cross compiling an application in c++ on yocto which has scons build system

Question

I am trying to compile an application/project which is written in c/c++ and has scons build system on yocto. I wrote a recipe file that leverages scons already written code. I exported a few environment variables (like libpath, cppflags, cpppath etc) from yocto side to scons (like sysroot path for providing standard header files and libraries). This works fine till compilation but as soon as the linking starts, it fails with error:-

| x86_64-agl-linux-g++ -o variant_debug/BaseTools/libCXLBaseTools.so -shared 
variant_debug/BaseTools/src/gtIAllocationFailureObserver.os
variant_debug/BaseTools/src/gtIAssertionFailureHandler.os
variant_debug/BaseTools/src/gtErrorString.os
variant_debug/BaseTools/src/gtList.os
variant_debug/BaseTools/src/gtSingeltonsDelete.os
variant_debug/BaseTools/src/gtStringTokenizer.os
-L/home/agl-embedded/agl_native/build/tmp/work/corei7-64-agl-linux/tools/1.0-r0/recipe-sysroot/usr/lib
-L/home/agl-embedded/agl_native/build/tmp/work/corei7-64-agl-linux/tools/1.0-r0/recipe-sysroot/usr/lib/x86_64-agl-linux/11.4.0
-L/home/agl-embedded/agl_native/external/poky/meta/recipes-devtools/tools/Tools/Profiler/Output_x86_64/debug/bin
| /home/agl-embedded/agl_native/build/tmp/work/corei7-64-agl-linux/tools/1.0-r0/recipe-sysroot-native/usr/bin/x86_64-agl-linux/../../libexec/x86_64-agl-linux/gcc/x86_64-agl-linux/11.4.0/ld: cannot find crti.o: No such file or directory
| /home/agl-embedded/agl_native/build/tmp/work/corei7-64-agl-linux/tools/1.0-r0/recipe-sysroot-native/usr/bin/x86_64-agl-linux/../../libexec/x86_64-agl-linux/gcc/x86_64-agl-linux/11.4.0/ld: cannot find crtbeginS.o: No such file or directory
| /home/agl-embedded/agl_native/build/tmp/work/corei7-64-agl-linux/tools/1.0-r0/recipe-sysroot-native/usr/bin/x86_64-agl-linux/../../libexec/x86_64-agl-linux/gcc/x86_64-agl-linux/11.4.0/ld: cannot find /usr/lib/libmvec.so.1: No such file or directory
| collect2: error: ld returned 1 exit status
| scons: *** [variant_debug/BaseTools/libCXLBaseTools.so] Error 1
| scons: building terminated because of errors.
| *** ERROR during the build of this subcomponent ***

Recipe file:-

DESCRIPTION = "Build Project" LICENSE = "CLOSED"

SRC_URI = "file://project.tar.gz" inherit scons

do_compile:prepend() {
    export SYSROOT="${STAGING_DIR_TARGET}"
    export LDFLAGS="${LDFLAGS}"
    export CFLAGS="${CFLAGS}"
}

do_compile() {
    ~/agl_native/external/poky/meta/recipes-devtools/tools/Tools/Profiler/Build/Linux/./build.sh dbg
}

Could somebody help me understand what am I missing and why am I getting this error and any possible solution? Any help would be highly appreciated.

Note: I am fairly new to Yocto. Please let me know if you need more information.

I added Path which has missing c runtime libraries in the "LIBPATH". My code to add the above path in SConstruct:-

sysroot_path = os.environ.get('SYSROOT', '')
env.Append(CPPPATH=[
    sysroot_path + '/usr/include',
    sysroot_path + '/usr/include/c++/11.4.0',
    sysroot_path + '/usr/include/c++/11.4.0/x86_64-agl-linux',
    ])

env.Append(LIBPATH=[
    sysroot_path + '/usr/lib',
    sysroot_path + '/usr/lib/x86_64-agl-linux/11.4.0',
    ])