diff --git a/m4/acx_check_cfortran.m4 b/m4/acx_check_cfortran.m4 index c51b72b7ea3375cf476e4cb696f26ca261d67f0b..a8dc4468b80d00eb05603f109ad2351aa95c7689 100644 --- a/m4/acx_check_cfortran.m4 +++ b/m4/acx_check_cfortran.m4 @@ -260,7 +260,7 @@ FCALLSCSUB0(errExit,ERR_EXIT,err_exit) [_ACX_CHECK_CFORTRAN_FC], [acx_cv_cfortran_works=${acx_cv_cfortran_works-yes}])]) AC_PROVIDE_IFELSE([AC_PROG_F77], - [AS_IF([test -n "$F77" -a X"$F77" != Xno AC_PROVIDE_IFELSE([AC_PROG_FC],[-a x"$acx_cv_cfortran_works" = xyes])],[_ACX_CHECK_CFORTRAN_F77])]) + [AS_IF([test -n "$F77" -a X"$F77" != Xno AC_PROVIDE_IFELSE([AC_PROG_FC],[-a \( x"$acx_cv_cfortran_works" = xyes -o -z "$FC" -o X"$FC" = Xno \)])],[_ACX_CHECK_CFORTRAN_F77])]) rm -f "conftest_c.$ac_objext" "conftest_c.$OBJEXT" ], [acx_cv_cfortran_works="compiling with cfortran.h failed"])