C++ Library containing a lot of needful things: Stack Trace, Command Line Parser, Resource Handling, Configuration Files, Unix Command Execution, Directories, Regular Expressions, Tokenizer, Function Trace, Standard Extensions.
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# SYNOPSIS
#
# Check if a module exists:
# AX_CXX_CHECK_QT([qt_prefix], [list-of-qt-modules], [optional-modules])
#
# Abort if a module does not exist:
# AX_CXX_REQUIRE_QT([qt_prefix], [list-of-qt-modules], [optional-modules])
#
# DESCRIPTIONS
#
# qt_prefix
#
# Each call to AX_CXX_CHECK_QT should have a different prefix
# value (with a few exceptions discussed later on). This value,
# usually provided in uppercase, is used as prefix to the
# variables holding the compiler flags and libraries reported by
# pkg-config.
#
# For instance, if your prefix was to be FOO you'll be provided
# two variables FOO_CFLAGS and FOO_LIBS.
#
# This will also be used as message during the configure checks:
# checking for FOO....
#
# list-of-modules
#
# A single call to the macro can check for the presence of one or
# more qt modules; you'll see later how to make good use of this
# feature. Each entry in the list can have a version comparison
# specifier, with the same syntax as the Requires keyword in the
# data files themselves.
#
# optional-modules
#
# Optional list of more, optional modules, e.g. modules that
# exist only in Qt5, but not in Qt4, such as QtWidgets or
# QtWebKitWidgets
AC_DEFUN([AX_CXX_QT_TOOL], [
if test -z "$HAVE_$1"; then
HAVE_$1=1
AC_MSG_CHECKING([for $2])
AC_ARG_VAR([$1], [path to Qt tool $2])
$1=${$1:-$(${PKG_CONFIG} --variable=$2_location Qt5Core)}
$1=${$1:-$(${PKG_CONFIG} --variable=host_bins Qt5Core)/$2}
$1=${$1:-$(${PKG_CONFIG} --variable=$2_location QtCore)}
$1=${$1:-$(${PKG_CONFIG} --variable=host_bins QtCore)/$2}
if ! which "${$1%% *}" > /dev/null; then
if which "$2" > /dev/null; then
$1=$2
else
HAVE_$1=0
$1=""
fi
fi
AC_SUBST($1)
AM_CONDITIONAL(HAVE_$1, test $HAVE_$1 -eq 1)
if test $HAVE_$1 -eq 1; then
AC_MSG_RESULT([$$1])
else
AC_MSG_RESULT([not found])
fi
fi
])
AC_DEFUN([AX_CXX_QT_TOOLS], [
AX_CXX_QT_TOOL(QMAKE, qmake)
AX_CXX_QT_TOOL(MOC, moc)
AX_CXX_QT_TOOL(UIC, uic)
AX_CXX_QT_TOOL(RCC, rcc)
AX_CXX_QT_TOOL(LUPDATE, lupdate)
AX_CXX_QT_TOOL(LRELEASE, lrelease)
])
AC_DEFUN([AX_CHECK_VALID_FLAG], [
AC_MSG_CHECKING([m4_default([$2], [for valid flag in "$1"])])
save_cppflags="$CPPFLAGS"
newflag="no"
for test_flag in $1; do
CPPFLAGS+=" ${test_flag}"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
newflag="$test_flag"
CPPFLAGS="$save_cppflags"
CPPFLAGS+=" ${test_flag}"
break;
])
CPPFLAGS="$save_cppflags"
done
AC_SUBST(CPPFLAGS)
AC_MSG_RESULT([$newflag])
])
AC_DEFUN([AX_CHECK_QT], [
qt_modules="$2"
qt_modules_optional="$3"
AX_CXX_QT_TOOLS
HAVE_$1=0
PKG_PROG_PKG_CONFIG
PKG_CHECK_MODULES([$1]5, [${qt_modules//Qt/Qt5}], [
HAVE_$1=1
AC_DEFINE([HAVE_$1])
QTDIR=$(${PKG_CONFIG} --variable=prefix Qt5Core)
QT_PLUGIN_PATH=${QTDIR}/share/qt5/plugins
CPPFLAGS+=" ${[$1]5_CFLAGS}"
MOC_FLAGS+=" -DHAVE_$1=1 ${[$1]5_CFLAGS}"
CXXFLAGS+=" ${[$1]5_CFLAGS}"
LIBS+=" ${[$1]5_LIBS}"
PKG_REQUIREMENTS+=" ${qt_modules//Qt/Qt5}"
if test -n "${qt_modules_optional}"; then
PKG_CHECK_MODULES([$1]5_OPTIONAL, [${qt_modules_optional//Qt/Qt5}], [
CPPFLAGS+=" ${[$1]5_OPTIONAL_CFLAGS}"
MOC_FLAGS+=" ${[$1]5_OPTIONAL_CFLAGS}"
CXXFLAGS+=" ${[$1]5_OPTIONAL_CFLAGS}"
LIBS+=" ${[$1]5_OPTIONAL_LIBS}"
PKG_REQUIREMENTS+=" ${qt_modules_optional//Qt/Qt5}"
], [
AC_MSG_NOTICE([Not found: ${qt_modules_optional//Qt/Qt5}])
])
fi
], [
PKG_CHECK_MODULES([$1], [${qt_modules}], [
HAVE_$1=1
AC_DEFINE([HAVE_$1])
QTDIR=$(${PKG_CONFIG} --variable=prefix QtCore)
QT_PLUGIN_PATH=${QTDIR}/share/qt/plugins
CPPFLAGS+=" ${$1_CFLAGS}"
MOC_FLAGS+=" -DHAVE_$1=1 ${$1_CFLAGS}"
CXXFLAGS+=" ${$1_CFLAGS}"
LIBS+=" ${$1_LIBS}"
PKG_REQUIREMENTS+=" ${qt_modules}"
if test -n "$3"; then
PKG_CHECK_MODULES($1_OPTIONAL, [${qt_modules_optional}], [
CPPFLAGS+=" ${$1_OPTIONAL_CFLAGS}"
MOC_FLAGS+=" ${$1_OPTIONAL_CFLAGS}"
CXXFLAGS+=" ${$1_OPTIONAL_CFLAGS}"
LIBS+=" ${$1_OPTIONAL_LIBS}"
PKG_REQUIREMENTS+=" ${qt_modules_optional}"
], [
AC_MSG_NOTICE([Not found: ${qt_modules_optional}])
])
fi
], [HAVE_$1=0])
])
AM_CONDITIONAL(HAVE_$1, test $HAVE_$1 -eq 1)
AX_CHECK_VALID_FLAG([-fPIC -fPIE], [position independent code flag])
AC_SUBST(QTDIR)
AC_SUBST(QT_PLUGIN_PATH)
AC_SUBST(CPPFLAGS)
AC_SUBST(MOC_FLAGS)
AC_SUBST(CXXFLAGS)
AC_SUBST(PKG_REQUIREMENTS)
AX_ADDITIONAL_QT_RULES_HACK='
LANGUAGE_FILE_BASE ?= translations
ui_%.hxx: %.ui
$(UIC) -o [$][@] $<
moc_%.cxx: %.hxx
$(MOC) $(MOC_FLAGS) -o [$][@] $<
qrc_%.cxx: %.qrc
$(RCC) -o [$][@] -name ${<:%.qrc=%} $<
AC_SUBST(AX_ADDITIONAL_QT_RULES_HACK)
#%.qrc: %
# cwd=$$(pwd) && cd $< && $(RCC) -project -o $${cwd}/[$][@]
%.qm: %.ts
${LRELEASE} $< -qm [$][@]
#%.ts: ${LANGUAGE_FILES}
# ${LUPDATE} -no-obsolete \
# -target-language ${@:${LANGUAGE_FILE_BASE}_%.ts=%} \
# -ts [$][@] $<
'])
# SYNOPSIS
#
# AX_CXX_CHECK_QT([qt_prefix], [list-of-qt-modules], [optional-modules])
#
# DESCRIPTIONS
#
# qt_prefix
#
# Each call to AX_CXX_CHECK_QT should have a different prefix
# value (with a few exceptions discussed later on). This value,
# usually provided in uppercase, is used as prefix to the
# variables holding the compiler flags and libraries reported by
# pkg-config.
#
# For instance, if your prefix was to be FOO you'll be provided
# two variables FOO_CFLAGS and FOO_LIBS.
#
# This will also be used as message during the configure checks:
# checking for FOO....
#
# list-of-modules
#
# A single call to the macro can check for the presence of one or
# more qt modules; you'll see later how to make good use of this
# feature. Each entry in the list can have a version comparison
# specifier, with the same syntax as the Requires keyword in the
# data files themselves.
#
# optional-modules
#
# Optional list of more, optional modules, e.g. modules that
# exist only in Qt5, but not in Qt4, such as QtWidgets or
# QtWebKitWidgets
AC_DEFUN([AX_REQUIRE_QT], [
AX_CHECK_QT([$1], [$2], [$3])
if ! test "$HAVE_$1" -eq 1; then
AC_MSG_ERROR([Required Qt modules not found: $2])
fi
])
# Omit Qt Keywords
# AX_QT_NO_KEYWORDS
AC_DEFUN([AX_QT_NO_KEYWORDS], [
CPPFLAGS+=" -DQT_NO_KEYWORDS"
])