92 lines
2.4 KiB
Text
92 lines
2.4 KiB
Text
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# $NetBSD: mknative.common,v 1.9 2007/02/05 18:26:01 apb Exp $
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#
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# from: NetBSD: mknative,v 1.12 2003/03/05 06:17:17 mrg Exp
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#
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# shell-fragment common to all "mknative" scripts
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bomb()
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{
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echo >&2 "ABORT: $*"
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exit 1
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}
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# Make sure we can run OK.
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if [ -x "$MAKE" ]; then
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:
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else
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bomb "MAKE not set"
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fi
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# usage: getvars MAKEFILE VARNAME [VARNAME...]
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#
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getvars()
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{
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_mf="$1"; shift
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case "$MAKE" in
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*gmake)
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env MAKEFLAGS= $MAKE -f - -f "$_TMPDIR/$_mf" _x_ <<EOF || bomb "getvars $_mf $* failed"
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define echo_var
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@echo G_\${var}="\${\${var}}" | sed -e 's,\([^\.]\)\./\([a-zA-Z0-9_-]*\.o\),\1\2,g' -e 's,$_VPATH,\$\${GNUHOSTDIST},g' -e 's,$_GNU_DIST,\$\${GNUHOSTDIST},g'
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endef
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_x_:
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\$(foreach var,$*,\$(echo_var))
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EOF
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;;
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*)
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$MAKE -B -f - _x_ <<EOF || bomb "getvars $_mf $* failed"
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_x_:
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.for var in $*
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@echo G_\${var}=\${\${var}:Q} | sed -e 's,\([^\.]\)\./\([a-zA-Z0-9_-]*\.o\),\1\2,g' -e 's,$_VPATH,\$\${GNUHOSTDIST},g' -e 's,$_GNU_DIST,\$\${GNUHOSTDIST},g'
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.endfor
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.include "$_TMPDIR/$_mf"
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EOF
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;;
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esac
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}
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# usage: write_c FILENAME
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#
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write_c()
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{
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echo '/* This file is automatically generated. DO NOT EDIT! */' >$_TOP/$1.tmp || \
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bomb "cannot create $1"
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grep '$''NetBSD' $0 | sed 's,[#$],,g;s,.*,/* Generated from: & */,' >>$_TOP/$1.tmp
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echo '$NetBSD: mknative.common,v 1.9 2007/02/05 18:26:01 apb Exp $' | sed 's,[#$],,g;s,.*,/* Generated from: & */,' >>$_TOP/$1.tmp
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echo '' >>$_TOP/$1.tmp
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writefile $1
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}
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# usage: write_mk FILENAME
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#
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write_mk()
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{
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echo '# This file is automatically generated. DO NOT EDIT!' >$_TOP/$1.tmp || \
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bomb "cannot create $1"
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grep '$''NetBSD' $0 | sed 's,[#$],,g;s,.*,# Generated from: &,' >>$_TOP/$1.tmp
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echo '$NetBSD: mknative.common,v 1.9 2007/02/05 18:26:01 apb Exp $' | sed 's,[#$],,g;s,.*,# Generated from: &,' >>$_TOP/$1.tmp
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echo '#' >>$_TOP/$1.tmp
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writefile $1
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}
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writefile()
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{
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sed -e 's,netbsd\(elf\)*1[0-9\.]*\(_\)*[A-Z]*,netbsd\1,' \
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-e 's,^/\* #undef HAVE_MMAP \*/$,#define HAVE_MMAP 1,' \
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>>$_TOP/$1.tmp
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# Compare new file, sans "generated from" comments and RCS Id,
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# to old file. If they match, don't change anything.
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rm -f $_TMPDIR/.1 $_TMPDIR/.2
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grep -v 'Generated from:' $_TOP/$1 >$_TMPDIR/.1 2>/dev/null
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grep -v 'Generated from:' $_TOP/$1.tmp >$_TMPDIR/.2
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# will not overwrite a file that has the same content
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if cmp $_TMPDIR/.1 $_TMPDIR/.2 >/dev/null 2>&1; then
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rm -f $_TOP/$1.tmp
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else
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echo >&2 "$1 changed"
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mv -f $_TOP/$1.tmp $_TOP/$1
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fi
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}
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