Make configure options more sensible

`--disable-tools` will disable the AMQP tools.

`--disable-docs` will disable the AMQP tools documentation.

The `XMLTO` environment variable can be used to override the location of
the `xmlto` command at configure time.

The `POPT_CFLAGS` & `POPT_LIBS` environment variables can be used to
influence Libpopt configuration.

Signed-off-by: Michael Steinert <mike.steinert@gmail.com>

1 files changed, 73 insertions, 0 deletions

diff --git a/m4/popt.m4 b/m4/popt.m4
new file mode 100644
index 0000000..c5b79d8
--- /dev/null
+++ b/m4/popt.m4
@@ -0,0 +1,73 @@
+# popt.m4 - Check for Popt
+#
+# Copyright 2012 Michael Steinert
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+# THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#serial 1
+
+# _AX_LIB_POPT
+# ------------
+# Check for the Popt library and header file. If found the cache variable
+# ax_cv_have_popt will be set to yes.
+AC_DEFUN([_AX_LIB_POPT],
+[dnl
+ax_cv_have_popt=no
+_ax_popt_h=no
+_ax_popt_lib=no
+AC_ARG_VAR([POPT_CFLAGS], [C compiler flags for Popt, overriding defaults])
+AC_ARG_VAR([POPT_LIBS], [linker flags for Popt, overriding defaults])
+AC_CHECK_HEADERS([popt.h],
+		 [_ax_popt_h=yes],,
+		 [$POPT_CFLAGS])
+AS_IF([test "x$POPT_LIBS" = "x"],
+      [AC_SEARCH_LIBS([poptGetContext], [popt],
+		      [POPT_LIBS=-lpopt
+		       _ax_popt_lib=yes])],
+      [_ax_popt_cflags=$CFLAGS
+       CFLAGS="$POPT_CFLAGS $CFLAGS"
+       _ax_popt_ldflags=$LDFLAGS
+       LDFLAGS="$POPT_LIBS $LDFLAGS"
+       AC_MSG_CHECKING([for libpopt])
+       AC_TRY_LINK([#include <popt.h>],
+		   [poptFreeContext(NULL)],
+		   [AC_MSG_RESULT([$POPT_LIBS])
+		    _ax_popt_lib=yes],
+		   [AC_MSG_RESULT([no])])
+       CFLAGS=$_ax_popt_cflags
+       LDFLAGS=$_ax_popt_ldflags])
+AS_IF([test "x$_ax_popt_h" = "xyes" && \
+       test "x$_ax_popt_lib" = "xyes"],
+      [ax_cv_have_popt=yes])
+])dnl
+
+# AX_LIB_POPT([ACTION-IF-TRUE], [ACTION-IF-FALSE])
+# ------------------------------------------------
+# Check is installed. If found the variable ax_have_popt will be set to yes.
+# ACTION-IF-TRUE: commands to execute if Popt is installed
+# ACTION-IF-FALSE: commands to execute if Popt is not installed
+AC_DEFUN([AX_LIB_POPT],
+[dnl
+AC_CACHE_VAL([ax_cv_have_popt], [_AX_LIB_POPT])
+ax_have_popt=$ax_cv_have_popt
+AS_IF([test "x$ax_have_popt" = "xyes"],
+      [AC_DEFINE([HAVE_POPT], [1], [Define to 1 if Popt is available.])
+       $1], [$2])
+])dnl