wayland/configure.ac
Peter Hutterer f66e2d53dd Validate the protocol xml during scanning
Embed the wayland.dtd protocol data into the scanner binary so we can validate
external protocol files without requiring makefile changes. Hat-tip to Pekka
Paalanen for the embedding trick.
The embedding trick doesn't work well if the to-be-embedded file is in a
different location than the source file, so copy/link it during configure and
then build it in from the local directory.

The current expat parser is not a validating parser, moving scanner.c to
another parser has the risk of breaking compatibility. This patch adds libxml2
as extra (optional) dependency, but that also requires parsing the input
twice.

If the protocol fails validation a warning is printed but no error is returned
otherwise.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-11-17 14:36:21 +02:00

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AC_PREREQ([2.64])
m4_define([wayland_major_version], [1])
m4_define([wayland_minor_version], [9])
m4_define([wayland_micro_version], [90])
m4_define([wayland_version],
[wayland_major_version.wayland_minor_version.wayland_micro_version])
AC_INIT([wayland],
[wayland_version],
[https://bugs.freedesktop.org/enter_bug.cgi?product=Wayland&component=wayland&version=wayland_version],
[wayland],
[http://wayland.freedesktop.org/])
AC_SUBST([WAYLAND_VERSION_MAJOR], [wayland_major_version])
AC_SUBST([WAYLAND_VERSION_MINOR], [wayland_minor_version])
AC_SUBST([WAYLAND_VERSION_MICRO], [wayland_micro_version])
AC_SUBST([WAYLAND_VERSION], [wayland_version])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz subdir-objects])
AM_SILENT_RULES([yes])
# Check for programs
AC_PROG_CC
AC_PROG_CXX
AC_PROG_GREP
AM_PROG_AS
# check if we have C++ compiler. This is hacky workaround,
# for a reason why it is this way see
# http://lists.gnu.org/archive/html/bug-autoconf/2010-05/msg00001.html
have_cpp_compiler=yes
if ! which "$CXX" &>/dev/null; then
have_cpp_compiler=no
fi
AM_CONDITIONAL(ENABLE_CPP_TEST, test "x$have_cpp_compiler" = "xyes")
# Initialize libtool
LT_PREREQ([2.2])
LT_INIT
PKG_PROG_PKG_CONFIG()
if test "x$GCC" = "xyes"; then
GCC_CFLAGS="-Wall -Wextra -Wno-unused-parameter -g -Wstrict-prototypes -Wmissing-prototypes -fvisibility=hidden"
fi
AC_SUBST(GCC_CFLAGS)
AC_CHECK_FUNCS([accept4 mkostemp posix_fallocate])
AC_ARG_ENABLE([libraries],
[AC_HELP_STRING([--disable-libraries],
[Disable compilation of wayland libraries])],
[],
[enable_libraries=yes])
AC_ARG_WITH([host-scanner],
[AC_HELP_STRING([--with-host-scanner],
[Use installed wayland-scanner from host PATH during build])],
[],
[with_host_scanner=no])
AC_ARG_ENABLE([documentation],
[AC_HELP_STRING([--disable-documentation],
[Disable building the documentation])],
[],
[enable_documentation=yes])
AC_ARG_ENABLE([dtd-validation],
[AC_HELP_STRING([--disable-dtd-validation],
[Disable DTD validation of the protocol])],
[],
[enable_dtdvalidation=yes])
AM_CONDITIONAL(USE_HOST_SCANNER, test "x$with_host_scanner" = xyes)
AM_CONDITIONAL(ENABLE_LIBRARIES, test "x$enable_libraries" = xyes)
AC_ARG_WITH(icondir, [ --with-icondir=<dir> Look for cursor icons here],
[ ICONDIR=$withval],
[ ICONDIR=${datadir}/icons])
AC_SUBST([ICONDIR])
if test "x$enable_libraries" = "xyes"; then
PKG_CHECK_MODULES(FFI, [libffi])
AC_CHECK_DECL(SFD_CLOEXEC,[],
[AC_MSG_ERROR("SFD_CLOEXEC is needed to compile wayland libraries")],
[[#include <sys/signalfd.h>]])
AC_CHECK_DECL(TFD_CLOEXEC,[],
[AC_MSG_ERROR("TFD_CLOEXEC is needed to compile wayland libraries")],
[[#include <sys/timerfd.h>]])
AC_CHECK_DECL(CLOCK_MONOTONIC,[],
[AC_MSG_ERROR("CLOCK_MONOTONIC is needed to compile wayland libraries")],
[[#include <time.h>]])
AC_CHECK_HEADERS([execinfo.h])
fi
PKG_CHECK_MODULES(EXPAT, [expat], [],
[AC_CHECK_HEADERS(expat.h, [],
[AC_MSG_ERROR([Can't find expat.h. Please install expat.])])
SAVE_LIBS="$LIBS"
AC_SEARCH_LIBS(XML_ParserCreate, expat, [],
[AC_MSG_ERROR([Can't find expat library. Please install expat.])])
EXPAT_LIBS="$LIBS"
LIBS="$SAVE_LIBS"
AC_SUBST(EXPAT_LIBS)
])
if test "x$enable_dtdvalidation" = "xyes"; then
PKG_CHECK_MODULES(LIBXML, [libxml-2.0])
AC_DEFINE(HAVE_LIBXML, 1, [libxml-2.0 is available])
AC_CONFIG_LINKS([src/wayland.dtd.embed:protocol/wayland.dtd])
fi
AC_PATH_PROG(XSLTPROC, xsltproc)
AM_CONDITIONAL([HAVE_XSLTPROC], [test "x$XSLTPROC" != "x"])
AC_MSG_CHECKING([for docbook manpages stylesheet])
MANPAGES_STYLESHEET=http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl
AC_PATH_PROGS_FEATURE_CHECK([XSLTPROC_TMP], [xsltproc],
AS_IF([`"$ac_path_XSLTPROC_TMP" --nonet "$MANPAGES_STYLESHEET" > /dev/null 2>&1`],
[HAVE_MANPAGES_STYLESHEET=yes]))
if test "x$HAVE_MANPAGES_STYLESHEET" = "xyes"; then
AM_CONDITIONAL([HAVE_MANPAGES_STYLESHEET], true)
AC_SUBST(MANPAGES_STYLESHEET)
AC_MSG_RESULT([yes])
else
AM_CONDITIONAL([HAVE_MANPAGES_STYLESHEET], false)
AC_MSG_RESULT([no])
fi
AM_CONDITIONAL(BUILD_DOCS, [test x$enable_documentation = xyes])
if test "x$enable_documentation" = "xyes"; then
AC_PATH_PROG(DOXYGEN, doxygen)
if test "x$DOXYGEN" = "x"; then
AC_MSG_ERROR([Documentation build requested but doxygen not found. Install doxygen or disable the documentation using --disable-documentation])
fi
AC_MSG_CHECKING([for compatible doxygen version])
doxygen_version=`$DOXYGEN --version`
AS_VERSION_COMPARE([$doxygen_version], [1.6.0],
[AC_MSG_RESULT([no])
AC_MSG_ERROR([Doxygen $doxygen_version too old. Doxygen 1.6+ required for documentation build. Install required doxygen version or disable the documentation using --disable-documentation])],
[AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([yes])])
AC_PATH_PROG(XMLTO, xmlto)
if test "x$XMLTO" = "x"; then
AC_MSG_ERROR([Documentation build requested but xmlto not found. Install xmlto or disable the documentation using --disable-documentation])
fi
AC_PATH_PROG(DOT, dot)
if test "x$DOT" = "x"; then
AC_MSG_ERROR([Documentation build requested but graphviz's dot not found. Install graphviz or disable the documentation using --disable-documentation])
fi
AC_MSG_CHECKING([for compatible dot version])
dot_version=`$DOT -V 2>&1|$GREP -o ['[0-9]*\.[0-9]*\.[0-9]*']`
AS_VERSION_COMPARE([$dot_version], [2.26.0],
[AC_MSG_RESULT([no])
AC_MSG_ERROR([Graphviz dot $dot_version too old. Graphviz 2.26+ required for documentation build. Install required graphviz version or disable the documentation using --disable-documentation])],
[AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([yes])])
AC_CONFIG_FILES([
doc/doxygen/wayland.doxygen
])
fi
AM_CONDITIONAL([HAVE_XMLTO], [test "x$XMLTO" != "x"])
AC_CONFIG_FILES([Makefile
cursor/wayland-cursor.pc
cursor/wayland-cursor-uninstalled.pc
doc/Makefile
doc/publican/Makefile
doc/doxygen/Makefile
doc/man/Makefile
src/wayland-server-uninstalled.pc
src/wayland-client-uninstalled.pc
src/wayland-scanner-uninstalled.pc
src/wayland-server.pc
src/wayland-client.pc
src/wayland-scanner.pc
src/wayland-version.h])
AC_OUTPUT