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-rw-r--r--configure.ac13
1 files changed, 13 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 3c35dac5..a5aea7fc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -85,7 +85,16 @@ AS_IF([test "$use_locks" = yes],
AH_TEMPLATE([USE_LOCKS], [Defined if libraries should be thread-safe.])
+AC_ARG_ENABLE([gnulib],
+AS_HELP_STRING([--enable-gnulib],
+ [use gnulib modules to replace functionality missing from libc. This affects the license choices for the resulting binaries.]),
+ use_gnulib=$enableval, use_gnulib=no)
+AM_CONDITIONAL(USE_GNULIB, test "$use_gnulib" = yes)
+
AC_PROG_CC
+
+gl_EARLY
+
AC_PROG_RANLIB
AC_PROG_YACC
AM_PROG_LEX
@@ -389,8 +398,12 @@ dnl Check if we have <linux/bpf.h> for EM_BPF disassembly.
AC_CHECK_HEADERS(linux/bpf.h)
AM_CONDITIONAL(HAVE_LINUX_BPF_H, [test "x$ac_cv_header_linux_bpf_h" = "xyes"])
+gl_INIT
+
dnl The directories with content.
+AC_CONFIG_FILES([libgnu/Makefile])
+
dnl Documentation.
dnl Commented out for now.
dnl AC_CONFIG_FILES([doc/Makefile])