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diff -u -r -N a/configure b/configure
--- a/configure 2020-08-18 12:07:36.000000000 +0900
+++ b/configure 2020-08-18 12:52:34.000000000 +0900
@@ -243,30 +243,8 @@
## does Fortran append underscores to symbols?
-echo -n "does $CONF_FC append underscores... " 1>&3
-
-tee $test-c.c << _EOF_ 1>&2
-int uscore_ = 95;
-int uscore = 59;
-_EOF_
-
-for CONF_BITS in ${CONF_BITS:--m64 -m32} "" ; do
- eval $CONF_CC$CONF_CFLAGS $CONF_BITS -c $test-c.c 1>&2 || continue
- eval $CONF_FC$CONF_FFLAGS -o $test$CONF_EXE $test.f $test-c.o $CONF_LDFLAGS 1>&2 && break
-done
-
-./$test$CONF_EXE
-case $? in
-95)
- echo "yes" 1>&3
- CONF_NOUNDERSCORE=0 ;;
-59)
- echo "no" 1>&3
- CONF_NOUNDERSCORE=1 ;;
-*)
- echo "error linking Fortran and C" 1>&3
- exit 1 ;;
-esac
+CONF_BITS=""
+CONF_NOUNDERSCORE=0
CONF_CFLAGS+=" $CONF_BITS"
CONF_CXXFLAGS+=" $CONF_BITS"
@@ -426,7 +404,7 @@
QUADSIZE = $CONF_QUADSIZE
FC = $CONF_FC
-FFLAGS =$CONF_FFLAGS \\
+FFLAGS =-Fwide $CONF_FFLAGS \\
\$(DEF)QUAD=\$(QUAD) \$(DEF)QUADSIZE=\$(QUADSIZE) \\
\$(DEF)U77EXT=$CONF_U77EXT
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