diff --git a/mesonbuild/compilers/c.py b/mesonbuild/compilers/c.py
index d9d81d68b..464756250 100644
--- a/mesonbuild/compilers/c.py
+++ b/mesonbuild/compilers/c.py
@@ -231,10 +231,11 @@ class PGICCompiler(PGICompiler, CCompiler):
 
 class ElbrusCCompiler(GnuCCompiler, ElbrusCompiler):
     def __init__(self, exelist, version, for_machine: MachineChoice,
-                 is_cross, info: 'MachineInfo', exe_wrapper=None, defines=None, **kwargs):
+                 is_cross, info: 'MachineInfo', exe_wrapper=None,
+                 defines=None, **kwargs):
         GnuCCompiler.__init__(self, exelist, version, for_machine, is_cross,
                               info, exe_wrapper, defines, **kwargs)
-        ElbrusCompiler.__init__(self, defines)
+        ElbrusCompiler.__init__(self)
 
     # It does support some various ISO standards and c/gnu 90, 9x, 1x in addition to those which GNU CC supports.
     def get_options(self):
diff --git a/mesonbuild/compilers/cpp.py b/mesonbuild/compilers/cpp.py
index a09c6112e..443a9ee18 100644
--- a/mesonbuild/compilers/cpp.py
+++ b/mesonbuild/compilers/cpp.py
@@ -325,7 +325,7 @@ class ElbrusCPPCompiler(GnuCPPCompiler, ElbrusCompiler):
         GnuCPPCompiler.__init__(self, exelist, version, for_machine,
                                 is_cross, info, exe_wrapper, defines,
                                 **kwargs)
-        ElbrusCompiler.__init__(self, defines)
+        ElbrusCompiler.__init__(self)
 
     # It does not support c++/gnu++ 17 and 1z, but still does support 0x, 1y, and gnu++98.
     def get_options(self):
@@ -351,6 +351,19 @@ class ElbrusCPPCompiler(GnuCPPCompiler, ElbrusCompiler):
                                         extra_args=extra_args,
                                         dependencies=dependencies)
 
+    # Elbrus C++ compiler does not support RTTI, so don't check for it.
+    def get_option_compile_args(self, options):
+        args = []
+        std = options['cpp_std']
+        if std.value != 'none':
+            args.append(self._find_best_cpp_std(std.value))
+
+        non_msvc_eh_options(options['cpp_eh'].value, args)
+
+        if options['cpp_debugstl'].value:
+            args.append('-D_GLIBCXX_DEBUG=1')
+        return args
+
 
 class IntelCPPCompiler(IntelGnuLikeCompiler, CPPCompiler):
     def __init__(self, exelist, version, for_machine: MachineChoice,
diff --git a/mesonbuild/compilers/fortran.py b/mesonbuild/compilers/fortran.py
index 73a8e241a..a83c17f4e 100644
--- a/mesonbuild/compilers/fortran.py
+++ b/mesonbuild/compilers/fortran.py
@@ -215,7 +215,7 @@ class ElbrusFortranCompiler(GnuFortranCompiler, ElbrusCompiler):
         GnuFortranCompiler.__init__(self, exelist, version, for_machine,
                                     is_cross, info, exe_wrapper, defines,
                                     **kwargs)
-        ElbrusCompiler.__init__(self, defines)
+        ElbrusCompiler.__init__(self)
 
 class G95FortranCompiler(FortranCompiler):
 
diff --git a/mesonbuild/compilers/mixins/elbrus.py b/mesonbuild/compilers/mixins/elbrus.py
index 87bf52a2f..db743d806 100644
--- a/mesonbuild/compilers/mixins/elbrus.py
+++ b/mesonbuild/compilers/mixins/elbrus.py
@@ -20,6 +20,7 @@ import subprocess
 import re
 
 from .gnu import GnuLikeCompiler
+from .gnu import gnu_optimization_args
 from ...mesonlib import Popen_safe
 
 if T.TYPE_CHECKING:
@@ -29,7 +30,7 @@ if T.TYPE_CHECKING:
 class ElbrusCompiler(GnuLikeCompiler):
     # Elbrus compiler is nearly like GCC, but does not support
     # PCH, LTO, sanitizers and color output as of version 1.21.x.
-    def __init__(self, defines: T.Dict[str, str]):
+    def __init__(self):
         super().__init__()
         self.id = 'lcc'
         self.base_options = ['b_pgo', 'b_coverage',
@@ -70,3 +71,13 @@ class ElbrusCompiler(GnuLikeCompiler):
             if line.lstrip().startswith('--sys_include'):
                 includes.append(re.sub(r'\s*\\$', '', re.sub(r'^\s*--sys_include\s*', '', line)))
         return includes
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return gnu_optimization_args[optimization_level]
+
+    def get_pch_suffix(self) -> str:
+        # Actually it's not supported for now, but probably will be supported in future
+        return 'pch'
+
+    def openmp_flags(self) -> T.List[str]:
+        return ['-fopenmp']
diff --git a/mesonbuild/environment.py b/mesonbuild/environment.py
index 58c9e996b..ef9480b69 100644
--- a/mesonbuild/environment.py
+++ b/mesonbuild/environment.py
@@ -586,11 +586,19 @@ class Environment:
             self.default_objcpp = ['c++', 'g++']
             self.default_cs = ['csc', 'mcs']
         else:
-            self.default_c = ['cc', 'gcc', 'clang', 'pgcc', 'icc']
-            self.default_cpp = ['c++', 'g++', 'clang++', 'pgc++', 'icpc']
+            if platform.machine().lower() == 'e2k':
+                # There are no objc or objc++ compilers for Elbrus,
+                # and there's no clang which can build binaries for host.
+                self.default_c = ['cc', 'gcc', 'lcc']
+                self.default_cpp = ['c++', 'g++', 'l++']
+                self.default_objc = []
+                self.default_objcpp = []
+            else:
+                self.default_c = ['cc', 'gcc', 'clang', 'pgcc', 'icc']
+                self.default_cpp = ['c++', 'g++', 'clang++', 'pgc++', 'icpc']
+                self.default_objc = ['cc', 'gcc', 'clang']
+                self.default_objcpp = ['c++', 'g++', 'clang++']
             self.default_fortran = ['gfortran', 'flang', 'pgfortran', 'ifort', 'g95']
-            self.default_objc = ['cc', 'gcc', 'clang']
-            self.default_objcpp = ['c++', 'g++', 'clang++']
             self.default_cs = ['mcs', 'csc']
         self.default_d = ['ldc2', 'ldc', 'gdc', 'dmd']
         self.default_java = ['javac']
@@ -939,6 +947,7 @@ class Environment:
                     cls = GnuCCompiler if lang == 'c' else GnuCPPCompiler
 
                 linker = self._guess_nix_linker(compiler, cls, for_machine)
+
                 return cls(
                     ccache + compiler, version, for_machine, is_cross,
                     info, exe_wrap, defines, full_version=full_version,
@@ -1258,7 +1267,7 @@ class Environment:
                 popen_exceptions[' '.join(compiler + arg)] = e
                 continue
             version = search_version(out)
-            if 'Free Software Foundation' in out or ('e2k' in out and 'lcc' in out):
+            if 'Free Software Foundation' in out:
                 defines = self.get_gnu_compiler_defines(compiler)
                 if not defines:
                     popen_exceptions[' '.join(compiler)] = 'no pre-processor defines'
diff --git a/run_unittests.py b/run_unittests.py
index ae12f4e9c..ff9dbd673 100755
--- a/run_unittests.py
+++ b/run_unittests.py
@@ -2290,7 +2290,7 @@ class AllPlatformTests(BasePlatformTests):
         ar = mesonbuild.linkers.ArLinker
         lib = mesonbuild.linkers.VisualStudioLinker
         langs = [('c', 'CC'), ('cpp', 'CXX')]
-        if not is_windows():
+        if not is_windows() and platform.machine().lower() != 'e2k':
             langs += [('objc', 'OBJC'), ('objcpp', 'OBJCXX')]
         testdir = os.path.join(self.unit_test_dir, '5 compiler detection')
         env = get_fake_env(testdir, self.builddir, self.prefix)
@@ -3087,7 +3087,9 @@ int main(int argc, char **argv) {
             pass
         try:
             env.detect_fortran_compiler(MachineChoice.HOST)
-            langs.append('fortran')
+            if is_windows() or platform.machine().lower() != 'e2k':
+                # Elbrus Fortran compiler can't generate debug information
+                langs.append('fortran')
         except EnvironmentException:
             pass
         try: