--- src/CMakeLists.txt.old	2021-05-30 11:51:07.000000000 +0200
+++ src/CMakeLists.txt	2021-05-30 11:51:28.000000000 +0200
@@ -415,7 +415,7 @@
     SOURCE_DIR ${GENTAB_SDIR}
     BINARY_DIR ${GENTAB_BDIR}
     CONFIGURE_COMMAND
-        "${CMAKE_COMMAND}" -DCMAKE_VERBOSE_MAKEFILE=${CMAKE_VERBOSE_MAKEFILE} -G "${CMAKE_GENERATOR}" -B "${GENTAB_BDIR}" "${GENTAB_SDIR}"
+        "${CMAKE_COMMAND}" -DCMAKE_VERBOSE_MAKEFILE=${CMAKE_VERBOSE_MAKEFILE} -G "${CMAKE_GENERATOR}" -B "${GENTAB_BDIR}" "${GENTAB_SDIR}" "-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}"
     BUILD_COMMAND
         "${CMAKE_COMMAND}" --build "${GENTAB_BDIR}"
     INSTALL_COMMAND ${GENTAB_BDIR}/make_tables.exe "${CMAKE_BINARY_DIR}/"