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build: fix ./configure --disable-dtd-validation

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When configured with --disable-dtd-validation:

  CPPAS    src/dtddata.o
src/dtddata.S: Assembler messages:
src/dtddata.S:39: Error: file not found: src/wayland.dtd.embed
Makefile:1520: recipe for target 'src/dtddata.o' failed

This is because the variable name used does not match the implicit
variable name in autoconf.

Fix the variable name, making both --disable-dtd-validation and
--enable-dtd-validation to what they should.

Do not try to build dtddata.S if dtd-validation is disabled. It depends
on wayland.dtd.embed which is created by configure only if
dtd-validation is enabled.

If not building dtddata.S, also make sure the extern definitions in
scanner.c are compiled out.

Bugzilla: https://bugs.gentoo.org/show_bug.cgi?id=575212
Reported-by: leio@gentoo.org
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Tested-by: Bryce Harrington <bryce@osg.samsung.com>
This commit is contained in:
Pekka Paalanen 2016-02-29 14:59:51 +02:00 committed by Bryce Harrington
parent 564623653a
commit 4a41d26c4d
3 changed files with 10 additions and 6 deletions
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5
Makefile.am
View File

@ -23,11 +23,14 @@ pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA =
bin_PROGRAMS = wayland-scanner
wayland_scanner_SOURCES = src/scanner.c src/dtddata.S
wayland_scanner_SOURCES = src/scanner.c
wayland_scanner_CFLAGS = $(EXPAT_CFLAGS) $(LIBXML_CFLAGS) $(AM_CFLAGS)
wayland_scanner_LDADD = $(EXPAT_LIBS) $(LIBXML_LIBS) libwayland-util.la
pkgconfig_DATA += src/wayland-scanner.pc
if DTD_VALIDATION
wayland_scanner_SOURCES += src/dtddata.S
endif
src/dtddata.o: protocol/wayland.dtd
if USE_HOST_SCANNER

5
configure.ac
View File

@ -85,7 +85,7 @@ AC_ARG_ENABLE([dtd-validation],
[AC_HELP_STRING([--disable-dtd-validation],
[Disable DTD validation of the protocol])],
[],
[enable_dtdvalidation=yes])
[enable_dtd_validation=yes])
AM_CONDITIONAL(USE_HOST_SCANNER, test "x$with_host_scanner" = xyes)
@ -121,7 +121,8 @@ PKG_CHECK_MODULES(EXPAT, [expat], [],
AC_SUBST(EXPAT_LIBS)
])
if test "x$enable_dtdvalidation" = "xyes"; then
AM_CONDITIONAL([DTD_VALIDATION], [test "x$enable_dtd_validation" = "xyes"])
if test "x$enable_dtd_validation" = "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])

6
src/scanner.c
View File

@ -40,13 +40,13 @@
#if HAVE_LIBXML
#include <libxml/parser.h>
#endif
#include "wayland-util.h"
/* Embedded wayland.dtd file, see dtddata.S */
extern char DTD_DATA_begin;
extern int DTD_DATA_len;
#endif
#include "wayland-util.h"
enum side {
CLIENT,