diff --git a/configure.ac b/configure.ac
index 0a563469a..78146e0ec 100644
--- a/configure.ac
+++ b/configure.ac
@@ -96,6 +96,17 @@ RB_DEFINE_UNQUOTED([CXX_VERSION], ["$CXX_VERSION"], [CXX Compiler Version])
 AX_CXX_EPOCH
 RB_DEFINE_UNQUOTED([CXX_EPOCH], [$CXX_EPOCH], [CXX Compiler Version (major nr)])
 
+AM_CONDITIONAL([GCC8],     [[[[ $CXX = g\+\+* ]] && [[ $CXX_EPOCH -ge 8 ]]]])
+AM_CONDITIONAL([GCC9],     [[[[ $CXX = g\+\+* ]] && [[ $CXX_EPOCH -ge 9 ]]]])
+AM_CONDITIONAL([GCC10],    [[[[ $CXX = g\+\+* ]] && [[ $CXX_EPOCH -ge 10 ]]]])
+AM_CONDITIONAL([GCC11],    [[[[ $CXX = g\+\+* ]] && [[ $CXX_EPOCH -ge 11 ]]]])
+AM_CONDITIONAL([GCC12],    [[[[ $CXX = g\+\+* ]] && [[ $CXX_EPOCH -ge 12 ]]]])
+AM_CONDITIONAL([CLANG8],   [[[[ $CXX = clang* ]] && [[ $CXX_EPOCH -ge 8 ]]]])
+AM_CONDITIONAL([CLANG9],   [[[[ $CXX = clang* ]] && [[ $CXX_EPOCH -ge 9 ]]]])
+AM_CONDITIONAL([CLANG10],  [[[[ $CXX = clang* ]] && [[ $CXX_EPOCH -ge 10 ]]]])
+AM_CONDITIONAL([CLANG11],  [[[[ $CXX = clang* ]] && [[ $CXX_EPOCH -ge 11 ]]]])
+AM_CONDITIONAL([CLANG12],  [[[[ $CXX = clang* ]] && [[ $CXX_EPOCH -ge 12 ]]]])
+
 dnl
 dnl Coarse operating system test macros
 dnl