CMake install can't find library and points to wrong compiler version - linux

Question

linux noob here- will appreciate any kind of help.
Some background:
I'm trying to build a program from source on RHEL 6.5, the dependencies for this program are specifically:
GCC 4.7 and above (for C++ 11 support)
CMake 2.8.9+
we already had GCC 4.4.7 installed in /usr/libexec/gcc, so our linux person built and installed the new version in /usr/local/libexec/gcc (version 4.9)
We didn't have CMake so I installed in from scratch by unizipping the source in /usr/local and following the directions from here:
http://www.cmake.org/install/
./bootstrap
make
make install
so far so good and in the CMakeOutput.log of the CMake it is correctly pointing to the new GCC's path, [COMPILER PATH=/usr/local/libexec/gcc/.../4.9.2/
and I did have to copy a .so file from /usr/lib64 to /usr/local/lib64 in order to successfully bootstrap/make it but I don't think that's the source of my problem.
The Problem:
Now here's what i'm having trouble with: so when I finally try to build this program using "cmake ."
I get the following issues:
-- The C compiler identification is GNU 4.4.7
-- Performing Test COMPILER_SUPPORTS_CXX11 - Failed
The compiler identification should be version 4.9 and the Test should've succeeded but it did not...
-- Could NOT find ZLIB (missing: ZLIB_LIBRARY ZLIB_INCLUDE_DIR)
-- Could NOT find PNG (missing: PNG_LIBRARY PNG_PNG INCLUDE_ DIR)
Cmake has the FindPNG cmake module file in /usr/local/cmake-3.0.2/Modules but it doesn't seem to know where it is, I tried copying just the FindPNG.cmake file into the local cmake directory of the program and I just kept getting missing module files one after another...
Now- I think all these errors could just be a result of something not pointing to something correctly, maybe not setting environment variables for something, missing or wrong CMake commands / variables in the CMakeList file or whatever but I have spent a quite amount of time trying to fix it trying different approaches but just couldn't figure it out...any help will be greatly appreciated!!!
Here's the top level CMakeLists.txt of the program I'm trying to build:
cmake_minimum_required(VERSION 2.8)
project(COLLADA2GLTF)
if (NOT WIN32)
#http://www.guyrutenberg.com/2014/01/05/enabling-c11-c0x-in-cmake/
include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
if(COMPILER_SUPPORTS_CXX11)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
message("-- C++11 Enabled")
elseif(COMPILER_SUPPORTS_CXX0X)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
message("-- C++0x Enabled")
else()
message(STATUS "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
endif()
endif()
set(USE_OPEN3DGC "ON")
set(WITH_IN_SOURCE_BUILD "ON")
set(COLLADA2GLTF_BINARY_DIR, COLLADA2GLTF_SOURCE_DIR)
set(BUILD_SHARED_LIBS "OFF")
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
include(GetGitRevisionDescription)
get_git_head_revision(GIT_REFSPEC GIT_SHA1)
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/GitSHA1.cpp.in" "${CMAKE_CURRENT_BINARY_DIR}/GitSHA1.cpp" #ONLY)
set(TARGET_LIBS GeneratedSaxParser_static OpenCOLLADABaseUtils_static UTF_static ftoa_static MathMLSolver_static OpenCOLLADASaxFrameworkLoader_static OpenCOLLADAFramework_static buffer_static)
if (NOT WIN32)
set(CMAKE_FIND_LIBRARY_SUFFIXES .so .a .dylib)
endif()
# Lets libxml2 work in a shared library
add_definitions(-DLIBXML_STATIC_FOR_DLL)
IF(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64")
ADD_DEFINITIONS(-fPIC)
ENDIF(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64")
include_directories(${COLLADA2GLTF_SOURCE_DIR})
.......
include_directories(${COLLADA2GLTF_SOURCE_DIR}/dependencies/OpenCOLLADA/COLLADABaseUtils/include)
include_directories(${COLLADA2GLTF_SOURCE_DIR}/dependencies/OpenCOLLADA/COLLADASaxFrameworkLoader/include)
include_directories(${COLLADA2GLTF_SOURCE_DIR}/dependencies/OpenCOLLADA/GeneratedSaxParser/include)
if (WIN32)
include_directories(${COLLADA2GLTF_SOURCE_DIR}/dependencies/misc)
endif()
if (USE_OPEN3DGC)
add_definitions( -DUSE_OPEN3DGC )
include_directories(${COLLADA2GLTF_SOURCE_DIR}/extensions/o3dgc-compression)
include_directories(${COLLADA2GLTF_SOURCE_DIR}/dependencies/o3dgc/src)
include_directories(${COLLADA2GLTF_SOURCE_DIR}/dependencies/o3dgc/src/o3dgc_common_lib/inc)
include_directories(${COLLADA2GLTF_SOURCE_DIR}/dependencies/o3dgc/src/o3dgc_encode_lib/inc)
include_directories(${COLLADA2GLTF_SOURCE_DIR}/dependencies/o3dgc/src/o3dgc_decode_lib/inc)
endif()
find_package(PNG)
if (PNG_FOUND)
include_directories(${PNG_INCLUDE_DIR})
include_directories(${ZLIB_INCLUDE_DIR})
add_definitions(-DUSE_LIBPNG)
else()
message(WARNING "libpng or one of its dependencies couldn't be found. Transparency may not be correctly detected.")
endif()
link_directories(${COLLADA2GLTF_BINARY_DIR}/lib)
if (WIN32)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
add_definitions(-DWIN32)
add_definitions(-EHsc)
endif()
add_subdirectory(dependencies/OpenCOLLADA)
if (USE_OPEN3DGC)
add_subdirectory(dependencies/o3dgc/src)
endif()
set(GLTF_SOURCES
COLLADA2GLTFWriter.h
COLLADA2GLTFWriter.cpp
......
assetModifiers/GLTFFlipUVModifier.cpp
${CMAKE_CURRENT_BINARY_DIR}/GitSHA1.cpp
GitSHA1.h)
if (USE_OPEN3DGC)
LIST(APPEND GLTF_SOURCES
extensions/o3dgc-compression/GLTF-Open3DGC.cpp
extensions/o3dgc-compression/GLTF-Open3DGC.h)
endif()
option(CONVERT_SHARED "CONVERT_SHARED" OFF)
if (CONVERT_SHARED)
add_library(collada2gltfConvert SHARED ${GLTF_SOURCES})
#Make sure the dll is in the same directory as the executable
if (WIN32)
set_target_properties(collada2gltfConvert PROPERTIES RUNTIME_OUTPUT_DIRECTORY "bin")
endif()
else()
add_library(collada2gltfConvert STATIC ${GLTF_SOURCES})
add_definitions(-DSTATIC_COLLADA2GLTF)
endif()
if (PNG_FOUND)
LIST(APPEND TARGET_LIBS ${PNG_LIBRARY} ${ZLIB_LIBRARY})
endif()
if (USE_OPEN3DGC)
LIST(APPEND TARGET_LIBS o3dgc_common_lib o3dgc_enc_lib o3dgc_dec_lib)
endif()
IF("${CMAKE_SYSTEM}" MATCHES "Linux")
LIST(APPEND TARGET_LIBS rt)
endif("${CMAKE_SYSTEM}" MATCHES "Linux")
target_link_libraries (collada2gltfConvert ${TARGET_LIBS})
set(GLTF_EXE_SOURCES main.cpp
${CMAKE_CURRENT_BINARY_DIR}/GitSHA1.cpp
GitSHA1.h)
if (WIN32)
LIST(APPEND GLTF_EXE_SOURCES ${COLLADA2GLTF_SOURCE_DIR}/dependencies/misc/getopt_long.c ${COLLADA2GLTF_SOURCE_DIR}/dependencies/misc/getopt.c ${COLLADA2GLTF_SOURCE_DIR}/dependencies/misc/getopt.h)
endif()
add_executable(collada2gltf ${GLTF_EXE_SOURCES})
target_link_libraries (collada2gltf collada2gltfConvert)

Answer 1

I guess that you're just facing the problem of unsatisfied dependencies. RHEL/CentOS 6 is pretty old distribution with an old kernel and applications; its recent releases are distributed with deprecated packages (like in your case) due to the needs of the backward compatibility. So is there any significant reason for you to use the one?
I spend one year in the project where we were developing software under RHEL 6.4 and I would suggest that you set yourself an impossible goal: you need to install to your OS not just a compiler, but also all of its libraries (for instance, actual C++ standard library .so etc.) and headers. Since these versions are not provided in you distro, you'll face difficulties due to the presence of same but differing libraries. Since all system software relies on to the old libraries, your manipulation can crash your system.
However, in case if you want to continue, you can try to install missing dependencies ZLIB and PNG with these commands (just a suggestion):
yum install zlib-devel libpng-devel
But definitly I would suggest you to save your time and deploy some fresh distro: CentOS 7 (if you want server) or Fedora 21 (will be released tommorow).