diff options
Diffstat (limited to 'contrib/sqlite3/autosetup/system.tcl')
| -rw-r--r-- | contrib/sqlite3/autosetup/system.tcl | 420 |
1 files changed, 420 insertions, 0 deletions
diff --git a/contrib/sqlite3/autosetup/system.tcl b/contrib/sqlite3/autosetup/system.tcl new file mode 100644 index 000000000000..05d378afdd26 --- /dev/null +++ b/contrib/sqlite3/autosetup/system.tcl @@ -0,0 +1,420 @@ +# Copyright (c) 2010 WorkWare Systems http://www.workware.net.au/ +# All rights reserved + +# @synopsis: +# +# This module supports common system interrogation and options +# such as '--host', '--build', '--prefix', and setting 'srcdir', 'builddir', and 'EXEEXT'. +# +# It also support the "feature" naming convention, where searching +# for a feature such as 'sys/type.h' defines 'HAVE_SYS_TYPES_H'. +# +# It defines the following variables, based on '--prefix' unless overridden by the user: +# +## datadir +## sysconfdir +## sharedstatedir +## localstatedir +## infodir +## mandir +## includedir +# +# If '--prefix' is not supplied, it defaults to '/usr/local' unless 'options-defaults { prefix ... }' is used *before* +# including the 'system' module. + +if {[is-defined defaultprefix]} { + user-notice "Note: defaultprefix is deprecated. Use options-defaults to set default options" + options-defaults [list prefix [get-define defaultprefix]] +} + +options { + host:host-alias => {a complete or partial cpu-vendor-opsys for the system where + the application will run (defaults to the same value as --build)} + build:build-alias => {a complete or partial cpu-vendor-opsys for the system + where the application will be built (defaults to the + result of running config.guess)} + prefix:dir=/usr/local => {the target directory for the build (default: '@default@')} + + # These (hidden) options are supported for autoconf/automake compatibility + exec-prefix: + bindir: + sbindir: + includedir: + mandir: + infodir: + libexecdir: + datadir: + libdir: + sysconfdir: + sharedstatedir: + localstatedir: + runstatedir: + maintainer-mode=0 + dependency-tracking=0 + silent-rules=0 + program-prefix: + program-suffix: + program-transform-name: + x-includes: + x-libraries: +} + +# @check-feature name { script } +# +# defines feature '$name' to the return value of '$script', +# which should be 1 if found or 0 if not found. +# +# e.g. the following will define 'HAVE_CONST' to 0 or 1. +# +## check-feature const { +## cctest -code {const int _x = 0;} +## } +proc check-feature {name code} { + msg-checking "Checking for $name..." + set r [uplevel 1 $code] + define-feature $name $r + if {$r} { + msg-result "ok" + } else { + msg-result "not found" + } + return $r +} + +# @have-feature name ?default=0? +# +# Returns the value of feature '$name' if defined, or '$default' if not. +# +# See 'feature-define-name' for how the "feature" name +# is translated into the "define" name. +# +proc have-feature {name {default 0}} { + get-define [feature-define-name $name] $default +} + +# @define-feature name ?value=1? +# +# Sets the feature 'define' to '$value'. +# +# See 'feature-define-name' for how the "feature" name +# is translated into the "define" name. +# +proc define-feature {name {value 1}} { + define [feature-define-name $name] $value +} + +# @feature-checked name +# +# Returns 1 if feature '$name' has been checked, whether true or not. +# +proc feature-checked {name} { + is-defined [feature-define-name $name] +} + +# @feature-define-name name ?prefix=HAVE_? +# +# Converts a "feature" name to the corresponding "define", +# e.g. 'sys/stat.h' becomes 'HAVE_SYS_STAT_H'. +# +# Converts '*' to 'P' and all non-alphanumeric to underscore. +# +proc feature-define-name {name {prefix HAVE_}} { + string toupper $prefix[regsub -all {[^a-zA-Z0-9]} [regsub -all {[*]} $name p] _] +} + +# @write-if-changed filename contents ?script? +# +# If '$filename' doesn't exist, or it's contents are different to '$contents', +# the file is written and '$script' is evaluated. +# +# Otherwise a "file is unchanged" message is displayed. +proc write-if-changed {file buf {script {}}} { + set old [readfile $file ""] + if {$old eq $buf && [file exists $file]} { + msg-result "$file is unchanged" + } else { + writefile $file $buf\n + uplevel 1 $script + } +} + + +# @include-file infile mapping +# +# The core of make-template, called recursively for each @include +# directive found within that template so that this proc's result +# is the fully-expanded template. +# +# The mapping parameter is how we expand @varname@ within the template. +# We do that inline within this step only for @include directives which +# can have variables in the filename arg. A separate substitution pass +# happens when this recursive function returns, expanding the rest of +# the variables. +# +proc include-file {infile mapping} { + # A stack of true/false conditions, one for each nested conditional + # starting with "true" + set condstack {1} + set result {} + set linenum 0 + foreach line [split [readfile $infile] \n] { + incr linenum + if {[regexp {^@(if|else|endif)(\s*)(.*)} $line -> condtype condspace condargs]} { + if {$condtype eq "if"} { + if {[string length $condspace] == 0} { + autosetup-error "$infile:$linenum: Invalid expression: $line" + } + if {[llength $condargs] == 1} { + # ABC => [get-define ABC] ni {0 ""} + # !ABC => [get-define ABC] in {0 ""} + lassign $condargs condvar + if {[regexp {^!(.*)} $condvar -> condvar]} { + set op in + } else { + set op ni + } + set condexpr "\[[list get-define $condvar]\] $op {0 {}}" + } else { + # Translate alphanumeric ABC into [get-define ABC] and leave the + # rest of the expression untouched + regsub -all {([A-Z][[:alnum:]_]*)} $condargs {[get-define \1]} condexpr + } + if {[catch [list expr $condexpr] condval]} { + dputs $condval + autosetup-error "$infile:$linenum: Invalid expression: $line" + } + dputs "@$condtype: $condexpr => $condval" + } + if {$condtype ne "if"} { + if {[llength $condstack] <= 1} { + autosetup-error "$infile:$linenum: Error: @$condtype missing @if" + } elseif {[string length $condargs] && [string index $condargs 0] ne "#"} { + autosetup-error "$infile:$linenum: Error: Extra arguments after @$condtype" + } + } + switch -exact $condtype { + if { + # push condval + lappend condstack $condval + } + else { + # Toggle the last entry + set condval [lpop condstack] + set condval [expr {!$condval}] + lappend condstack $condval + } + endif { + if {[llength $condstack] == 0} { + user-notice "$infile:$linenum: Error: @endif missing @if" + } + lpop condstack + } + } + continue + } + # Only continue if the stack contains all "true" + if {"0" in $condstack} { + continue + } + if {[regexp {^@include\s+(.*)} $line -> filearg]} { + set incfile [string map $mapping $filearg] + if {[file exists $incfile]} { + lappend ::autosetup(deps) [file-normalize $incfile] + lappend result {*}[include-file $incfile $mapping] + } else { + user-error "$infile:$linenum: Include file $incfile is missing" + } + continue + } + if {[regexp {^@define\s+(\w+)\s+(.*)} $line -> var val]} { + define $var $val + continue + } + lappend result $line + } + return $result +} + + +# @make-template template ?outfile? +# +# Reads the input file '<srcdir>/$template' and writes the output file '$outfile' +# (unless unchanged). +# If '$outfile' is blank/omitted, '$template' should end with '.in' which +# is removed to create the output file name. +# +# Each pattern of the form '@define@' is replaced with the corresponding +# "define", if it exists, or left unchanged if not. +# +# The special value '@srcdir@' is substituted with the relative +# path to the source directory from the directory where the output +# file is created, while the special value '@top_srcdir@' is substituted +# with the relative path to the top level source directory. +# +# Conditional sections may be specified as follows: +## @if NAME eq "value" +## lines +## @else +## lines +## @endif +# +# Where 'NAME' is a defined variable name and '@else' is optional. +# Note that variables names *must* start with an uppercase letter. +# If the expression does not match, all lines through '@endif' are ignored. +# +# The alternative forms may also be used: +## @if NAME (true if the variable is defined, but not empty and not "0") +## @if !NAME (opposite of the form above) +## @if <general-tcl-expression> +# +# In the general Tcl expression, any words beginning with an uppercase letter +# are translated into [get-define NAME] +# +# Expressions may be nested +# +proc make-template {template {out {}}} { + set infile [file join $::autosetup(srcdir) $template] + + if {![file exists $infile]} { + user-error "Template $template is missing" + } + + # Define this as late as possible + define AUTODEPS $::autosetup(deps) + + if {$out eq ""} { + if {[file ext $template] ne ".in"} { + autosetup-error "make_template $template has no target file and can't guess" + } + set out [file rootname $template] + } + + set outdir [file dirname $out] + + # Make sure the directory exists + file mkdir $outdir + + # Set up srcdir and top_srcdir to be relative to the target dir + define srcdir [relative-path [file join $::autosetup(srcdir) $outdir] $outdir] + define top_srcdir [relative-path $::autosetup(srcdir) $outdir] + + # Build map from global defines to their values so they can be + # substituted into @include file names. + proc build-define-mapping {} { + set mapping {} + foreach {n v} [array get ::define] { + lappend mapping @$n@ $v + } + return $mapping + } + set mapping [build-define-mapping] + + set result [include-file $infile $mapping] + + # Rebuild the define mapping in case we ran across @define + # directives in the template or a file it @included, then + # apply that mapping to the expanded template. + set mapping [build-define-mapping] + write-if-changed $out [string map $mapping [join $result \n]] { + msg-result "Created [relative-path $out] from [relative-path $template]" + } +} + +proc system-init {} { + global autosetup + + # build/host tuples and cross-compilation prefix + opt-str build build "" + define build_alias $build + if {$build eq ""} { + define build [config_guess] + } else { + define build [config_sub $build] + } + + opt-str host host "" + define host_alias $host + if {$host eq ""} { + define host [get-define build] + set cross "" + } else { + define host [config_sub $host] + set cross $host- + } + define cross [get-env CROSS $cross] + + # build/host _cpu, _vendor and _os + foreach type {build host} { + set v [get-define $type] + if {![regexp {^([^-]+)-([^-]+)-(.*)$} $v -> cpu vendor os]} { + user-error "Invalid canonical $type: $v" + } + define ${type}_cpu $cpu + define ${type}_vendor $vendor + define ${type}_os $os + } + + opt-str prefix prefix /usr/local + + # These are for compatibility with autoconf + define target [get-define host] + define prefix $prefix + define builddir $autosetup(builddir) + define srcdir $autosetup(srcdir) + define top_srcdir $autosetup(srcdir) + define abs_top_srcdir [file-normalize $autosetup(srcdir)] + define abs_top_builddir [file-normalize $autosetup(builddir)] + + # autoconf supports all of these + define exec_prefix [opt-str exec-prefix exec_prefix $prefix] + foreach {name defpath} { + bindir /bin + sbindir /sbin + libexecdir /libexec + libdir /lib + } { + define $name [opt-str $name o $exec_prefix$defpath] + } + foreach {name defpath} { + datadir /share + sharedstatedir /com + infodir /share/info + mandir /share/man + includedir /include + } { + define $name [opt-str $name o $prefix$defpath] + } + if {$prefix ne {/usr}} { + opt-str sysconfdir sysconfdir $prefix/etc + } else { + opt-str sysconfdir sysconfdir /etc + } + define sysconfdir $sysconfdir + + define localstatedir [opt-str localstatedir o /var] + define runstatedir [opt-str runstatedir o /run] + + define SHELL [get-env SHELL [find-an-executable sh bash ksh]] + + # These could be used to generate Makefiles following some automake conventions + define AM_SILENT_RULES [opt-bool silent-rules] + define AM_MAINTAINER_MODE [opt-bool maintainer-mode] + define AM_DEPENDENCY_TRACKING [opt-bool dependency-tracking] + + # Windows vs. non-Windows + switch -glob -- [get-define host] { + *-*-ming* - *-*-cygwin - *-*-msys { + define-feature windows + define EXEEXT .exe + } + default { + define EXEEXT "" + } + } + + # Display + msg-result "Host System...[get-define host]" + msg-result "Build System...[get-define build]" +} + +system-init |