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-rw-r--r--stmhal/main.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/stmhal/main.c b/stmhal/main.c
index ec6d6bcd2..dbf3ced68 100644
--- a/stmhal/main.c
+++ b/stmhal/main.c
@@ -116,7 +116,8 @@ void nlr_jump_fail(void *val) {
}
#ifndef NDEBUG
-void __assert_func(const char *file, int line, const char *func, const char *expr) {
+void __attribute__((weak))
+ __assert_func(const char *file, int line, const char *func, const char *expr) {
(void)func;
printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
__fatal_error("");