Merge pull request #3189 from opensourcerouting/libunwind

[mirror_frr.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 4d18c7997acefdb3136ab0982d278ae5bfb9e04c..60d3a876a8bbef66ed535f0f019c77fa94d07b0b 100755 (executable)
--- a/configure.ac
+++ b/configure.ac
@@ -310,7 +310,18 @@ AC_CHECK_TOOL(AR, ar)
 dnl -------
 dnl libtool
 dnl -------
+AC_ARG_ENABLE(static-bin,
+  AS_HELP_STRING([--enable-static-bin], [link binaries statically]))
 LT_INIT
+_LT_CONFIG_LIBTOOL([
+  patch -N -i "${srcdir}/m4/libtool-whole-archive.patch" libtool >&AS_MESSAGE_LOG_FD || \
+    AC_MSG_WARN([Could not patch libtool for static linking support.  Loading modules into a statically linked daemon will fail.])
+])
+if test "$enable_static_bin" = "yes"; then
+  AC_LDFLAGS="-static"
+fi
+AC_SUBST(AC_LDFLAGS)
+AM_CONDITIONAL([STATIC_BIN], [test "x$enable_static_bin" = "xyes"])
 
 dnl ----------------------
 dnl Packages configuration
@@ -741,6 +752,20 @@ if test "x$with_pkg_git_version" = "xyes"; then
 fi
 AM_CONDITIONAL([GIT_VERSION], [test "x$with_pkg_git_version" = "xyes"])
 
+AC_CHECK_TOOL([OBJCOPY], [objcopy], [:])
+AC_CACHE_CHECK([for .interp value to use], [frr_cv_interp], [
+  frr_cv_interp=""
+  AC_LINK_IFELSE([AC_LANG_SOURCE([[int main() { return 0; }]])], [
+    if $OBJCOPY -j.interp -Obinary conftest conftest.interp; then
+      frr_cv_interp="`xargs -0 echo < conftest.interp`"
+    fi
+    test -f conftest.interp && rm conftest.interp
+  ])
+])
+if test -n "$frr_cv_interp"; then
+  AC_DEFINE_UNQUOTED(INTERP, ["$frr_cv_interp"], [.interp value])
+fi
+
 dnl ------------------------------------
 dnl Check C keywords and standard  types
 dnl ------------------------------------
@@ -933,10 +958,6 @@ case "$host_os" in
     AC_CHECK_LIB(socket, main)
     AC_CHECK_LIB(nsl, main)
     AC_CHECK_LIB(umem, main)
-    AC_CHECK_FUNCS([printstack], [
-      AC_DEFINE([HAVE_PRINTSTACK],1,[Solaris printstack])
-      AC_DEFINE([HAVE_STACK_TRACE],1,[Stack symbols decode functionality])
-    ])
     CURSES=-lcurses
     SOLARIS="solaris"
     ;;
@@ -1786,17 +1807,31 @@ dnl check for glibc 'backtrace'
 dnl --------------------------- 
 if test x"${enable_backtrace}" != x"no" ; then
   backtrace_ok=no
-  AC_CHECK_HEADER([execinfo.h], [
-    AC_SEARCH_LIBS([backtrace], [execinfo], [
-      AC_DEFINE(HAVE_GLIBC_BACKTRACE,,[Glibc backtrace])
-      AC_DEFINE(HAVE_STACK_TRACE,,[Stack symbol decoding])
-      backtrace_ok=yes
-    ],, [-lm])
+  PKG_CHECK_MODULES([UNWIND], [libunwind], [
+    AC_DEFINE(HAVE_LIBUNWIND, 1, [libunwind])
+    backtrace_ok=yes
+  ], [
+    case "$host_os" in
+    sunos* | solaris2*)
+      AC_CHECK_FUNCS([printstack], [
+        AC_DEFINE([HAVE_PRINTSTACK], 1, [Solaris printstack])
+        backtrace_ok=yes
+      ])
+      ;;
+    esac
+    if test "$backtrace_ok" = no; then
+      AC_CHECK_HEADER([execinfo.h], [
+        AC_SEARCH_LIBS([backtrace], [execinfo], [
+          AC_DEFINE(HAVE_GLIBC_BACKTRACE, 1, [Glibc backtrace])
+          backtrace_ok=yes
+        ],, [-lm])
+      ])
+    fi
   ])
 
   if test x"${enable_backtrace}" = x"yes" -a x"${backtrace_ok}" = x"no"; then
     dnl user explicitly requested backtrace but we failed to find support
-    AC_MSG_FAILURE([failed to find backtrace support])
+    AC_MSG_FAILURE([failed to find backtrace or libunwind support])
   fi
 fi