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-rw-r--r--configure.ac5
1 files changed, 5 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 346ab800..47db8472 100644
--- a/configure.ac
+++ b/configure.ac
@@ -428,6 +428,11 @@ AC_CHECK_DECLS([mempcpy],[],[],
AC_CHECK_FUNCS([process_vm_readv])
+old_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -D_GNU_SOURCE"
+AC_FUNC_STRERROR_R()
+CFLAGS="$old_CFLAGS"
+
AC_CHECK_LIB([stdc++], [__cxa_demangle], [dnl
AC_DEFINE([USE_DEMANGLE], [1], [Defined if demangling is enabled])])
AM_CONDITIONAL(DEMANGLE, test "x$ac_cv_lib_stdcpp___cxa_demangle" = "xyes")