diff options
| -rw-r--r-- | m4/openssh.m4 | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/m4/openssh.m4 b/m4/openssh.m4 index 8c33c701b..e6d392a02 100644 --- a/m4/openssh.m4 +++ b/m4/openssh.m4 @@ -15,7 +15,7 @@ AC_DEFUN([OSSH_CHECK_CFLAG_COMPILE], [{ #include <stdlib.h> #include <stdio.h> /* Trivial function to help test for -fzero-call-used-regs */ -void f(int n) {} +int f(int n) {return rand() % n;} int main(int argc, char **argv) { (void)argv; /* Some math to catch -ftrapv problems in the toolchain */ @@ -65,6 +65,8 @@ AC_DEFUN([OSSH_CHECK_CFLAG_LINK], [{ AC_LINK_IFELSE([AC_LANG_SOURCE([[ #include <stdlib.h> #include <stdio.h> +/* Trivial function to help test for -fzero-call-used-regs */ +int f(int n) {return rand() % n;} int main(int argc, char **argv) { (void)argv; /* Some math to catch -ftrapv problems in the toolchain */ @@ -73,6 +75,7 @@ int main(int argc, char **argv) { double m = l / 0.5; long long int n = argc * 12345LL, o = 12345LL * (long long int)argc; long long int p = n * o; + f(0); printf("%d %d %d %f %f %lld %lld %lld\n", i, j, k, l, m, n, o, p); exit(0); } @@ -104,6 +107,8 @@ AC_DEFUN([OSSH_CHECK_LDFLAG_LINK], [{ AC_LINK_IFELSE([AC_LANG_SOURCE([[ #include <stdlib.h> #include <stdio.h> +/* Trivial function to help test for -fzero-call-used-regs */ +int f(int n) {return rand() % n;} int main(int argc, char **argv) { (void)argv; /* Some math to catch -ftrapv problems in the toolchain */ @@ -112,6 +117,7 @@ int main(int argc, char **argv) { double m = l / 0.5; long long int n = argc * 12345LL, o = 12345LL * (long long int)argc; long long p = n * o; + f(0); printf("%d %d %d %f %f %lld %lld %lld\n", i, j, k, l, m, n, o, p); exit(0); } |