gnulib/update-gnulib.sh

   1 #! /bin/sh
   2
   3 # Copyright (C) 2011-2020 Free Software Foundation, Inc.
   4 #
   5 # This file is part of GDB.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 # Usage: update-gnulib.sh <path-to-gnulib-repository>
  21 # Update our import of gnulib in the GDB source tree.
  22 #
  23 # This script assumes that it is being called from the gdb/gnulib
  24 # subdirectory, and will verify this before proceeding.
  25 #
  26 # This script will also make a number of other verifications:
  27 #   . The gnulib version (it should match $GNULIB_COMMIT_SHA1).
  28 #   . The correct versions of the auto-tools that are used to
  29 #     regenerate the various scripts and Makefiles are on the PATH.
  30
  31 # The list of gnulib modules we are importing in GDB.
  32 IMPORTED_GNULIB_MODULES="\
  33     alloca \
  34     canonicalize-lgpl \
  35     count-one-bits \
  36     dirent \
  37     dirfd \
  38     errno \
  39     fnmatch-gnu \
  40     frexpl \
  41     getcwd \
  42     glob \
  43     inet_ntop
  44     inttypes \
  45     lstat \
  46     limits-h \
  47     memchr \
  48     memmem \
  49     mkdir \
  50     mkdtemp \
  51     mkostemp \
  52     pathmax \
  53     rawmemchr \
  54     readlink \
  55     rename \
  56     setenv \
  57     signal-h \
  58     strchrnul \
  59     strerror_r-posix \
  60     strstr \
  61     strtok_r \
  62     sys_stat \
  63     time_r \
  64     unistd \
  65     unsetenv \
  66     update-copyright \
  67     wchar \
  68     wctype-h \
  69 "
  70
  71 # The gnulib commit ID to use for the update.
  72 GNULIB_COMMIT_SHA1="e22cd2677a4b7beacbf30b93bb0559f7b89f96ce"
  73
  74 # The expected version number for the various auto tools we will
  75 # use after the import.
  76 AUTOCONF_VERSION="2.69"
  77 AUTOMAKE_VERSION="1.15.1"
  78 ACLOCAL_VERSION="$AUTOMAKE_VERSION"
  79
  80 if [ $# -ne 1 ]; then
  81    echo "Error: Path to gnulib repository missing. Aborting."
  82    echo "Usage: update-gnulib.sh <path-to-gnulib-repository>"
  83    exit 1
  84 fi
  85 gnulib_prefix=$1
  86
  87 gnulib_tool="$gnulib_prefix/gnulib-tool"
  88
  89 # Verify that the gnulib directory does exist...
  90 if [ ! -f "$gnulib_tool" ]; then
  91    echo "Error: Invalid gnulib directory. Cannot find gnulib tool"
  92    echo "       ($gnulib_tool)."
  93    echo "Aborting."
  94    exit 1
  95 fi
  96
  97 # Verify that we have the right version of gnulib...
  98 gnulib_head_sha1=`cd $gnulib_prefix && git rev-parse HEAD`
  99 if [ "$gnulib_head_sha1" != "$GNULIB_COMMIT_SHA1" ]; then
 100    echo "Error: Wrong version of gnulib: $gnulib_head_sha1"
 101    echo "       (we expected it to be $GNULIB_COMMIT_SHA1)"
 102    echo "Aborting."
 103    exit 1
 104 fi
 105
 106 # Verify that we are in the correct directory.
 107 if [ ! -f ../gdb/main.c -o ! -d import ]; then
 108    echo "Error: This script should be called from the gnulib subdirectory."
 109    echo "Aborting."
 110    exit 1
 111 fi
 112
 113 # Verify that we have the correct version of autoconf.
 114 ver=`autoconf --version 2>&1 | head -1 | sed 's/.*) //'`
 115 if [ "$ver" != "$AUTOCONF_VERSION" ]; then
 116    echo "Error: Wrong autoconf version ($ver), we need $AUTOCONF_VERSION."
 117    echo "Aborting."
 118    exit 1
 119 fi
 120
 121 # Verify that we have the correct version of automake.
 122 ver=`automake --version 2>&1 | head -1 | sed 's/.*) //'`
 123 if [ "$ver" != "$AUTOMAKE_VERSION" ]; then
 124    echo "Error: Wrong automake version ($ver), we need $AUTOMAKE_VERSION."
 125    echo "Aborting."
 126    exit 1
 127 fi
 128
 129 # Verify that we have the correct version of aclocal.
 130 #
 131 # The grep below is needed because Perl >= 5.16 dumps a "called too
 132 # early to check prototype" warning when running aclocal 1.11.1.  This
 133 # causes trouble below, because the warning is the first line output
 134 # by aclocal, resulting in:
 135 #
 136 # $ sh ./update-gnulib.sh ~/src/gnulib/src/
 137 # Error: Wrong aclocal version: called too early to check prototype at /opt/automake-1.11.1/bin/aclocal line 617.. Aborting.
 138 #
 139 # Some distros carry an automake patch for that:
 140 #  https://bugs.debian.org/cgi-bin/bugreport.cgi?msg=5;filename=aclocal-function-prototypes.debdiff;att=1;bug=752784
 141 #
 142 # But since we prefer pristine FSF versions of autotools, work around
 143 # the issue here.  This can be removed later when we bump the required
 144 # automake version.
 145 #
 146 ver=`aclocal --version 2>&1 | grep -v "called too early to check prototype" | head -1 | sed 's/.*) //'`
 147 if [ "$ver" != "$ACLOCAL_VERSION" ]; then
 148    echo "Error: Wrong aclocal version ($ver), we need $ACLOCAL_VERSION."
 149    echo "Aborting."
 150    exit 1
 151 fi
 152
 153 # Update our gnulib import.
 154 $gnulib_prefix/gnulib-tool --import --dir=. --lib=libgnu \
 155   --source-base=import --m4-base=import/m4 --doc-base=doc \
 156   --tests-base=tests --aux-dir=import/extra \
 157   --no-conditional-dependencies --no-libtool --macro-prefix=gl \
 158   --no-vc-files \
 159   $IMPORTED_GNULIB_MODULES
 160 if [ $? -ne 0 ]; then
 161    echo "Error: gnulib import failed.  Aborting."
 162    exit 1
 163 fi
 164
 165 # Apply our local patches.
 166 apply_patches ()
 167 {
 168     patch -p2 -f -i "$1"
 169     if [ $? -ne 0 ]; then
 170         echo "Failed to apply some patches.  Aborting."
 171         exit 1
 172     fi
 173 }
 174
 175 # Regenerate all necessary files...
 176 aclocal &&
 177 autoconf &&
 178 autoheader &&
 179 automake
 180 if [ $? -ne 0 ]; then
 181    echo "Error: Failed to regenerate Makefiles and configure scripts."
 182    exit 1
 183 fi