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-rw-r--r--configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index d5a062f..38c5ec8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -41,6 +41,7 @@ AC_CONFIG_SRCDIR([config.h.in])
AC_CONFIG_HEADERS([config.h])
AC_PROG_CC
AC_PROG_CC_C99
+AM_PROG_CC_C_O
# Automake 1.12 seems to require this, but automake 1.11 doesn't recognize it.
m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
LT_INIT