) or find -name \*.a (static libraries).
Anyway, if you do sudo make install, your libraries will be installed in /usr/local/lib as stated in your cmake output.

can not find <execinfo.h> when setup mlpack

I tried to install mlpack in cygwin and I have already installed armadillo, but I encountered following problems:
After running cmake ../ I run the make command and here is the process:
$ make
Scanning dependencies of target mlpack_headers
Moving header files to include/mlpack/
[ 0%] Built target mlpack_headers
Scanning dependencies of target mlpack
[ 0%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/dists/discrete_distribution.cpp.o
[ 1%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/dists/gaussian_distribution.cpp.o
[ 2%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/dists/laplace_distribution.cpp.o
[ 3%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/kernels/epanechnikov_kernel.cpp.o
[ 4%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/kernels/pspectrum_string_kernel.cpp.o
[ 5%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/math/lin_alg.cpp.o
[ 6%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/math/random.cpp.o
[ 6%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/optimizers/aug_lagrangian/aug_lagrangian_test_functions.cpp.o
[ 7%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/optimizers/lbfgs/test_functions.cpp.o
[ 8%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/optimizers/lrsdp/lrsdp.cpp.o
[ 9%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/optimizers/lrsdp/lrsdp_function.cpp.o
[ 10%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/optimizers/sgd/test_function.cpp.o
[ 11%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/tree/cosine_tree/cosine_tree.cpp.o
[ 12%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/tree/mrkd_statistic.cpp.o
[ 12%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/util/cli.cpp.o
[ 13%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/util/cli_deleter.cpp.o
[ 14%] Building CXX object src/mlpack/CMakeFiles/mlpack.dir/core/util/log.cpp.o
/home/Administrator/mlpack-1.0.11/mlpack-1.0.11/src/mlpack/core/util/log.cpp:24:24: 致命错误：execinfo.h：No such file or directory
#include <execinfo.h>
编译中断。
src/mlpack/CMakeFiles/mlpack.dir/build.make:425: recipe for target 'src/mlpack/CMakeFiles/mlpack.dir/core/util/log.cpp.o' failed
make[2]: * [src/mlpack/CMakeFiles/mlpack.dir/core/util/log.cpp.o] Error 1
CMakeFiles/Makefile2:119: recipe for target 'src/mlpack/CMakeFiles/mlpack.dir/all' failed
make[1]: * [src/mlpack/CMakeFiles/mlpack.dir/all] Error 2
Makefile:116: recipe for target 'all' failed
make: * [all] Error 2
I don't know how to deal with this problem.

Cygwin's gnulib does not provide execinfo.h, possibly due to compatibility issues with the underlying (Windows) system.
From the gnulib documentation:
This header file is missing on some platforms: Mac OS X 10.3, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin, mingw, MSVC 9, Interix 3.5, BeOS.
You may want to try a WinAPI function like CaptureStackBackTrace instead.

How to install OpenCV on OS X Lion using brew

i'm trying to install opencv libraries using brew.
i tried:
sudo brew install opencv
this is the output:
user$ sudo brew install opencv
sudo: /var/db/sudo writable by non-owner (040777), should be mode 0700
WARNING: Improper use of the sudo command could lead to data loss
or the deletion of important system files. Please double-check your
typing when using sudo. Type "man sudo" for more information.
To proceed, enter your password, or type Ctrl-C to abort.
Password:
/usr/local/Library/Homebrew/global.rb:64: warning: Insecure world writable dir /opt/local in PATH, mode 040777
/usr/local/bin/brew:74: warning: Insecure world writable dir /opt/local in PATH, mode 040777
Warning: It appears you have MacPorts or Fink installed.
Software installed with other package managers causes known problems for
Homebrew. If a formula fails to build, uninstall MacPorts/Fink and try again.
/usr/local/Library/Homebrew/build.rb:7: warning: Insecure world writable dir /opt/local in PATH, mode 040777
==> Downloading http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.3.1/OpenCV-2.3.1a.tar.bz2
File already downloaded in /Library/Caches/Homebrew
==> Patching
patching file modules/highgui/src/grfmt_exr.hpp
==> cmake . -DCMAKE_INSTALL_PREFIX='/usr/local/Cellar/opencv/2.3.1a' -DCMAKE_BUILD_TYPE=None -Wno-dev -DPYTHON_LIBRARY='/System/Library/Frameworks/Python.framework/Versions/2.7/Python' -DP
==> make
Scanning dependencies of target opencv_core
[ 1%] [ 1%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/arithm.o
Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/alloc.o
[ 1%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/array.o
[ 1%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/cmdparser.o
[ 1%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/convert.o
[ 2%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/copy.o
[ 2%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/datastructs.o
[ 2%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/drawing.o
[ 2%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/dxt.o
[ 3%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/lapack.o
[ 3%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/mathfuncs.o
[ 3%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/matmul.o
[ 3%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/matop.o
[ 4%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/matrix.o
[ 4%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/out.o
[ 4%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/persistence.o
[ 4%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/precomp.o
[ 5%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/rand.o
[ 5%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/stat.o
[ 5%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/system.o
[ 5%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/tables.o
Linking CXX shared library ../../lib/libopencv_core.dylib
[ 5%] Built target opencv_core
Scanning dependencies of target opencv_flann
[ 6%] Building CXX object modules/flann/CMakeFiles/opencv_flann.dir/src/flann.o
Scanning dependencies of target opencv_imgproc
[ 6%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/accum.o
In file included from /tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/src/flann.cpp:29:
In file included from /tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/src/precomp.hpp:17:
In file included from /tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/include/opencv2/flann/all_indices.h:42:
/tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/include/opencv2/flann/lsh_index.h:89:81: error: no matching constructor for initialization of 'cvflann::LshIndexParams'
LshIndex(const Matrix<ElementType>& input_data, const IndexParams& params = LshIndexParams(),
^
/tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/include/opencv2/flann/lsh_index.h:59:5: note: candidate constructor not viable: requires 3 arguments, but 0 were provided
LshIndexParams(unsigned int table_number, unsigned int key_size, unsigned int multi_probe_level)
^
/tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/include/opencv2/flann/lsh_index.h:57:8: note: candidate constructor (the implicit copy constructor) not viable: requires 1 argument, but 0 were provided
struct LshIndexParams : public IndexParams
^
In file included from /tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/src/flann.cpp:29:
In file included from /tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/src/precomp.hpp:10:
In file included from /tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/include/opencv2/flann/index_testing.h:39:
In file included from /tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/include/opencv2/flann/nn_index.h:39:
In file included from /tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/include/opencv2/flann/params.h:33:
/tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/include/opencv2/flann/any.h:88:67: error: call to function 'operator<<' that is neither visible in the template definition nor found by argument-dependent lookup
virtual void print(std::ostream& out, void* const* src) { out << *reinterpret_cast<T const*>(*src); }
^
/tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/include/opencv2/flann/any.h:136:44: note: in instantiation of member function 'cdiggins::anyimpl::big_any_policy<cdiggins::anyimpl::empty_any>::print' requested here
static typename choose_policy<T>::type policy;
^
/tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/include/opencv2/flann/any.h:159:18: note: in instantiation of function template specialization 'cdiggins::anyimpl::get_policy<cdiggins::anyimpl::empty_any>' requested here
: policy(anyimpl::get_policy<anyimpl::empty_any>()), object(NULL)
^
/tmp/homebrew-opencv-2.3.1a-dWXV/OpenCV-2.3.1/modules/flann/include/opencv2/flann/any.h:276:22: note: 'operator<<' should be declared prior to the call site or in namespace 'cdiggins::anyimpl'
inline std::ostream& operator <<(std::ostream& out, const any& any_val)
^
2 errors generated.
make[2]: *** [modules/flann/CMakeFiles/opencv_flann.dir/src/flann.o] Error 1
make[1]: *** [modules/flann/CMakeFiles/opencv_flann.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[ 7%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/approx.o
[ 7%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/canny.o
[ 7%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/color.o
[ 7%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/contours.o
[ 8%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/convhull.o
[ 8%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/corner.o
[ 8%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/cornersubpix.o
[ 8%] [ 9%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/deriv.o
Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/distransform.o
[ 9%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/emd.o
[ 9%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/featureselect.o
[ 9%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/featuretree.o
[ 10%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/filter.o
[ 10%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/floodfill.o
[ 10%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/geometry.o
[ 10%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/grabcut.o
[ 11%] Building CXX object modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/histogram.o
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make: *** [all] Error 2
CMakeCache.txt was copied to /Users/turchijacopo/Library/Logs/Homebrew
==> Exit Status: 2
http://github.com/mxcl/homebrew/blob/master/Library/Formula/opencv.rb#L76
==> Environment
HOMEBREW_VERSION: 0.8.1
HEAD: 3b771d09e48f4dfa88ef4c5d32f3b84ca2ae18ec
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
Hardware: dual-core 64-bit penryn
OS X: 10.7.3
Kernel Architecture: x86_64
Xcode: 4.3.1
GCC-4.0: N/A
GCC-4.2: N/A
LLVM: build 2336
Clang: 3.0 build 211
MacPorts or Fink? /opt/local/bin/port
X11: /usr/X11
System Ruby: 1.8.7-249
/usr/bin/ruby => /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
Which Perl: /usr/bin/perl
Which Python: /usr/bin/python
Which Ruby: /usr/bin/ruby => /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
==> Build Flags
CC: /usr/bin/clang
CXX: /usr/bin/clang++ => /usr/bin/clang
LD: /usr/bin/clang
CFLAGS: -Os -w -pipe -march=native -Qunused-arguments
CXXFLAGS: -Os -w -pipe -march=native -Qunused-arguments
MAKEFLAGS: -j2
Error: Failed executing: make
These existing issues may help you:
https://github.com/mxcl/homebrew/issues/10862
Otherwise, please report the bug:
https://github.com/mxcl/homebrew/wiki/checklist-before-filing-a-new-issue
what can i do ?

You can start by reading the error message:
These existing issues may help you:
https://github.com/mxcl/homebrew/issues/10862
That's probably not your problem, but one idea is to try to install OpenCV 32-bits:
brew install opencv --32-bit
And if that doesn't work:
please report the bug:
https://github.com/mxcl/homebrew/wiki/checklist-before-filing-a-new-issue
You can always download OpenCV source code and compile it yourself. It's what I did on Mac OS X.