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-rw-r--r--config.h.in7
1 files changed, 7 insertions, 0 deletions
diff --git a/config.h.in b/config.h.in
index 5761db2c5c..504f77021e 100644
--- a/config.h.in
+++ b/config.h.in
@@ -13,6 +13,13 @@
/* Define if using the GNU assembler, gas. */
#undef HAVE_GNU_AS
+
+/* ELF has weak symbols, and with GNU ld a.out does too. */
+#ifndef HAVE_WEAK_SYMBOLS
+#if defined (HAVE_ELF) || defined (HAVE_GNU_LD)
+#define HAVE_WEAK_SYMBOLS
+#endif
+#endif
/* These symbols might be defined by some sysdeps configures. */