diff options
Diffstat (limited to 'font-util/aclocal.m4')
| -rw-r--r--[-rwxr-xr-x] | font-util/aclocal.m4 | 1074 |
1 files changed, 825 insertions, 249 deletions
diff --git a/font-util/aclocal.m4 b/font-util/aclocal.m4 index 6be78d7..e80cba0 100755..100644 --- a/font-util/aclocal.m4 +++ b/font-util/aclocal.m4 @@ -406,18 +406,6 @@ AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS], [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"]) ]) -# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005 -# Free Software Foundation, Inc. -# -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -# serial 8 - -# AM_CONFIG_HEADER is obsolete. It has been replaced by AC_CONFIG_HEADERS. -AU_DEFUN([AM_CONFIG_HEADER], [AC_CONFIG_HEADERS($@)]) - # Do all the work for Automake. -*- Autoconf -*- # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, @@ -1028,6 +1016,162 @@ AC_SUBST([am__tar]) AC_SUBST([am__untar]) ]) # _AM_PROG_TAR +# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- +# +# Copyright © 2004 Scott James Remnant <scott@netsplit.com>. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# PKG_PROG_PKG_CONFIG([MIN-VERSION]) +# ---------------------------------- +AC_DEFUN([PKG_PROG_PKG_CONFIG], +[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) +m4_pattern_allow([^PKG_CONFIG(_PATH)?$]) +AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl +if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then + AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) +fi +if test -n "$PKG_CONFIG"; then + _pkg_min_version=m4_default([$1], [0.9.0]) + AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) + if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + PKG_CONFIG="" + fi + +fi[]dnl +])# PKG_PROG_PKG_CONFIG + +# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +# +# Check to see whether a particular set of modules exists. Similar +# to PKG_CHECK_MODULES(), but does not set variables or print errors. +# +# +# Similar to PKG_CHECK_MODULES, make sure that the first instance of +# this or PKG_CHECK_MODULES is called, or make sure to call +# PKG_CHECK_EXISTS manually +# -------------------------------------------------------------- +AC_DEFUN([PKG_CHECK_EXISTS], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +if test -n "$PKG_CONFIG" && \ + AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then + m4_ifval([$2], [$2], [:]) +m4_ifvaln([$3], [else + $3])dnl +fi]) + + +# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) +# --------------------------------------------- +m4_define([_PKG_CONFIG], +[if test -n "$$1"; then + pkg_cv_[]$1="$$1" + elif test -n "$PKG_CONFIG"; then + PKG_CHECK_EXISTS([$3], + [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`], + [pkg_failed=yes]) + else + pkg_failed=untried +fi[]dnl +])# _PKG_CONFIG + +# _PKG_SHORT_ERRORS_SUPPORTED +# ----------------------------- +AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi[]dnl +])# _PKG_SHORT_ERRORS_SUPPORTED + + +# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], +# [ACTION-IF-NOT-FOUND]) +# +# +# Note that if there is a possibility the first call to +# PKG_CHECK_MODULES might not happen, you should be sure to include an +# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac +# +# +# -------------------------------------------------------------- +AC_DEFUN([PKG_CHECK_MODULES], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl +AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl + +pkg_failed=no +AC_MSG_CHECKING([for $1]) + +_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) +_PKG_CONFIG([$1][_LIBS], [libs], [$2]) + +m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS +and $1[]_LIBS to avoid the need to call pkg-config. +See the pkg-config man page for more details.]) + +if test $pkg_failed = yes; then + _PKG_SHORT_ERRORS_SUPPORTED + if test $_pkg_short_errors_supported = yes; then + $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1` + else + $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD + + ifelse([$4], , [AC_MSG_ERROR(dnl +[Package requirements ($2) were not met: + +$$1_PKG_ERRORS + +Consider adjusting the PKG_CONFIG_PATH environment variable if you +installed software in a non-standard prefix. + +_PKG_TEXT +])], + [AC_MSG_RESULT([no]) + $4]) +elif test $pkg_failed = untried; then + ifelse([$4], , [AC_MSG_FAILURE(dnl +[The pkg-config script could not be found or is too old. Make sure it +is in your PATH or set the PKG_CONFIG environment variable to the full +path to pkg-config. + +_PKG_TEXT + +To get pkg-config, see <http://pkg-config.freedesktop.org/>.])], + [$4]) +else + $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS + $1[]_LIBS=$pkg_cv_[]$1[]_LIBS + AC_MSG_RESULT([yes]) + ifelse([$3], , :, [$3]) +fi[]dnl +])# PKG_CHECK_MODULES + dnl xorg-macros.m4. Generated from xorg-macros.m4.in xorgversion.m4 by configure. dnl dnl Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved. @@ -1067,7 +1211,7 @@ dnl DEALINGS IN THE SOFTWARE. # See the "minimum version" comment for each macro you use to see what # version you require. m4_defun([XORG_MACROS_VERSION],[ -m4_define([vers_have], [1.10.1]) +m4_define([vers_have], [1.16.1]) m4_define([maj_have], m4_substr(vers_have, 0, m4_index(vers_have, [.]))) m4_define([maj_needed], m4_substr([$1], 0, m4_index([$1], [.]))) m4_if(m4_cmp(maj_have, maj_needed), 0,, @@ -1094,7 +1238,7 @@ AC_PATH_PROGS(RAWCPP, [cpp], [${CPP}], # which is not the best choice for supporting other OS'es, but covers most # of the ones we need for now. AC_MSG_CHECKING([if $RAWCPP requires -undef]) -AC_LANG_CONFTEST([Does cpp redefine unix ?]) +AC_LANG_CONFTEST([AC_LANG_SOURCE([[Does cpp redefine unix ?]])]) if test `${RAWCPP} < conftest.$ac_ext | grep -c 'unix'` -eq 1 ; then AC_MSG_RESULT([no]) else @@ -1112,7 +1256,7 @@ fi rm -f conftest.$ac_ext AC_MSG_CHECKING([if $RAWCPP requires -traditional]) -AC_LANG_CONFTEST([Does cpp preserve "whitespace"?]) +AC_LANG_CONFTEST([AC_LANG_SOURCE([[Does cpp preserve "whitespace"?]])]) if test `${RAWCPP} < conftest.$ac_ext | grep -c 'preserve \"'` -eq 1 ; then AC_MSG_RESULT([no]) else @@ -1376,15 +1520,17 @@ AC_SUBST(MAKE_PDF) AC_SUBST(MAKE_HTML) ]) # XORG_CHECK_DOCBOOK -# XORG_WITH_XMLTO([MIN-VERSION]) +# XORG_WITH_XMLTO([MIN-VERSION], [DEFAULT]) # ---------------- # Minimum version: 1.5.0 +# Minimum version for optional DEFAULT argument: 1.11.0 # # Documentation tools are not always available on all platforms and sometimes # not at the appropriate level. This macro enables a module to test for the # presence of the tool and obtain it's path in separate variables. Coupled with # the --with-xmlto option, it allows maximum flexibilty in making decisions -# as whether or not to use the xmlto package. +# as whether or not to use the xmlto package. When DEFAULT is not specified, +# --with-xmlto assumes 'auto'. # # Interface to module: # HAVE_XMLTO: used in makefiles to conditionally generate documentation @@ -1401,10 +1547,12 @@ AC_SUBST(MAKE_HTML) # AC_DEFUN([XORG_WITH_XMLTO],[ AC_ARG_VAR([XMLTO], [Path to xmlto command]) +m4_define([_defopt], m4_default([$2], [auto])) AC_ARG_WITH(xmlto, AS_HELP_STRING([--with-xmlto], - [Use xmlto to regenerate documentation (default: yes, if installed)]), - [use_xmlto=$withval], [use_xmlto=auto]) + [Use xmlto to regenerate documentation (default: ]_defopt[)]), + [use_xmlto=$withval], [use_xmlto=]_defopt) +m4_undefine([_defopt]) if test "x$use_xmlto" = x"auto"; then AC_PATH_PROG([XMLTO], [xmlto]) @@ -1458,15 +1606,134 @@ AM_CONDITIONAL([HAVE_XMLTO_TEXT], [test $have_xmlto_text = yes]) AM_CONDITIONAL([HAVE_XMLTO], [test "$have_xmlto" = yes]) ]) # XORG_WITH_XMLTO -# XORG_WITH_ASCIIDOC([MIN-VERSION]) +# XORG_WITH_XSLTPROC([MIN-VERSION], [DEFAULT]) +# -------------------------------------------- +# Minimum version: 1.12.0 +# Minimum version for optional DEFAULT argument: 1.12.0 +# +# XSLT (Extensible Stylesheet Language Transformations) is a declarative, +# XML-based language used for the transformation of XML documents. +# The xsltproc command line tool is for applying XSLT stylesheets to XML documents. +# It is used under the cover by xmlto to generate html files from DocBook/XML. +# The XSLT processor is often used as a standalone tool for transformations. +# It should not be assumed that this tool is used only to work with documnetation. +# When DEFAULT is not specified, --with-xsltproc assumes 'auto'. +# +# Interface to module: +# HAVE_XSLTPROC: used in makefiles to conditionally generate documentation +# XSLTPROC: returns the path of the xsltproc program found +# returns the path set by the user in the environment +# --with-xsltproc: 'yes' user instructs the module to use xsltproc +# 'no' user instructs the module not to use xsltproc +# have_xsltproc: returns yes if xsltproc found in PATH or no +# +# If the user sets the value of XSLTPROC, AC_PATH_PROG skips testing the path. +# +AC_DEFUN([XORG_WITH_XSLTPROC],[ +AC_ARG_VAR([XSLTPROC], [Path to xsltproc command]) +# Preserves the interface, should it be implemented later +m4_ifval([$1], [m4_warn([syntax], [Checking for xsltproc MIN-VERSION is not implemented])]) +m4_define([_defopt], m4_default([$2], [auto])) +AC_ARG_WITH(xsltproc, + AS_HELP_STRING([--with-xsltproc], + [Use xsltproc for the transformation of XML documents (default: ]_defopt[)]), + [use_xsltproc=$withval], [use_xsltproc=]_defopt) +m4_undefine([_defopt]) + +if test "x$use_xsltproc" = x"auto"; then + AC_PATH_PROG([XSLTPROC], [xsltproc]) + if test "x$XSLTPROC" = "x"; then + AC_MSG_WARN([xsltproc not found - cannot transform XML documents]) + have_xsltproc=no + else + have_xsltproc=yes + fi +elif test "x$use_xsltproc" = x"yes" ; then + AC_PATH_PROG([XSLTPROC], [xsltproc]) + if test "x$XSLTPROC" = "x"; then + AC_MSG_ERROR([--with-xsltproc=yes specified but xsltproc not found in PATH]) + fi + have_xsltproc=yes +elif test "x$use_xsltproc" = x"no" ; then + if test "x$XSLTPROC" != "x"; then + AC_MSG_WARN([ignoring XSLTPROC environment variable since --with-xsltproc=no was specified]) + fi + have_xsltproc=no +else + AC_MSG_ERROR([--with-xsltproc expects 'yes' or 'no']) +fi + +AM_CONDITIONAL([HAVE_XSLTPROC], [test "$have_xsltproc" = yes]) +]) # XORG_WITH_XSLTPROC + +# XORG_WITH_PERL([MIN-VERSION], [DEFAULT]) +# ---------------------------------------- +# Minimum version: 1.15.0 +# +# PERL (Practical Extraction and Report Language) is a language optimized for +# scanning arbitrary text files, extracting information from those text files, +# and printing reports based on that information. +# +# When DEFAULT is not specified, --with-perl assumes 'auto'. +# +# Interface to module: +# HAVE_PERL: used in makefiles to conditionally scan text files +# PERL: returns the path of the perl program found +# returns the path set by the user in the environment +# --with-perl: 'yes' user instructs the module to use perl +# 'no' user instructs the module not to use perl +# have_perl: returns yes if perl found in PATH or no +# +# If the user sets the value of PERL, AC_PATH_PROG skips testing the path. +# +AC_DEFUN([XORG_WITH_PERL],[ +AC_ARG_VAR([PERL], [Path to perl command]) +# Preserves the interface, should it be implemented later +m4_ifval([$1], [m4_warn([syntax], [Checking for perl MIN-VERSION is not implemented])]) +m4_define([_defopt], m4_default([$2], [auto])) +AC_ARG_WITH(perl, + AS_HELP_STRING([--with-perl], + [Use perl for extracting information from files (default: ]_defopt[)]), + [use_perl=$withval], [use_perl=]_defopt) +m4_undefine([_defopt]) + +if test "x$use_perl" = x"auto"; then + AC_PATH_PROG([PERL], [perl]) + if test "x$PERL" = "x"; then + AC_MSG_WARN([perl not found - cannot extract information and report]) + have_perl=no + else + have_perl=yes + fi +elif test "x$use_perl" = x"yes" ; then + AC_PATH_PROG([PERL], [perl]) + if test "x$PERL" = "x"; then + AC_MSG_ERROR([--with-perl=yes specified but perl not found in PATH]) + fi + have_perl=yes +elif test "x$use_perl" = x"no" ; then + if test "x$PERL" != "x"; then + AC_MSG_WARN([ignoring PERL environment variable since --with-perl=no was specified]) + fi + have_perl=no +else + AC_MSG_ERROR([--with-perl expects 'yes' or 'no']) +fi + +AM_CONDITIONAL([HAVE_PERL], [test "$have_perl" = yes]) +]) # XORG_WITH_PERL + +# XORG_WITH_ASCIIDOC([MIN-VERSION], [DEFAULT]) # ---------------- # Minimum version: 1.5.0 +# Minimum version for optional DEFAULT argument: 1.11.0 # # Documentation tools are not always available on all platforms and sometimes # not at the appropriate level. This macro enables a module to test for the # presence of the tool and obtain it's path in separate variables. Coupled with # the --with-asciidoc option, it allows maximum flexibilty in making decisions -# as whether or not to use the asciidoc package. +# as whether or not to use the asciidoc package. When DEFAULT is not specified, +# --with-asciidoc assumes 'auto'. # # Interface to module: # HAVE_ASCIIDOC: used in makefiles to conditionally generate documentation @@ -1479,10 +1746,12 @@ AM_CONDITIONAL([HAVE_XMLTO], [test "$have_xmlto" = yes]) # AC_DEFUN([XORG_WITH_ASCIIDOC],[ AC_ARG_VAR([ASCIIDOC], [Path to asciidoc command]) +m4_define([_defopt], m4_default([$2], [auto])) AC_ARG_WITH(asciidoc, AS_HELP_STRING([--with-asciidoc], - [Use asciidoc to regenerate documentation (default: yes, if installed)]), - [use_asciidoc=$withval], [use_asciidoc=auto]) + [Use asciidoc to regenerate documentation (default: ]_defopt[)]), + [use_asciidoc=$withval], [use_asciidoc=]_defopt) +m4_undefine([_defopt]) if test "x$use_asciidoc" = x"auto"; then AC_PATH_PROG([ASCIIDOC], [asciidoc]) @@ -1523,15 +1792,17 @@ fi]) AM_CONDITIONAL([HAVE_ASCIIDOC], [test "$have_asciidoc" = yes]) ]) # XORG_WITH_ASCIIDOC -# XORG_WITH_DOXYGEN([MIN-VERSION]) +# XORG_WITH_DOXYGEN([MIN-VERSION], [DEFAULT]) # -------------------------------- # Minimum version: 1.5.0 +# Minimum version for optional DEFAULT argument: 1.11.0 # # Documentation tools are not always available on all platforms and sometimes # not at the appropriate level. This macro enables a module to test for the # presence of the tool and obtain it's path in separate variables. Coupled with # the --with-doxygen option, it allows maximum flexibilty in making decisions -# as whether or not to use the doxygen package. +# as whether or not to use the doxygen package. When DEFAULT is not specified, +# --with-doxygen assumes 'auto'. # # Interface to module: # HAVE_DOXYGEN: used in makefiles to conditionally generate documentation @@ -1544,10 +1815,12 @@ AM_CONDITIONAL([HAVE_ASCIIDOC], [test "$have_asciidoc" = yes]) # AC_DEFUN([XORG_WITH_DOXYGEN],[ AC_ARG_VAR([DOXYGEN], [Path to doxygen command]) +m4_define([_defopt], m4_default([$2], [auto])) AC_ARG_WITH(doxygen, AS_HELP_STRING([--with-doxygen], - [Use doxygen to regenerate documentation (default: yes, if installed)]), - [use_doxygen=$withval], [use_doxygen=auto]) + [Use doxygen to regenerate documentation (default: ]_defopt[)]), + [use_doxygen=$withval], [use_doxygen=]_defopt) +m4_undefine([_defopt]) if test "x$use_doxygen" = x"auto"; then AC_PATH_PROG([DOXYGEN], [doxygen]) @@ -1588,15 +1861,17 @@ fi]) AM_CONDITIONAL([HAVE_DOXYGEN], [test "$have_doxygen" = yes]) ]) # XORG_WITH_DOXYGEN -# XORG_WITH_GROFF +# XORG_WITH_GROFF([DEFAULT]) # ---------------- # Minimum version: 1.6.0 +# Minimum version for optional DEFAULT argument: 1.11.0 # # Documentation tools are not always available on all platforms and sometimes # not at the appropriate level. This macro enables a module to test for the # presence of the tool and obtain it's path in separate variables. Coupled with # the --with-groff option, it allows maximum flexibilty in making decisions -# as whether or not to use the groff package. +# as whether or not to use the groff package. When DEFAULT is not specified, +# --with-groff assumes 'auto'. # # Interface to module: # HAVE_GROFF: used in makefiles to conditionally generate documentation @@ -1625,10 +1900,12 @@ AM_CONDITIONAL([HAVE_DOXYGEN], [test "$have_doxygen" = yes]) # AC_DEFUN([XORG_WITH_GROFF],[ AC_ARG_VAR([GROFF], [Path to groff command]) +m4_define([_defopt], m4_default([$1], [auto])) AC_ARG_WITH(groff, AS_HELP_STRING([--with-groff], - [Use groff to regenerate documentation (default: yes, if installed)]), - [use_groff=$withval], [use_groff=auto]) + [Use groff to regenerate documentation (default: ]_defopt[)]), + [use_groff=$withval], [use_groff=]_defopt) +m4_undefine([_defopt]) if test "x$use_groff" = x"auto"; then AC_PATH_PROG([GROFF], [groff]) @@ -1691,15 +1968,18 @@ AM_CONDITIONAL([HAVE_GROFF_MM], [test "$groff_mm_works" = yes]) AM_CONDITIONAL([HAVE_GROFF_HTML], [test "$have_groff_html" = yes]) ]) # XORG_WITH_GROFF -# XORG_WITH_FOP -# ---------------- +# XORG_WITH_FOP([MIN-VERSION], [DEFAULT]) +# --------------------------------------- # Minimum version: 1.6.0 +# Minimum version for optional DEFAULT argument: 1.11.0 +# Minimum version for optional MIN-VERSION argument: 1.15.0 # # Documentation tools are not always available on all platforms and sometimes # not at the appropriate level. This macro enables a module to test for the # presence of the tool and obtain it's path in separate variables. Coupled with # the --with-fop option, it allows maximum flexibilty in making decisions -# as whether or not to use the fop package. +# as whether or not to use the fop package. When DEFAULT is not specified, +# --with-fop assumes 'auto'. # # Interface to module: # HAVE_FOP: used in makefiles to conditionally generate documentation @@ -1712,10 +1992,12 @@ AM_CONDITIONAL([HAVE_GROFF_HTML], [test "$have_groff_html" = yes]) # AC_DEFUN([XORG_WITH_FOP],[ AC_ARG_VAR([FOP], [Path to fop command]) +m4_define([_defopt], m4_default([$2], [auto])) AC_ARG_WITH(fop, AS_HELP_STRING([--with-fop], - [Use fop to regenerate documentation (default: yes, if installed)]), - [use_fop=$withval], [use_fop=auto]) + [Use fop to regenerate documentation (default: ]_defopt[)]), + [use_fop=$withval], [use_fop=]_defopt) +m4_undefine([_defopt]) if test "x$use_fop" = x"auto"; then AC_PATH_PROG([FOP], [fop]) @@ -1739,18 +2021,36 @@ elif test "x$use_fop" = x"no" ; then else AC_MSG_ERROR([--with-fop expects 'yes' or 'no']) fi + +# Test for a minimum version of fop, if provided. +m4_ifval([$1], +[if test "$have_fop" = yes; then + # scrape the fop version + AC_MSG_CHECKING([for fop minimum version]) + fop_version=`$FOP -version 2>/dev/null | cut -d' ' -f3` + AC_MSG_RESULT([$fop_version]) + AS_VERSION_COMPARE([$fop_version], [$1], + [if test "x$use_fop" = xauto; then + AC_MSG_WARN([fop version $fop_version found, but $1 needed]) + have_fop=no + else + AC_MSG_ERROR([fop version $fop_version found, but $1 needed]) + fi]) +fi]) AM_CONDITIONAL([HAVE_FOP], [test "$have_fop" = yes]) ]) # XORG_WITH_FOP -# XORG_WITH_PS2PDF +# XORG_WITH_PS2PDF([DEFAULT]) # ---------------- # Minimum version: 1.6.0 +# Minimum version for optional DEFAULT argument: 1.11.0 # # Documentation tools are not always available on all platforms and sometimes # not at the appropriate level. This macro enables a module to test for the # presence of the tool and obtain it's path in separate variables. Coupled with # the --with-ps2pdf option, it allows maximum flexibilty in making decisions -# as whether or not to use the ps2pdf package. +# as whether or not to use the ps2pdf package. When DEFAULT is not specified, +# --with-ps2pdf assumes 'auto'. # # Interface to module: # HAVE_PS2PDF: used in makefiles to conditionally generate documentation @@ -1763,10 +2063,12 @@ AM_CONDITIONAL([HAVE_FOP], [test "$have_fop" = yes]) # AC_DEFUN([XORG_WITH_PS2PDF],[ AC_ARG_VAR([PS2PDF], [Path to ps2pdf command]) +m4_define([_defopt], m4_default([$1], [auto])) AC_ARG_WITH(ps2pdf, AS_HELP_STRING([--with-ps2pdf], - [Use ps2pdf to regenerate documentation (default: yes, if installed)]), - [use_ps2pdf=$withval], [use_ps2pdf=auto]) + [Use ps2pdf to regenerate documentation (default: ]_defopt[)]), + [use_ps2pdf=$withval], [use_ps2pdf=]_defopt) +m4_undefine([_defopt]) if test "x$use_ps2pdf" = x"auto"; then AC_PATH_PROG([PS2PDF], [ps2pdf]) @@ -1817,14 +2119,12 @@ AM_CONDITIONAL([HAVE_PS2PDF], [test "$have_ps2pdf" = yes]) # parm1: specify the default value, yes or no. # AC_DEFUN([XORG_ENABLE_DOCS],[ -default=$1 -if test "x$default" = x ; then - default="yes" -fi +m4_define([docs_default], m4_default([$1], [yes])) AC_ARG_ENABLE(docs, AS_HELP_STRING([--enable-docs], - [Enable building the documentation (default: yes)]), - [build_docs=$enableval], [build_docs=$default]) + [Enable building the documentation (default: ]docs_default[)]), + [build_docs=$enableval], [build_docs=]docs_default) +m4_undefine([docs_default]) AM_CONDITIONAL(ENABLE_DOCS, [test x$build_docs = xyes]) AC_MSG_CHECKING([whether to build documentation]) AC_MSG_RESULT([$build_docs]) @@ -1852,14 +2152,12 @@ AC_MSG_RESULT([$build_docs]) # parm1: specify the default value, yes or no. # AC_DEFUN([XORG_ENABLE_DEVEL_DOCS],[ -devel_default=$1 -if test "x$devel_default" = x ; then - devel_default="yes" -fi +m4_define([devel_default], m4_default([$1], [yes])) AC_ARG_ENABLE(devel-docs, AS_HELP_STRING([--enable-devel-docs], - [Enable building the developer documentation (default: yes)]), - [build_devel_docs=$enableval], [build_devel_docs=$devel_default]) + [Enable building the developer documentation (default: ]devel_default[)]), + [build_devel_docs=$enableval], [build_devel_docs=]devel_default) +m4_undefine([devel_default]) AM_CONDITIONAL(ENABLE_DEVEL_DOCS, [test x$build_devel_docs = xyes]) AC_MSG_CHECKING([whether to build developer documentation]) AC_MSG_RESULT([$build_devel_docs]) @@ -1887,19 +2185,262 @@ AC_MSG_RESULT([$build_devel_docs]) # parm1: specify the default value, yes or no. # AC_DEFUN([XORG_ENABLE_SPECS],[ -spec_default=$1 -if test "x$spec_default" = x ; then - spec_default="yes" -fi +m4_define([spec_default], m4_default([$1], [yes])) AC_ARG_ENABLE(specs, AS_HELP_STRING([--enable-specs], - [Enable building the specs (default: yes)]), - [build_specs=$enableval], [build_specs=$spec_default]) + [Enable building the specs (default: ]spec_default[)]), + [build_specs=$enableval], [build_specs=]spec_default) +m4_undefine([spec_default]) AM_CONDITIONAL(ENABLE_SPECS, [test x$build_specs = xyes]) AC_MSG_CHECKING([whether to build functional specifications]) AC_MSG_RESULT([$build_specs]) ]) # XORG_ENABLE_SPECS +# XORG_ENABLE_UNIT_TESTS (enable_unit_tests=auto) +# ---------------------------------------------- +# Minimum version: 1.13.0 +# +# This macro enables a builder to enable/disable unit testing +# It makes no assumption about the test cases implementation +# Test cases may or may not use Automake "Support for test suites" +# They may or may not use the software utility library GLib +# +# When used in conjunction with XORG_WITH_GLIB, use both AM_CONDITIONAL +# ENABLE_UNIT_TESTS and HAVE_GLIB. Not all unit tests may use glib. +# The variable enable_unit_tests is used by other macros in this file. +# +# Interface to module: +# ENABLE_UNIT_TESTS: used in makefiles to conditionally build tests +# enable_unit_tests: used in configure.ac for additional configuration +# --enable-unit-tests: 'yes' user instructs the module to build tests +# 'no' user instructs the module not to build tests +# parm1: specify the default value, yes or no. +# +AC_DEFUN([XORG_ENABLE_UNIT_TESTS],[ +AC_BEFORE([$0], [XORG_WITH_GLIB]) +AC_BEFORE([$0], [XORG_LD_WRAP]) +AC_REQUIRE([XORG_MEMORY_CHECK_FLAGS]) +m4_define([_defopt], m4_default([$1], [auto])) +AC_ARG_ENABLE(unit-tests, AS_HELP_STRING([--enable-unit-tests], + [Enable building unit test cases (default: ]_defopt[)]), + [enable_unit_tests=$enableval], [enable_unit_tests=]_defopt) +m4_undefine([_defopt]) +AM_CONDITIONAL(ENABLE_UNIT_TESTS, [test "x$enable_unit_tests" != xno]) +AC_MSG_CHECKING([whether to build unit test cases]) +AC_MSG_RESULT([$enable_unit_tests]) +]) # XORG_ENABLE_UNIT_TESTS + +# XORG_WITH_GLIB([MIN-VERSION], [DEFAULT]) +# ---------------------------------------- +# Minimum version: 1.13.0 +# +# GLib is a library which provides advanced data structures and functions. +# This macro enables a module to test for the presence of Glib. +# +# When used with ENABLE_UNIT_TESTS, it is assumed GLib is used for unit testing. +# Otherwise the value of $enable_unit_tests is blank. +# +# Interface to module: +# HAVE_GLIB: used in makefiles to conditionally build targets +# with_glib: used in configure.ac to know if GLib has been found +# --with-glib: 'yes' user instructs the module to use glib +# 'no' user instructs the module not to use glib +# +AC_DEFUN([XORG_WITH_GLIB],[ +AC_REQUIRE([PKG_PROG_PKG_CONFIG]) +m4_define([_defopt], m4_default([$2], [auto])) +AC_ARG_WITH(glib, AS_HELP_STRING([--with-glib], + [Use GLib library for unit testing (default: ]_defopt[)]), + [with_glib=$withval], [with_glib=]_defopt) +m4_undefine([_defopt]) + +have_glib=no +# Do not probe GLib if user explicitly disabled unit testing +if test "x$enable_unit_tests" != x"no"; then + # Do not probe GLib if user explicitly disabled it + if test "x$with_glib" != x"no"; then + m4_ifval( + [$1], + [PKG_CHECK_MODULES([GLIB], [glib-2.0 >= $1], [have_glib=yes], [have_glib=no])], + [PKG_CHECK_MODULES([GLIB], [glib-2.0], [have_glib=yes], [have_glib=no])] + ) + fi +fi + +# Not having GLib when unit testing has been explicitly requested is an error +if test "x$enable_unit_tests" = x"yes"; then + if test "x$have_glib" = x"no"; then + AC_MSG_ERROR([--enable-unit-tests=yes specified but glib-2.0 not found]) + fi +fi + +# Having unit testing disabled when GLib has been explicitly requested is an error +if test "x$enable_unit_tests" = x"no"; then + if test "x$with_glib" = x"yes"; then + AC_MSG_ERROR([--enable-unit-tests=yes specified but glib-2.0 not found]) + fi +fi + +# Not having GLib when it has been explicitly requested is an error +if test "x$with_glib" = x"yes"; then + if test "x$have_glib" = x"no"; then + AC_MSG_ERROR([--with-glib=yes specified but glib-2.0 not found]) + fi +fi + +AM_CONDITIONAL([HAVE_GLIB], [test "$have_glib" = yes]) +]) # XORG_WITH_GLIB + +# XORG_LD_WRAP([required|optional]) +# --------------------------------- +# Minimum version: 1.13.0 +# +# Check if linker supports -wrap, passed via compiler flags +# +# When used with ENABLE_UNIT_TESTS, it is assumed -wrap is used for unit testing. +# Otherwise the value of $enable_unit_tests is blank. +# +# Argument added in 1.16.0 - default is "required", to match existing behavior +# of returning an error if enable_unit_tests is yes, and ld -wrap is not +# available, an argument of "optional" allows use when some unit tests require +# ld -wrap and others do not. +# +AC_DEFUN([XORG_LD_WRAP],[ +XORG_CHECK_LINKER_FLAGS([-Wl,-wrap,exit],[have_ld_wrap=yes],[have_ld_wrap=no], + [AC_LANG_PROGRAM([#include <stdlib.h> + void __wrap_exit(int status) { return; }], + [exit(0);])]) +# Not having ld wrap when unit testing has been explicitly requested is an error +if test "x$enable_unit_tests" = x"yes" -a "x$1" != "xoptional"; then + if test "x$have_ld_wrap" = x"no"; then + AC_MSG_ERROR([--enable-unit-tests=yes specified but ld -wrap support is not available]) + fi +fi +AM_CONDITIONAL([HAVE_LD_WRAP], [test "$have_ld_wrap" = yes]) +# +]) # XORG_LD_WRAP + +# XORG_CHECK_LINKER_FLAGS +# ----------------------- +# SYNOPSIS +# +# XORG_CHECK_LINKER_FLAGS(FLAGS, [ACTION-SUCCESS], [ACTION-FAILURE], [PROGRAM-SOURCE]) +# +# DESCRIPTION +# +# Check whether the given linker FLAGS work with the current language's +# linker, or whether they give an error. +# +# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on +# success/failure. +# +# PROGRAM-SOURCE is the program source to link with, if needed +# +# NOTE: Based on AX_CHECK_COMPILER_FLAGS. +# +# LICENSE +# +# Copyright (c) 2009 Mike Frysinger <vapier@gentoo.org> +# Copyright (c) 2009 Steven G. Johnson <stevenj@alum.mit.edu> +# Copyright (c) 2009 Matteo Frigo +# +# This program is free software: you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +# Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program. If not, see <http://www.gnu.org/licenses/>. +# +# As a special exception, the respective Autoconf Macro's copyright owner +# gives unlimited permission to copy, distribute and modify the configure +# scripts that are the output of Autoconf when processing the Macro. You +# need not follow the terms of the GNU General Public License when using +# or distributing such scripts, even though portions of the text of the +# Macro appear in them. The GNU General Public License (GPL) does govern +# all other use of the material that constitutes the Autoconf Macro. +# +# This special exception to the GPL applies to versions of the Autoconf +# Macro released by the Autoconf Archive. When you make and distribute a +# modified version of the Autoconf Macro, you may extend this special +# exception to the GPL to apply to your modified version as well.# +AC_DEFUN([XORG_CHECK_LINKER_FLAGS], +[AC_MSG_CHECKING([whether the linker accepts $1]) +dnl Some hackery here since AC_CACHE_VAL can't handle a non-literal varname: +AS_LITERAL_IF([$1], + [AC_CACHE_VAL(AS_TR_SH(xorg_cv_linker_flags_[$1]), [ + ax_save_FLAGS=$LDFLAGS + LDFLAGS="$1" + AC_LINK_IFELSE([m4_default([$4],[AC_LANG_PROGRAM()])], + AS_TR_SH(xorg_cv_linker_flags_[$1])=yes, + AS_TR_SH(xorg_cv_linker_flags_[$1])=no) + LDFLAGS=$ax_save_FLAGS])], + [ax_save_FLAGS=$LDFLAGS + LDFLAGS="$1" + AC_LINK_IFELSE([AC_LANG_PROGRAM()], + eval AS_TR_SH(xorg_cv_linker_flags_[$1])=yes, + eval AS_TR_SH(xorg_cv_linker_flags_[$1])=no) + LDFLAGS=$ax_save_FLAGS]) +eval xorg_check_linker_flags=$AS_TR_SH(xorg_cv_linker_flags_[$1]) +AC_MSG_RESULT($xorg_check_linker_flags) +if test "x$xorg_check_linker_flags" = xyes; then + m4_default([$2], :) +else + m4_default([$3], :) +fi +]) # XORG_CHECK_LINKER_FLAGS + +# XORG_MEMORY_CHECK_FLAGS +# ----------------------- +# Minimum version: 1.16.0 +# +# This macro attempts to find appropriate memory checking functionality +# for various platforms which unit testing code may use to catch various +# forms of memory allocation and access errors in testing. +# +# Interface to module: +# XORG_MALLOC_DEBUG_ENV - environment variables to set to enable debugging +# Usually added to TESTS_ENVIRONMENT in Makefile.am +# +# If the user sets the value of XORG_MALLOC_DEBUG_ENV, it is used verbatim. +# +AC_DEFUN([XORG_MEMORY_CHECK_FLAGS],[ + +AC_REQUIRE([AC_CANONICAL_HOST]) +AC_ARG_VAR([XORG_MALLOC_DEBUG_ENV], + [Environment variables to enable memory checking in tests]) + +# Check for different types of support on different platforms +case $host_os in + solaris*) + AC_CHECK_LIB([umem], [umem_alloc], + [malloc_debug_env='LD_PRELOAD=libumem.so UMEM_DEBUG=default']) + ;; + *-gnu*) # GNU libc - Value is used as a single byte bit pattern, + # both directly and inverted, so should not be 0 or 255. + malloc_debug_env='MALLOC_PERTURB_=15' + ;; + darwin*) + malloc_debug_env='MallocPreScribble=1 MallocScribble=1 DYLD_INSERT_LIBRARIES=/usr/lib/libgmalloc.dylib' + ;; + *bsd*) + malloc_debug_env='MallocPreScribble=1 MallocScribble=1' + ;; +esac + +# User supplied flags override default flags +if test "x$XORG_MALLOC_DEBUG_ENV" != "x"; then + malloc_debug_env="$XORG_MALLOC_DEBUG_ENV" +fi + +AC_SUBST([XORG_MALLOC_DEBUG_ENV],[$malloc_debug_env]) +]) # XORG_WITH_LINT + # XORG_CHECK_MALLOC_ZERO # ---------------------- # Minimum version: 1.0.0 @@ -1916,18 +2457,16 @@ AC_ARG_ENABLE(malloc0returnsnull, AC_MSG_CHECKING([whether malloc(0) returns NULL]) if test "x$MALLOC_ZERO_RETURNS_NULL" = xauto; then - AC_RUN_IFELSE([ -char *malloc(); -char *realloc(); -char *calloc(); -main() { + AC_RUN_IFELSE([AC_LANG_PROGRAM([ +#include <stdlib.h> +],[ char *m0, *r0, *c0, *p; m0 = malloc(0); p = malloc(10); r0 = realloc(p,0); - c0 = calloc(0); - exit(m0 == 0 || r0 == 0 || c0 == 0 ? 0 : 1); -}], + c0 = calloc(0,10); + exit((m0 == 0 || r0 == 0 || c0 == 0) ? 0 : 1); +])], [MALLOC_ZERO_RETURNS_NULL=yes], [MALLOC_ZERO_RETURNS_NULL=no], [MALLOC_ZERO_RETURNS_NULL=yes]) @@ -2053,28 +2592,212 @@ AM_CONDITIONAL(MAKE_LINT_LIB, [test x$make_lint_lib != xno]) ]) # XORG_LINT_LIBRARY +# XORG_COMPILER_BRAND +# ------------------- +# Minimum version: 1.14.0 +# +# Checks for various brands of compilers and sets flags as appropriate: +# GNU gcc - relies on AC_PROG_CC (via AC_PROG_CC_C99) to set GCC to "yes" +# clang compiler - sets CLANGCC to "yes" +# Intel compiler - sets INTELCC to "yes" +# Sun/Oracle Solaris Studio cc - sets SUNCC to "yes" +# +AC_DEFUN([XORG_COMPILER_BRAND], [ +AC_REQUIRE([AC_PROG_CC_C99]) +AC_CHECK_DECL([__clang__], [CLANGCC="yes"], [CLANGCC="no"]) +AC_CHECK_DECL([__INTEL_COMPILER], [INTELCC="yes"], [INTELCC="no"]) +AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"]) +]) # XORG_COMPILER_BRAND + +# XORG_TESTSET_CFLAG(<variable>, <flag>, [<alternative flag>, ...]) +# --------------- +# Minimum version: 1.16.0 +# +# Test if the compiler works when passed the given flag as a command line argument. +# If it succeeds, the flag is appeneded to the given variable. If not, it tries the +# next flag in the list until there are no more options. +# +# Note that this does not guarantee that the compiler supports the flag as some +# compilers will simply ignore arguments that they do not understand, but we do +# attempt to weed out false positives by using -Werror=unknown-warning-option and +# -Werror=unused-command-line-argument +# +AC_DEFUN([XORG_TESTSET_CFLAG], [ +AC_REQUIRE([AC_PROG_CC_C99]) +m4_if([$#], 0, [m4_fatal([XORG_TESTSET_CFLAG was given with an unsupported number of arguments])]) +m4_if([$#], 1, [m4_fatal([XORG_TESTSET_CFLAG was given with an unsupported number of arguments])]) + +xorg_testset_save_CFLAGS="$CFLAGS" + +if test "x$xorg_testset_unknown_warning_option" = "x" ; then + CFLAGS="$CFLAGS -Werror=unknown-warning-option" + AC_CACHE_CHECK([if $CC supports -Werror=unknown-warning-option], + xorg_cv_cc_flag_unknown_warning_option, + AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], + [xorg_cv_cc_flag_unknown_warning_option=yes], + [xorg_cv_cc_flag_unknown_warning_option=no])) + xorg_testset_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option + CFLAGS="$xorg_testset_save_CFLAGS" +fi + +if test "x$xorg_testset_unused_command_line_argument" = "x" ; then + if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then + CFLAGS="$CFLAGS -Werror=unknown-warning-option" + fi + CFLAGS="$CFLAGS -Werror=unused-command-line-argument" + AC_CACHE_CHECK([if $CC supports -Werror=unused-command-line-argument], + xorg_cv_cc_flag_unused_command_line_argument, + AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], + [xorg_cv_cc_flag_unused_command_line_argument=yes], + [xorg_cv_cc_flag_unused_command_line_argument=no])) + xorg_testset_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument + CFLAGS="$xorg_testset_save_CFLAGS" +fi + +found="no" +m4_foreach([flag], m4_cdr($@), [ + if test $found = "no" ; then + if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then + CFLAGS="$CFLAGS -Werror=unknown-warning-option" + fi + + if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then + CFLAGS="$CFLAGS -Werror=unused-command-line-argument" + fi + + CFLAGS="$CFLAGS ]flag[" + +dnl Some hackery here since AC_CACHE_VAL can't handle a non-literal varname + AC_MSG_CHECKING([if $CC supports ]flag[]) + cacheid=`AS_ECHO([xorg_cv_cc_flag_]flag[])` + AC_CACHE_VAL(AS_TR_SH($cacheid), + [AC_LINK_IFELSE([AC_LANG_PROGRAM([int i;])], + [eval AS_TR_SH($cacheid)=yes], + [eval AS_TR_SH($cacheid)=no])]) + + CFLAGS="$xorg_testset_save_CFLAGS" + + eval supported=$AS_TR_SH($cacheid) + AC_MSG_RESULT([$supported]) + if test "$supported" = "yes" ; then + $1="$$1 ]flag[" + found="yes" + fi + fi +]) +]) # XORG_TESTSET_CFLAG + +# XORG_COMPILER_FLAGS +# --------------- +# Minimum version: 1.16.0 +# +# Defines BASE_CFLAGS to contain a set of command line arguments supported +# by the selected compiler which do NOT alter the generated code. These +# arguments will cause the compiler to print various warnings during +# compilation AND turn a conservative set of warnings into errors. +# +# The set of flags supported by BASE_CFLAGS will grow in future +# versions of util-macros as options are added to new compilers. +# +AC_DEFUN([XORG_COMPILER_FLAGS], [ +AC_REQUIRE([XORG_COMPILER_BRAND]) + +AC_ARG_ENABLE(selective-werror, + AS_HELP_STRING([--disable-selective-werror], + [Turn off selective compiler errors. (default: enabled)]), + [SELECTIVE_WERROR=$enableval], + [SELECTIVE_WERROR=yes]) + +# -v is too short to test reliably with XORG_TESTSET_CFLAG +if test "x$SUNCC" = "xyes"; then + BASE_CFLAGS="-v" +else + BASE_CFLAGS="" +fi + +# This chunk of warnings were those that existed in the legacy CWARNFLAGS +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wall]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wpointer-arith]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wstrict-prototypes]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wmissing-prototypes]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wmissing-declarations]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wnested-externs]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wbad-function-cast]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wformat=2], [-Wformat]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wold-style-definition]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wdeclaration-after-statement]) + +# This chunk adds additional warnings that could catch undesired effects. +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wunused]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wuninitialized]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wshadow]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wcast-qual]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wmissing-noreturn]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wmissing-format-attribute]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wredundant-decls]) + +# These are currently disabled because they are noisy. They will be enabled +# in the future once the codebase is sufficiently modernized to silence +# them. For now, I don't want them to drown out the other warnings. +# XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wlogical-op]) +# XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wparentheses]) +# XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wcast-align]) + +# Turn some warnings into errors, so we don't accidently get successful builds +# when there are problems that should be fixed. + +if test "x$SELECTIVE_WERROR" = "xyes" ; then +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=implicit], [-errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=nonnull]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=init-self]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=main]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=missing-braces]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=sequence-point]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=return-type], [-errwarn=E_FUNC_HAS_NO_RETURN_STMT]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=trigraphs]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=array-bounds]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=write-strings]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=address]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=int-to-pointer-cast], [-errwarn=E_BAD_PTR_INT_COMBINATION]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Werror=pointer-to-int-cast]) # Also -errwarn=E_BAD_PTR_INT_COMBINATION +else +AC_MSG_WARN([You have chosen not to turn some select compiler warnings into errors. This should not be necessary. Please report why you needed to do so in a bug report at $PACKAGE_BUGREPORT]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wimplicit]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wnonnull]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Winit-self]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wmain]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wmissing-braces]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wsequence-point]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wreturn-type]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wtrigraphs]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Warray-bounds]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wwrite-strings]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Waddress]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wint-to-pointer-cast]) +XORG_TESTSET_CFLAG([BASE_CFLAGS], [-Wpointer-to-int-cast]) +fi + +AC_SUBST([BASE_CFLAGS]) +]) # XORG_COMPILER_FLAGS + # XORG_CWARNFLAGS # --------------- # Minimum version: 1.2.0 +# Deprecated since: 1.16.0 (Use XORG_COMPILER_FLAGS instead) # # Defines CWARNFLAGS to enable C compiler warnings. # +# This function is deprecated because it defines -fno-strict-aliasing +# which alters the code generated by the compiler. If -fno-strict-aliasing +# is needed, then it should be added explicitly in the module when +# it is updated to use BASE_CFLAGS. +# AC_DEFUN([XORG_CWARNFLAGS], [ -AC_REQUIRE([AC_PROG_CC_C99]) +AC_REQUIRE([XORG_COMPILER_FLAGS]) +AC_REQUIRE([XORG_COMPILER_BRAND]) +CWARNFLAGS="$BASE_CFLAGS" if test "x$GCC" = xyes ; then - CWARNFLAGS="-Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes \ --Wmissing-declarations -Wnested-externs -fno-strict-aliasing \ --Wbad-function-cast -Wformat=2" - case `$CC -dumpversion` in - 3.4.* | 4.*) - CWARNFLAGS="$CWARNFLAGS -Wold-style-definition -Wdeclaration-after-statement" - ;; - esac -else - AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"]) - if test "x$SUNCC" = "xyes"; then - CWARNFLAGS="-v" - fi + CWARNFLAGS="$CWARNFLAGS -fno-strict-aliasing" fi AC_SUBST(CWARNFLAGS) ]) # XORG_CWARNFLAGS @@ -2083,28 +2806,36 @@ AC_SUBST(CWARNFLAGS) # ----------------------- # Minimum version: 1.3.0 # -# Add configure option to enable strict compilation +# Add configure option to enable strict compilation flags, such as treating +# warnings as fatal errors. +# If --enable-strict-compilation is passed to configure, adds strict flags to +# $BASE_CFLAGS and the deprecated $CWARNFLAGS. +# +# Starting in 1.14.0 also exports $STRICT_CFLAGS for use in other tests or +# when strict compilation is unconditionally desired. AC_DEFUN([XORG_STRICT_OPTION], [ -# If the module's configure.ac calls AC_PROG_CC later on, CC gets set to C89 -AC_REQUIRE([AC_PROG_CC_C99]) AC_REQUIRE([XORG_CWARNFLAGS]) +AC_REQUIRE([XORG_COMPILER_FLAGS]) AC_ARG_ENABLE(strict-compilation, AS_HELP_STRING([--enable-strict-compilation], [Enable all warnings from compiler and make them errors (default: disabled)]), [STRICT_COMPILE=$enableval], [STRICT_COMPILE=no]) + +STRICT_CFLAGS="" +XORG_TESTSET_CFLAG([STRICT_CFLAGS], [-pedantic]) +XORG_TESTSET_CFLAG([STRICT_CFLAGS], [-Werror], [-errwarn]) + +# Earlier versions of gcc (eg: 4.2) support -Werror=attributes, but do not +# activate it with -Werror, so we add it here explicitly. +XORG_TESTSET_CFLAG([STRICT_CFLAGS], [-Werror=attributes]) + if test "x$STRICT_COMPILE" = "xyes"; then - AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"]) - AC_CHECK_DECL([__INTEL_COMPILER], [INTELCC="yes"], [INTELCC="no"]) - if test "x$GCC" = xyes ; then - STRICT_CFLAGS="-pedantic -Werror" - elif test "x$SUNCC" = "xyes"; then - STRICT_CFLAGS="-errwarn" - elif test "x$INTELCC" = "xyes"; then - STRICT_CFLAGS="-Werror" - fi + BASE_CFLAGS="$BASE_CFLAGS $STRICT_CFLAGS" + CWARNFLAGS="$CWARNFLAGS $STRICT_CFLAGS" fi -CWARNFLAGS="$CWARNFLAGS $STRICT_CFLAGS" +AC_SUBST([STRICT_CFLAGS]) +AC_SUBST([BASE_CFLAGS]) AC_SUBST([CWARNFLAGS]) ]) # XORG_STRICT_OPTION @@ -2116,6 +2847,7 @@ AC_SUBST([CWARNFLAGS]) # AC_DEFUN([XORG_DEFAULT_OPTIONS], [ AC_REQUIRE([AC_PROG_INSTALL]) +XORG_COMPILER_FLAGS XORG_CWARNFLAGS XORG_STRICT_OPTION XORG_RELEASE_VERSION @@ -2207,159 +2939,3 @@ echo 'git directory not found: installing possibly empty changelog.' >&2)" AC_SUBST([CHANGELOG_CMD]) ]) # XORG_CHANGELOG -# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- -# -# Copyright © 2004 Scott James Remnant <scott@netsplit.com>. -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -# -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# PKG_PROG_PKG_CONFIG([MIN-VERSION]) -# ---------------------------------- -AC_DEFUN([PKG_PROG_PKG_CONFIG], -[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) -m4_pattern_allow([^PKG_CONFIG(_PATH)?$]) -AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl -if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then - AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) -fi -if test -n "$PKG_CONFIG"; then - _pkg_min_version=m4_default([$1], [0.9.0]) - AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) - if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then - AC_MSG_RESULT([yes]) - else - AC_MSG_RESULT([no]) - PKG_CONFIG="" - fi - -fi[]dnl -])# PKG_PROG_PKG_CONFIG - -# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) -# -# Check to see whether a particular set of modules exists. Similar -# to PKG_CHECK_MODULES(), but does not set variables or print errors. -# -# -# Similar to PKG_CHECK_MODULES, make sure that the first instance of -# this or PKG_CHECK_MODULES is called, or make sure to call -# PKG_CHECK_EXISTS manually -# -------------------------------------------------------------- -AC_DEFUN([PKG_CHECK_EXISTS], -[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl -if test -n "$PKG_CONFIG" && \ - AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then - m4_ifval([$2], [$2], [:]) -m4_ifvaln([$3], [else - $3])dnl -fi]) - - -# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) -# --------------------------------------------- -m4_define([_PKG_CONFIG], -[if test -n "$$1"; then - pkg_cv_[]$1="$$1" - elif test -n "$PKG_CONFIG"; then - PKG_CHECK_EXISTS([$3], - [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`], - [pkg_failed=yes]) - else - pkg_failed=untried -fi[]dnl -])# _PKG_CONFIG - -# _PKG_SHORT_ERRORS_SUPPORTED -# ----------------------------- -AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], -[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) -if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then - _pkg_short_errors_supported=yes -else - _pkg_short_errors_supported=no -fi[]dnl -])# _PKG_SHORT_ERRORS_SUPPORTED - - -# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], -# [ACTION-IF-NOT-FOUND]) -# -# -# Note that if there is a possibility the first call to -# PKG_CHECK_MODULES might not happen, you should be sure to include an -# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac -# -# -# -------------------------------------------------------------- -AC_DEFUN([PKG_CHECK_MODULES], -[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl -AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl -AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl - -pkg_failed=no -AC_MSG_CHECKING([for $1]) - -_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) -_PKG_CONFIG([$1][_LIBS], [libs], [$2]) - -m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS -and $1[]_LIBS to avoid the need to call pkg-config. -See the pkg-config man page for more details.]) - -if test $pkg_failed = yes; then - _PKG_SHORT_ERRORS_SUPPORTED - if test $_pkg_short_errors_supported = yes; then - $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1` - else - $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1` - fi - # Put the nasty error message in config.log where it belongs - echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD - - ifelse([$4], , [AC_MSG_ERROR(dnl -[Package requirements ($2) were not met: - -$$1_PKG_ERRORS - -Consider adjusting the PKG_CONFIG_PATH environment variable if you -installed software in a non-standard prefix. - -_PKG_TEXT -])], - [AC_MSG_RESULT([no]) - $4]) -elif test $pkg_failed = untried; then - ifelse([$4], , [AC_MSG_FAILURE(dnl -[The pkg-config script could not be found or is too old. Make sure it -is in your PATH or set the PKG_CONFIG environment variable to the full -path to pkg-config. - -_PKG_TEXT - -To get pkg-config, see <http://pkg-config.freedesktop.org/>.])], - [$4]) -else - $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS - $1[]_LIBS=$pkg_cv_[]$1[]_LIBS - AC_MSG_RESULT([yes]) - ifelse([$3], , :, [$3]) -fi[]dnl -])# PKG_CHECK_MODULES - |