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-rw-r--r--configure.ac3
1 files changed, 3 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index cf62d64b7..ba63e4438 100644
--- a/configure.ac
+++ b/configure.ac
@@ -89,6 +89,7 @@ AC_SUBST([usrsbin_execdir])
usrlib_execdir='${exec_prefix}/'$libdirname
AC_SUBST([usrlib_execdir])
+
AM_PROG_CC_C_O
AC_PROG_CC_STDC
AC_GNU_SOURCE
@@ -97,6 +98,8 @@ AC_C_CONST
AC_C_VOLATILE
AC_C_BIGENDIAN
+UL_PROG_CLANG
+
dnl Compiler warnings
UL_WARN_ADD([-Wextra])
UL_WARN_ADD([-Wno-missing-field-initializers])