Hi,
I am attempting to build OSG for iOS 4.3 using the latest source from trunk.
My build environment is CMake 2.8.5 on Mac OS X 10.7 Lion, with all OSG
dependencies installed via MacPorts.
My CMake build environment works for other projects, ex. OGRE for iOS.
To build OSG, I am using CMake like this:
Code:
cmake -G Xcode \
-D OSG_BUILD_PLATFORM_IPHONE:BOOL=ON \
-D CMAKE_CXX_FLAGS:STRING="-ftree-vectorize -fvisibility-inlines-hidden
-mno-thumb -arch armv6 -pipe -no-cpp-precomp -miphoneos-version-min=3.1
-mno-thumb" \
-D BUILD_OSG_APPLICATIONS:BOOL=OFF \
-D OSG_BUILD_FRAMEWORKS:BOOL=OFF \
-D OSG_WINDOWING_SYSTEM:STRING=IOS \
-D OSG_BUILD_PLATFORM_IPHONE:BOOL=ON \
-D CMAKE_OSX_ARCHITECTURES:STRING="armv6;armv7" \
-D
CMAKE_OSX_SYSROOT:STRING=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk
\
-D OSG_GL1_AVAILABLE:BOOL=OFF \
-D OSG_GL2_AVAILABLE:BOOL=OFF \
-D OSG_GLES1_AVAILABLE:BOOL=ON \
-D OSG_GL_DISPLAYLISTS_AVAILABLE:BOOL=OFF \
-D OSG_GL_FIXED_FUNCTION_AVAILABLE:BOOL=ON \
-D OSG_GL_LIBRARY_STATIC:BOOL=OFF \
-D OSG_GL_MATRICES_AVAILABLE:BOOL=ON \
-D OSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE:BOOL=ON \
-D OSG_GL_VERTEX_FUNCS_AVAILABLE:BOOL=OFF \
-D DYNAMIC_OPENSCENEGRAPH:BOOL=OFF \
-D DYNAMIC_OPENTHREADS:BOOL=OFF \
my\path\to\OSG
CMake fails with the following CMakeError.log:
Code:
Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp"
failed.
Compiler: /usr/bin/g++
Build flags:
-ftree-vectorize;-fvisibility-inlines-hidden;-mno-thumb;-arch;armv6;-pipe;-no-cpp-precomp;-miphoneos-version-min=3.1;-mno-thumb
Id flags: -c
The output was:
255
llvm-g++-4.2: error trying to exec
'/usr/bin/../llvm-gcc-4.2/bin/arm-apple-darwin11-llvm-g++-4.2': execvp: No such
file or directory
Determining if the C compiler works failed with the following output:
Change Dir: /Users/Joe/SDKs/OpenSceneGraph/trunk/build/iOS/CMakeFiles/CMakeTmp
Run Build Command:/Applications/CMake\ 2.8-5.app/Contents/bin/cmakexbuild
-project CMAKE_TRY_COMPILE.xcodeproj build -target cmTryCompileExec
-configuration Debug
** BUILD FAILED **
The following build commands failed:
Check dependencies
(1 failure)
=== BUILD NATIVE TARGET cmTryCompileExec OF PROJECT CMAKE_TRY_COMPILE WITH
CONFIGURATION Debug ===
Check dependencies
target specifies product type 'com.apple.product-type.tool', but there's no
such product type for the 'iphoneos' platform
As the log indicates, CMake is looking for:
Code:
/usr/llvm-gcc-4.2/bin/arm-apple-darwin11-llvm-g++-4.2
which does not exist. (Also, iOS 4.3 corresponds to Darwin 10, not Darwin 11.)
For comparison, note that the following does exist:
Code:
/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/arm-apple-darwin10-llvm-g++-4.2
I tried using a symlink to trick CMake into using the latter file. However, in
that case, CMake fails with the following CMakeError.log:
Code:
Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp"
failed.
Compiler: /usr/bin/g++
Build flags:
-ftree-vectorize;-fvisibility-inlines-hidden;-mno-thumb;-arch;armv6;-pipe;-no-cpp-precomp;-miphoneos-version-min=3.1;-mno-thumb
Id flags:
The output was:
1
ld: library not found for -lcrt1.3.1.o
collect2: ld returned 1 exit status
Determining if the C compiler works failed with the following output:
Change Dir: /Users/Joe/SDKs/OpenSceneGraph/trunk/build/iOS/CMakeFiles/CMakeTmp
Run Build Command:/Applications/CMake\ 2.8-5.app/Contents/bin/cmakexbuild
-project CMAKE_TRY_COMPILE.xcodeproj build -target cmTryCompileExec
-configuration Debug
** BUILD FAILED **
The following build commands failed:
Check dependencies
(1 failure)
=== BUILD NATIVE TARGET cmTryCompileExec OF PROJECT CMAKE_TRY_COMPILE WITH
CONFIGURATION Debug ===
Check dependencies
target specifies product type 'com.apple.product-type.tool', but there's no
such product type for the 'iphoneos' platform
Please advise.
Thanks very much,
Joe[/code]
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=42085#42085
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