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-rw-r--r--gprof/configure.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/gprof/configure.in b/gprof/configure.in
index 5913bf1..18475d7 100644
--- a/gprof/configure.in
+++ b/gprof/configure.in
@@ -19,6 +19,7 @@ AC_CONFIG_HEADERS([gconfig.h:gconfig.in])
AC_PROG_CC
AC_GNU_SOURCE
+AC_USE_SYSTEM_EXTENSIONS
AC_PROG_INSTALL
AM_PROG_LIBTOOL