- make it compilable with gcc 4.0.2 and newer doxygen

- several improvements

configure.in

@@ -8,13 +8,15 @@
 ## @copy © Marc Wäckerlin
 ## @license LGPL, see file <a href="license.html">COPYING</a>
 ##
+##       1         2         3         4         5         6         7         8
+## 45678901234567890123456789012345678901234567890123456789012345678901234567890
 
 # init
 AC_INIT([mrw/mrw.hpp.in])
 PACKAGENAME=mrw-c++
 m4_define(x_major, 2)
-m4_define(x_minor, 2)
+m4_define(x_minor, 3)
-m4_define(x_least, 1)
+m4_define(x_least, 0)
 AM_INIT_AUTOMAKE(@PACKAGENAME@, @MAJOR@.@MINOR@.@LEAST@, [marc@waeckerlin.org])
 
 # copy M4 to shell
@@ -66,19 +68,19 @@ AM_MAINTAINER_MODE
 AC_ARG_ENABLE(threads,
   [  --disable-threads       disable multithreading],
   [with_threads="$enableval"], [with_threads="yes"])
-THREADS="-pthread"
+THREADS="-pthread -D_MT"
-AM_CONDITIONAL(HAVE_THREADS, test "$with_threads" == "yes")
+AM_CONDITIONAL(HAVE_THREADS, test "$with_threads" = "yes")
 AC_ARG_ENABLE(autofntrace,
   [  --disable-autofntrace   disable automated function trace (requires gcc)],
   [with_autofntrace="$enableval"], [with_autofntrace="yes"])
-AM_CONDITIONAL(AUTOFNTRACE, test "$with_autofntrace" == "yes" -a -n "$GCC")
+AM_CONDITIONAL(AUTOFNTRACE, test "$with_autofntrace" = "yes" -a -n "$GCC")
 AC_ARG_ENABLE(pedantic,
   [  --enable-pedantic       enable all warnings and checks, abort on warnings],
   [have_pedantic="$enableval"; test "$enableval" = "yes" &&  \
-     AM_CXXFLAGS="${AM_CXXFLAGS:-} -pedantic-errors -Wall -W -Wfloat-equal -Wundef -Wendif-labels -Wpointer-arith -Wcast-align -Wwrite-strings -Wconversion -Wsign-compare -Wmissing-format-attribute -Wno-multichar -Wpacked -Wredundant-decls -Werror -Wshadow -Wcast-qual -Wno-ctor-dtor-privacy"])
+     AM_CXXFLAGS="${AM_CXXFLAGS:-} -pedantic-errors -Wall -W -Wfloat-equal -Wundef -Wendif-labels -Wpointer-arith -Wcast-align -Wwrite-strings -Wconversion -Wsign-compare -Wmissing-format-attribute -Wno-multichar -Wpacked -Wredundant-decls -Werror -Wshadow -Wcast-qual -Wno-ctor-dtor-privacy"], [have_pedantic="no"])
 dnl problem in libs: -Wshadow -Wcast-qual
 dnl auto.hpp: -Wno-ctor-dtor-privacy (removed)
-AM_CONDITIONAL(PEDANTIC, test "$enableval" = "yes")
+AM_CONDITIONAL(PEDANTIC, test "$have_pedantic" = "yes")
 AC_ARG_ENABLE(dot,
   [  --disable-dot           disable dot graphic tools for documentation],
   [have_dot="$enableval"])
@@ -89,17 +91,37 @@ AC_ARG_ENABLE(log4cxx,
   [have_log4cxx="$enableval"])
 AM_CONDITIONAL(HAVE_LOG4CXX, test "$have_log4cxx" = "yes")
 AC_ARG_ENABLE(ltdl,
-  [  --disable-ltdl          disable use of libtool library dynamic loading
+  [  --disable-ltdl          enable use of libtool library dynamic loading
-                          Note: For automated stack trace, you need ltdl],
+                          Note: For automated stack trace, you need either
-  [have_ltdl="$enableval"])
+                                ltdl or the libbfd BFD library from
+                                the binutils package at compile time.],
+  [have_ltdl="$enableval"], [have_ltdl="yes"])
 AM_CONDITIONAL(HAVE_LTDL, test "$have_ltdl" = "yes")
+AC_ARG_ENABLE(dynamicstack,
+  [  --enable-dynamic-stack  enable use of libtool library dynamic loading
+                          for stacktrace, this means the code is not linked
+                          to libbfd, instead a dynamical version of libbfd
+                          is loaded at runtime - this prevents dependency on
+                          the bfd library (which is part of the GNU binutils).
+                          Note: For automated stack trace, you need either
+                                ltdl or the libbfd BFD library from
+                                the GNU binutils package at compile time.],
+  [have_dynamicstack="$enableval"], [have_dynamicstack="no"])
 AC_ARG_ENABLE(stacktrace,
   [  --disable-stacktrace    disable stack trace, use this if you cannot
                           compile the library on your system otherwise and
                           you still want to use the other parts],
-  [have_stacktrace="$enableval"], [have_stacktrace=$have_ltdl])
+  [have_stacktrace="$enableval"], [have_stacktrace="yes"])
 AM_CONDITIONAL(HAVE_STACKTRACE, test "$have_stacktrace" = "yes")
 if test "$have_stacktrace" = "yes"; then
+  AC_CHECK_HEADER([demangle.h],
+                  [AC_DEFINE([HAVE_DEMANGLE_H])],
+                  [AC_MSG_WARN([Header "demangle.h" from the binutils not found!
+ - unfortunately, the bintils do not install this header
+   (even though they should)
+ - the required symbols are now declared in stacktrace.cpp according to my
+   own binutils version (binutils-2.16.1) it may or may not be compytible to
+   yours])])
   AC_SEARCH_LIBS(cplus_demangle, [demangle iberty],
                  [AC_MSG_RESULT([OK, found cplus_demangle])],
 [AC_MSG_ERROR([Function cplus_demangle not found!
@@ -110,6 +132,16 @@ if test "$have_stacktrace" = "yes"; then
           -> is the symbol defined?
  - Try to compile with option --disable-stacktrace
    If you are not a developer, you perhaps don't need it...?])])
+  if test "$have_dynamicstack" != "yes"; then
+    AC_DEFINE([NO_LTDL])
+    AC_SEARCH_LIBS(bfd_openr, bfd,
+                 [AC_MSG_RESULT([OK, found libbfd])],
+[AC_MSG_ERROR([BFD library from the binutils package not found!
+It is required for stach trace!
+ - install binutils or binutils-devel
+ - or configure with option --enable-ltdl
+ - or configure with option --disable-stacktrace])])
+  fi
 fi
 AC_ARG_WITH([boost-thread],AS_HELP_STRING([--with-boost-thread],
             [specify the boost thread library or suffix to use]),
@@ -122,7 +154,7 @@ AC_ARG_WITH([boost-thread],AS_HELP_STRING([--with-boost-thread],
              else
                chk_libs=""
              fi],
-             [chk_libs="boost_thread boost_thread-mt boost_thread-gcc-mt"])
+             [chk_libs="boost_thread boost_thread-mt boost_thread-${CXX} boost_thread-${CC} boost_thread-${CXX}-mt boost_thread-${CC}-mt"])
 for ax_lib in $chk_libs; do
   AC_CHECK_LIB($ax_lib, main, [BOOST_THREAD_LIB="-l$ax_lib" break])
 done
@@ -156,12 +188,12 @@ if test "$have_cppunit" = "no"; then
 AC_MSG_WARN([Missing cppunit development library!
   - you cannot check the library using "make check"
   - everything else works perfectly]); fi
-if test "$have_pedantic" == "yes"; then
+if test "$have_pedantic" = "yes"; then
 AC_MSG_NOTICE([Pedantic compile mode enabled!
   - all warnings for GNU g++ are enabled
   - all warnings result in an error
   - doxygen warnings are treated as error too]); fi
-if test "$with_threads" == "no"; then
+if test "$with_threads" = "no"; then
 AC_MSG_WARN([Multithreading support is disabled!
   - use --enable-threads to enable it
   - actually, there's only support for automated function trace]); fi
@@ -172,11 +204,11 @@ AC_MSG_WARN([Library log4cxx will not be used!
 if test "$have_stacktrace" != "yes"; then
 AC_MSG_WARN([mrw::StackTrace is disabled!]); fi
 if test "$have_ltdl" != "yes"; then
-AC_MSG_ERROR([mrw::DynamicLibrary dynamic library loading is disabled!
+AC_MSG_WARN([mrw::DynamicLibrary dynamic library loading is disabled!
- - mrw::StackTrace is disabled without mrw::DynamicLibrary
  - install the GNU libtool, if you need mrw::DynamicLibrary]);fi
 if test "$with_autofntrace" != "yes" -o -z "$GCC"; then
 AC_MSG_WARN([Automated GNU gcc function tracing is disabled!
+ - libmrwautofunctiontracestdout won't be built
  - libmrwautofunctiontracelog4cxx won't be built]);fi
 if test -z "$BOOST_THREAD_LIB"; then
 AC_MSG_WARN([Boost thread library not found!
@@ -184,3 +216,10 @@ AC_MSG_WARN([Boost thread library not found!
  - support for multithreading is disabled
  - try to pass the library name, e.g.
    --with-boost-thread=boost_thread-icc-mt]);fi
+if test "$have_dynamicstack" = "yes" -a \
+        \( "$have_stacktrace" != "yes" -o "$have_ltdl" != "yes" \); then
+AC_MSG_ERROR([Option --enable-dynamic-stack was given, but either
+stacktrace is disabled or ltdl is disabled.
+  --enable-dynamic-stack should always be used together with options
+  --enable-stacktrace and
+  --enable-ltdl]);fi