t/extra-portability.sh

   1 #! /bin/sh
   2 # Copyright (C) 2011-2024 Free Software Foundation, Inc.
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2, or (at your option)
   7 # any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  16
  17 # Check interactions between the 'portability' and 'extra-portability'
  18 # warning categories:
  19 #   1. '-Wextra-portability' must imply '-Wportability'.
  20 #   2. '-Wno-portability' must imply '-Wno-extra-portability'.
  21 #   3. '-Wall' must imply '-Wextra-portability'.
  22
  23 . test-init.sh
  24
  25 # We want (almost) complete control over automake options.
  26 AUTOMAKE="$am_original_AUTOMAKE --foreign -Werror"
  27
  28 cat >>configure.ac <<END
  29 AC_PROG_CC
  30 AC_PROG_RANLIB
  31 AC_OUTPUT
  32 END
  33
  34 $ACLOCAL
  35
  36 #
  37 # First, a setup where only an extra-portability warning is present
  38 # (no "simple" portability-warnings are).
  39 #
  40
  41 cat >Makefile.am <<END
  42 EXTRA_LIBRARIES = libfoo.a
  43 libfoo_a_SOURCES = foo.c
  44 END
  45
  46 # Sanity check: extra-portability warnings causes the expected error.
  47 AUTOMAKE_fails -Wextra-portability
  48 grep 'requires.*AM_PROG_AR' stderr
  49
  50 # Warnings in extra-portability category are not enabled by default.
  51 $AUTOMAKE
  52
  53 # -Wall enables extra-portability.
  54 AUTOMAKE_fails -Wall
  55 grep 'requires.*AM_PROG_AR' stderr
  56
  57 # Disabling portability disables extra-portability as well.
  58 $AUTOMAKE -Wextra-portability -Wno-portability
  59 $AUTOMAKE -Wall -Wno-portability
  60
  61 #
  62 # Now, a setup where also a "simple" portability warning is present.
  63 #
  64
  65 echo 'var = $(foo--bar)' >> Makefile.am
  66
  67 # Enabling extra-portability enables portability as well ...
  68 AUTOMAKE_fails -Wextra-portability
  69 grep 'foo--bar' stderr
  70 grep 'requires.*AM_PROG_AR' stderr
  71 # ... even if it had been previously disabled.
  72 AUTOMAKE_fails -Wno-portability -Wextra-portability
  73 grep 'foo--bar' stderr
  74 grep 'requires.*AM_PROG_AR' stderr
  75
  76 # Disabling extra-portability leaves portability intact (1).
  77 AUTOMAKE_fails -Wportability -Wno-extra-portability
  78 grep 'foo--bar' stderr
  79 grep 'requires.*AM_PROG_AR' stderr && exit 1
  80 # Disabling extra-portability leaves portability intact (2).
  81 AUTOMAKE_fails -Wall -Wno-extra-portability
  82 grep 'foo--bar' stderr
  83 grep 'requires.*AM_PROG_AR' stderr && exit 1
  84
  85 # Enabling portability does not enable extra-portability.
  86 AUTOMAKE_fails -Wportability
  87 grep 'foo--bar' stderr
  88 grep 'requires.*AM_PROG_AR' stderr && exit 1
  89
  90 # Disabling portability disables extra-portability.
  91 $AUTOMAKE -Wno-portability
  92 $AUTOMAKE -Wextra-portability -Wno-portability
  93 $AUTOMAKE -Wall -Wno-portability
  94
  95 :