--- a/m4/R.m4
+++ b/m4/R.m4
@@ -976,7 +976,7 @@
       x(1) = x(1)*x(2) + x(3)
       end
 EOF
-${FC} ${FFLAGS} -c conftestf.f 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
+${FC} ${FFLAGS} -fno-lto -c conftestf.f 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 dnl Yes we need to double quote this ...
 [cat > conftest.c <<EOF
 #include <math.h>
@@ -1012,7 +1012,7 @@
     else exit(1);
 }
 EOF]
-if ${CC} ${CPPFLAGS} ${CFLAGS} -c conftest.c 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
+if ${CC} ${CPPFLAGS} ${CFLAGS} -fno-lto -c conftest.c 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
   ## <NOTE>
   ## This should really use MAIN_LD, and hence come after this is
   ## determined (and necessary additions to MAIN_LDFLAGS were made).
@@ -1020,7 +1020,7 @@
   ## Also, to be defensive there should be a similar test with SHLIB_LD
   ## and SHLIB_LDFLAGS (and note that on HP-UX with native cc we have to
   ## use ld for SHLIB_LD) ...
-  if ${CC} ${CPPFLAGS} ${CFLAGS} ${LDFLAGS} ${MAIN_LDFLAGS} -o conftest${ac_exeext} \
+  if ${CC} ${CPPFLAGS} ${CFLAGS} -fno-lto ${LDFLAGS} ${MAIN_LDFLAGS} -o conftest${ac_exeext} \
        conftest.${ac_objext} conftestf.${ac_objext} ${FLIBS} \
        ${LIBM} 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD;
   ## </NOTE>
--- a/configure
+++ b/configure
@@ -27526,7 +27526,7 @@
       x(1) = x(1)*x(2) + x(3)
       end
 EOF
-${FC} ${FFLAGS} -c conftestf.f 1>&5 2>&5
+${FC} ${FFLAGS} -fno-lto -c conftestf.f 1>&5 2>&5
 cat > conftest.c <<EOF
 #include <math.h>
 #include <stdlib.h>
@@ -27561,7 +27561,7 @@
     else exit(1);
 }
 EOF
-if ${CC} ${CPPFLAGS} ${CFLAGS} -c conftest.c 1>&5 2>&5; then
+if ${CC} ${CPPFLAGS} ${CFLAGS} -fno-lto -c conftest.c 1>&5 2>&5; then
   ## <NOTE>
   ## This should really use MAIN_LD, and hence come after this is
   ## determined (and necessary additions to MAIN_LDFLAGS were made).
@@ -27569,7 +27569,7 @@
   ## Also, to be defensive there should be a similar test with SHLIB_LD
   ## and SHLIB_LDFLAGS (and note that on HP-UX with native cc we have to
   ## use ld for SHLIB_LD) ...
-  if ${CC} ${CPPFLAGS} ${CFLAGS} ${LDFLAGS} ${MAIN_LDFLAGS} -o conftest${ac_exeext} \
+  if ${CC} ${CPPFLAGS} ${CFLAGS} -fno-lto ${LDFLAGS} ${MAIN_LDFLAGS} -o conftest${ac_exeext} \
        conftest.${ac_objext} conftestf.${ac_objext} ${FLIBS} \
        ${LIBM} 1>&5 2>&5;
   ## </NOTE>