diff options
Diffstat (limited to 'volk/config/lf_warnings.m4')
| -rw-r--r-- | volk/config/lf_warnings.m4 | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/volk/config/lf_warnings.m4 b/volk/config/lf_warnings.m4 index d40c77f14..e62fb276c 100644 --- a/volk/config/lf_warnings.m4 +++ b/volk/config/lf_warnings.m4 @@ -29,7 +29,8 @@ dnl distribution terms that you use for the rest of that program. # ------------------------------------------------------------------------- AC_DEFUN([LF_CHECK_CXX_FLAG],[ - echo 'void f(){}' > conftest.cc + echo "#include <stdio.h> +int main(int argc, char **argv){return 0;}" > conftest.cc for i in $1 do AC_MSG_CHECKING([whether $CXX accepts $i]) @@ -54,7 +55,8 @@ AC_DEFUN([LF_CHECK_CXX_FLAG],[ # ------------------------------------------------------------------------- AC_DEFUN([LF_CHECK_CC_FLAG],[ - echo 'void f(){}' > conftest.c + echo "#include <stdio.h> +int main(int argc, char **argv){return 0;}" > conftest.c for i in $1 do AC_MSG_CHECKING([whether $CC accepts $i]) |