libcdecl: Consolidate most error messages.

[cdecl99.git] / bootstrap

diff --git a/bootstrap b/bootstrap
index fdfd7053ec5481495a493bcb7bec8163e7e52aa6..8b6bf0b6a02d61e864bb0488b6a553ef7dd0f0e4 100755 (executable)
--- a/bootstrap
+++ b/bootstrap
@@ -1,9 +1,17 @@
 #!/bin/sh
+#
+# Copyright © 2011-2012, 2021-2023 Nick Bowler
+#
+# Simple script to get started from a fresh git checkout.
+#
+# License WTFPL2: Do What The Fuck You Want To Public License, version 2.
+# This is free software: you are free to do what the fuck you want to.
+# There is NO WARRANTY, to the extent permitted by law.
 
 scriptname=$0
 
 err() {
-       printf '%s: %s\n' "$scriptname" "$@" 1>&2
+       printf '%s: %s\n' "$scriptname" "$*" 1>&2
 }
 
 die() {
@@ -12,6 +20,7 @@ die() {
 }
 
 : ${AUTORECONF=autoreconf}
+: ${AUTOMAKE=automake}
 : ${GNULIB=gnulib}
 : ${GIT=git}
 : ${PERL=perl}
@@ -19,12 +28,50 @@ die() {
 $GIT submodule update --init || err "Failed to update submodules from git."
 
 if test -x $GNULIB/gnulib-tool; then
-       $GNULIB/gnulib-tool --update -S || die "Failed to update Gnulib."
+  $GNULIB/gnulib-tool --update -S || die "Failed to update Gnulib."
+
+  exec 3>lib/symfiles.tmp 4<lib/symfiles.tmp
+  rm -f lib/symfiles.tmp
+
+  shared_modules='lock tls snprintf vsnprintf'
+  set x --extract-recursive-dependencies $shared_modules; shift
+  (set -x; $GNULIB/gnulib-tool "$@" >&3 ) || die "gnulib-tool failed"
+  shared_modules=`LC_ALL=C sort -u <&4`
+
+  set x --extract-filelist $shared_modules; shift
+  ( set -x; $GNULIB/gnulib-tool "$@" >&3 ) || die "gnulib-tool failed"
+  <&4 grep '^lib/.*[.][^vh][^.]*$' | LC_ALL=C sort -u >lib/symfiles
 else
-       die "Gnulib sources are not properly installed in gnulib/."
+  err "Gnulib sources are not properly installed in $GNULIB/"
+  cat >&2 <<'EOF'
+
+To bootstrap this package using an external Gnulib, you can set the GNULIB
+environment variable to indicate the location of the Gnulib sources.
+EOF
+
+  test ! -f configure || cat >&2 <<'EOF'
+
+However, it seems this package is already bootstrapped.  It should not
+normally be necessary to run this script from a release tarball.
+EOF
+  exit 1
 fi
 
 $PERL common/scripts/fix-gnulib.pl -o lib/gnulib.mk -i lib/gnulib.mk.in \
        || die "Failed to fixup Gnulib makefile fragment."
 
-$AUTORECONF -fis
+# Rewrite if ! ... construts produced by gnulib conditional dependencies
+# as these fail in heirloom-sh.
+sed 's/if ! *\(.*gnulib_enabled[^;]*\); then/if \1; then :; else/' \
+  m4/gnulib-comp.m4 >m4/gnulib-comp.m4.new || exit
+mv -f m4/gnulib-comp.m4.new m4/gnulib-comp.m4 || exit
+
+# Punt some automake-generated files so that Gentoo's wrapper script doesn't
+# try to detect the automake version in use.
+rm -f Makefile.in aclocal.m4
+$AUTORECONF -fis || exit
+
+amdir=`$AUTOMAKE --print-libdir`
+if test -f "$amdir/INSTALL"; then
+  ln -sf "$amdir/INSTALL" INSTALL
+fi