added m4 macros for boost C++ headers and libs, hopefully making better autoconf...

[m4-moved-to-github.git] / ax_boost_program_options.m4

diff --git a/ax_boost_program_options.m4 b/ax_boost_program_options.m4
new file mode 100644 (file)
index 0000000..fb16c5f
--- /dev/null
+++ b/ax_boost_program_options.m4
@@ -0,0 +1,98 @@
+##### http://autoconf-archive.cryp.to/ax_boost_program_options.html
+#
+# SYNOPSIS
+#
+#   AX_BOOST_PROGRAM_OPTIONS
+#
+# DESCRIPTION
+#
+#   Test for program options library from the Boost C++ libraries. The
+#   macro requires a preceding call to AX_BOOST_BASE. Further
+#   documentation is available at
+#   <http://randspringer.de/boost/index.html>.
+#
+#   This macro calls:
+#
+#     AC_SUBST(BOOST_PROGRAM_OPTIONS_LIB)
+#
+#   And sets:
+#
+#     HAVE_BOOST_PROGRAM_OPTIONS
+#
+# LAST MODIFICATION
+#
+#   2006-12-28
+#
+# COPYLEFT
+#
+#   Copyright (c) 2006 Thomas Porschberg <thomas@randspringer.de>
+#
+#   Copying and distribution of this file, with or without
+#   modification, are permitted in any medium without royalty provided
+#   the copyright notice and this notice are preserved.
+
+AC_DEFUN([AX_BOOST_PROGRAM_OPTIONS],
+[
+       AC_ARG_WITH([boost-program-options],
+               AS_HELP_STRING([--with-boost-program-options@<:@=special-lib@:>@],
+                       [use the program options library from boost - it is possible to specify a certain library for the linker
+                        e.g. --with-boost-program-options=boost_program_options-gcc-mt-1_33_1 ]),
+        [
+        if test "$withval" = "no"; then
+                       want_boost="no"
+        elif test "$withval" = "yes"; then
+            want_boost="yes"
+            ax_boost_user_program_options_lib=""
+        else
+                   want_boost="yes"
+               ax_boost_user_program_options_lib="$withval"
+               fi
+        ],
+        [want_boost="yes"]
+       )
+
+       if test "x$want_boost" = "xyes"; then
+        AC_REQUIRE([AC_PROG_CC])
+           export want_boost
+               CPPFLAGS_SAVED="$CPPFLAGS"
+               CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
+               export CPPFLAGS
+               LDFLAGS_SAVED="$LDFLAGS"
+               LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
+               export LDFLAGS
+               AC_CACHE_CHECK([whether the Boost::Program_Options library is available],
+                                          ax_cv_boost_program_options,
+                                          [AC_LANG_PUSH(C++)
+                               AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[@%:@include <boost/program_options.hpp>
+                                                          ]],
+                                  [[boost::program_options::options_description generic("Generic options");
+                                   return 0;]]),
+                           ax_cv_boost_program_options=yes, ax_cv_boost_program_options=no)
+                                       AC_LANG_POP([C++])
+               ])
+               if test "$ax_cv_boost_program_options" = yes; then
+                               AC_DEFINE(HAVE_BOOST_PROGRAM_OPTIONS,,[define if the Boost::PROGRAM_OPTIONS library is available])
+                                 BN=boost_program_options
+                if test "x$ax_boost_user_program_options_lib" = "x"; then
+                                 for ax_lib in $BN $BN-$CC $BN-$CC-mt $BN-$CC-mt-s $BN-$CC-s \
+                                lib$BN lib$BN-$CC lib$BN-$CC-mt lib$BN-$CC-mt-s lib$BN-$CC-s \
+                                $BN-mgw $BN-mgw $BN-mgw-mt $BN-mgw-mt-s $BN-mgw-s ; do
+                                     AC_CHECK_LIB($ax_lib, main,
+                                   [BOOST_PROGRAM_OPTIONS_LIB="-l$ax_lib" AC_SUBST(BOOST_PROGRAM_OPTIONS_LIB) link_program_options="yes" break],
+                                   [link_program_options="no"])
+                                 done
+                else
+                  for ax_lib in $ax_boost_user_program_options_lib $BN-$ax_boost_user_program_options_lib; do
+                                     AC_CHECK_LIB($ax_lib, main,
+                                   [BOOST_PROGRAM_OPTIONS_LIB="-l$ax_lib" AC_SUBST(BOOST_PROGRAM_OPTIONS_LIB) link_program_options="yes" break],
+                                   [link_program_options="no"])
+                  done
+                fi
+                               if test "x$link_program_options" = "xno"; then
+                                       AC_MSG_ERROR([Could not link against [$ax_lib] !])
+                               fi
+               fi
+               CPPFLAGS="$CPPFLAGS_SAVED"
+       LDFLAGS="$LDFLAGS_SAVED"
+       fi
+])