libtool/tests/bindir.at

# bindir.at -  Test the -bindir option
#
#   Copyright (C) 2009-2019, 2021-2024 Free Software Foundation, Inc.
#   Written by Dave Korn, 2009
#
#   This file is part of GNU Libtool.
#
# GNU Libtool is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# GNU Libtool is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Libtool.  If not, see <https://www.gnu.org/licenses/>.
####

####
#  In this testcase, and in the chunk of code that makes use
# of $bindir in ltmain.in, we would very much have liked to
# automatically decide which systems require dynamically-loaded
# libraries to be installed to a directory in $PATH according
# to the libtool properties that tell us that "the system provides
# no way to hard-code library paths into executables, and also
# has no $shlibpath_var independent of the PATH variable", in
# Ralf's words.  But it turns out this is not possible, as:-
#
#> * Dave Korn wrote on Fri, Aug 14, 2009 at 04:30:27AM CEST:
#>>> Ralf Wildenhues wrote:
#>>>
#>>>>> But in this particular case, I would argue that either you look at
#>>>>> the libtool variables shlibpath_var and hardcode_action for "PATH"
#>>>>> and "unsupported".
#>>>
#>>> On Cygwin, $hardcode_action = "immediate" in the generated libtool
#>>> script. Did you perhaps mean $hardcode_shlibpath_var, which is indeed
#>>> "unsupported"?
#>
#> Oh brother, yes, I forgot about those bogus hardcode_libdir_flag_spec
#> settings.  They fool _LT_LINKER_HARDCODE_LIBPATH.  I don't remember whether
#> they were needed in order to not break some semantics in ltmain (they
#> probably were).
#>
#> Anyway, $hardcode_action = "immediate" is definitely wrong, but fixing that
#> now is also way out of scope of this patch.  So I guess we need to stick to
#> host matching in the code, and work out a separate fix for the setting of
#> $hardcode_libdir_flag_spec.
#
# So alas we punt for now, and just hardcode the relevant OSs that require
# this functionality.  That's Cygwin, MinGW and CeGCC for now; see the case
# statement in ltmain.in around where the 'tdlname' variable is set.

####
# First a simple test that we can build and run an executable with a couple of
# tiny libraries.

AT_SETUP([bindir basic lib test])

bindirneeded=:
case $host_os in
  cygwin*|mingw*|windows*|cegcc*)
    ;;
  *)
    bindirneeded=false
    ;;
esac

####
# These routines save the PATH before a test and restore it after,
# prepending a chosen directory to the path on the platforms where
# -bindir is needed after saving.
#

func_save_and_prepend_path ()
{
  save_PATH=$PATH
  if $bindirneeded; then
    PATH=$1$PATH_SEPARATOR$PATH
  fi
  export PATH
}

func_restore_path ()
{
  PATH=$save_PATH
  export PATH
}

AT_DATA([foo.c],[[
int x=11;
]])

AT_DATA([baz.c],[[
extern int x;
int baz (void);
int baz (void) { return x;}
]])

AT_DATA([bar.c],[[
extern int baz (void);
int y=3;
int bar (void);
int bar (void) { return y + baz ();}
]])

AT_DATA([main.c],[[
#include <stdlib.h>
extern int baz (void);
extern int bar (void);
int main() {
if (baz () + bar () - 25) abort ();
return 0;
}
]])


curdir=`pwd`
eval "`$LIBTOOL --config | $GREP '^objdir='`"

AT_CHECK([$LIBTOOL --mode=compile --tag=CC $CC -c -o foo.lo $CPPFLAGS $CFLAGS foo.c],[0],[ignore],[ignore])
AT_CHECK([$LIBTOOL --mode=compile --tag=CC $CC -c -o baz.lo $CPPFLAGS $CFLAGS baz.c],[0],[ignore],[ignore])
AT_CHECK([$LIBTOOL --mode=link --tag=CC $CC -no-undefined -o libfoo.la $CPPFLAGS $CFLAGS $LDFLAGS foo.lo baz.lo -rpath $curdir/$objdir],[0],[ignore],[ignore])

AT_CHECK([$LIBTOOL --mode=compile --tag=CC $CC -c -o bar.lo $CPPFLAGS $CFLAGS bar.c],[0],[ignore],[ignore])
AT_CHECK([$LIBTOOL --mode=link --tag=CC $CC -no-undefined -o libbar.la $CPPFLAGS $CFLAGS $LDFLAGS bar.lo libfoo.la -rpath $curdir/$objdir],[0],[ignore],[ignore])

AT_CHECK([$LIBTOOL --mode=compile --tag=CC $CC -c -o main.lo $CPPFLAGS $CFLAGS main.c],[0],[ignore],[ignore])
AT_CHECK([$LIBTOOL --mode=link --tag=CC $CC -o main$EXEEXT $CPPFLAGS $CFLAGS $LDFLAGS main.lo libbar.la libfoo.la],[0],[ignore],[ignore])

# Check both static and shared versions run.  We don't install them
# here, that will be covered by the later tests; we've rpath'd things
# so that they can all be run in situ.

LT_AT_NOINST_EXEC_CHECK([./main])

# Ensure libraries can be found on PATH, if we are on one
# of the affected platforms, before testing the shared version.

func_save_and_prepend_path "$curdir/$objdir"
$bindirneeded && {
  LT_AT_NOINST_EXEC_CHECK([$objdir/main])
}

#  In fact, prepending the PATH as above is superfluous on the windows
# platforms that this feature is primarily aimed at, as the DLL search
# path always includes the directory from which the app was launched.
# To make sure it still works even when not side-by-side, we'll install
# the main executable and execute it from there while the PATH still
# points to the shared libs in the .libs subdir.  On other platforms,
# the rpaths we set at link time will guarantee it runs from the bindir.

mkdir $curdir/bin
AT_CHECK([$LIBTOOL --mode=install $lt_INSTALL main$EXEEXT $curdir/bin/main$EXEEXT], [], [ignore], [ignore])
LT_AT_EXEC_CHECK([$curdir/bin/main$EXEEXT], [0], [ignore], [ignore], [])
func_restore_path

AT_CLEANUP

####
# This is the main testcase.  For a variety of bindir and libdir
# settings, it verifies that all the files get installed exactly
# where we want them to go, and that they can be executed once
# installed.
#

AT_SETUP([bindir install tests])

bindirneeded=:
case $host_os in
  cygwin*|mingw*|windows*|cegcc*)
    ;;
  *)
    bindirneeded=false
    ;;
esac

eval "`$LIBTOOL --config | $GREP '^build_libtool_libs='`"
AT_CHECK([test yes = "$build_libtool_libs" || exit 77])

####
# These routines save the PATH before a test and restore it after,
# prepending a chosen directory to the path on the platforms where
# -bindir is needed after saving.
#

func_save_and_prepend_path ()
{
  save_PATH=$PATH
  if $bindirneeded; then
    PATH=$1$PATH_SEPARATOR$PATH
  fi
  export PATH
}

func_restore_path ()
{
  PATH=$save_PATH
  export PATH
}

AT_DATA([foo.c],[[
int x=11;
]])

AT_DATA([baz.c],[[
extern int x;
int baz (void);
int baz (void) { return x;}
]])

AT_DATA([bar.c],[[
extern int baz (void);
int y=3;
int bar (void);
int bar (void) { return y + baz ();}
]])

AT_DATA([main.c],[[
#include <stdlib.h>
extern int baz (void);
extern int bar (void);
int main() {
if (baz () + bar () - 25) abort ();
return 0;
}
]])

# We only need to compile once, but we'll need to relink for each different value
# of libdir in order to set the rpath, and we'll install for each combination of
# libdir and bindir.

AT_CHECK([$LIBTOOL --mode=compile --tag=CC $CC -c -o foo.lo $CPPFLAGS $CFLAGS foo.c],[0],[ignore],[ignore])
AT_CHECK([$LIBTOOL --mode=compile --tag=CC $CC -c -o baz.lo $CPPFLAGS $CFLAGS baz.c],[0],[ignore],[ignore])
AT_CHECK([$LIBTOOL --mode=compile --tag=CC $CC -c -o bar.lo $CPPFLAGS $CFLAGS bar.c],[0],[ignore],[ignore])
AT_CHECK([$LIBTOOL --mode=compile --tag=CC $CC -c -o main.lo $CPPFLAGS $CFLAGS main.c],[0],[ignore],[ignore])

# Now try installing the libs.  There are the following cases:
# No -bindir
# -bindir below lib install dir
# -bindir is lib install dir
# -bindir beside lib install dir
# -bindir above lib dir
# -bindir above and beside lib dir
# -bindir in entirely unrelated prefix.

curdir=`pwd`
for libdir in \
	$curdir/usr/lib/gcc/i686-pc-cygwin/4.5.0 \
	$curdir/usr/lib/gcc/../gcc/.//i686-pc-cygwin/4.5.0/../../././//. \
	$curdir/usr/lib/ \
	$curdir/usr/lib \
	$curdir/baz \
	$curdir/baz/lib/;
do

  # Do a basic install with no -bindir option for reference.  We use the sbin/
  # dir for the main exe to avoid the potential "this only works because it's
  # side-by-side with the libs" default DLL search path problem mentioned above.
  rm -rf $libdir $curdir/bin $curdir/sbin $curdir/baz $curdir/usr
  AS_MKDIR_P($libdir)
  AS_MKDIR_P($curdir/sbin)
  AT_CHECK([$LIBTOOL --mode=link --tag=CC $CC -no-undefined -o libfoo.la $CPPFLAGS $CFLAGS $LDFLAGS foo.lo bar.lo baz.lo -rpath $libdir],[0],[ignore],[ignore])
  AT_CHECK([$LIBTOOL --mode=link --tag=CC $CC -o main$EXEEXT $CPPFLAGS $CFLAGS $LDFLAGS main.lo libfoo.la -rpath $libdir],[0],[ignore],[ignore])
  AT_CHECK([$LIBTOOL --mode=install $lt_INSTALL libfoo.la $libdir], [], [ignore], [ignore])
  AT_CHECK([$LIBTOOL --mode=install $lt_INSTALL main$EXEEXT $curdir/sbin/main$EXEEXT], [], [ignore], [ignore])

  # And ensure it went where we expect.  Could be looking for any of
  # 'cygfoo-0.dll', 'libfoo-0.dll', 'foo-0.dll', or 'libfoo.so.0'.  We'll
  # simplify this check by taking advantage of the fact that if it's a DLL,
  # it has to go in bindir, so we'll not check for both forms in libdir.
  if $bindirneeded; then
    AT_CHECK([test -f "$libdir"/../bin/???foo-0.dll || ls "$libdir"/../bin/*foo*0*], [], [ignore], [ignore])
  else
    AT_CHECK([ls $libdir/*foo*], [], [ignore], [ignore])
  fi

  # And that it can be executed.
  func_save_and_prepend_path "$libdir/../bin"
  LT_AT_EXEC_CHECK([$curdir/sbin/main$EXEEXT], [0], [ignore], [ignore], [])
  func_restore_path

  for bindir in \
	$curdir/usr/lib/gcc/i686-pc-cygwin/4.5.0/bin/ \
	$curdir/usr/lib/gcc/i686-pc-cygwin/4.5.0/bin \
	$curdir/usr/lib/gcc/i686-pc-cygwin/bin \
	$curdir/usr/lib/bin \
	$curdir/usr/bin/ \
	$curdir/usr/bin \
	/tmp/foo/bar;
  do

    # Clear any old stuff out before we install.  Because bindir
    # may be in /tmp, we have to take care to create it securely
    # and not to delete and recreate it if we do.
    rm -rf $libdir $curdir/bin $curdir/sbin $curdir/baz $curdir/usr

    tmp=
    case $bindir in
      /tmp*)
        # Create a temporary directory $tmp in $TMPDIR (default /tmp).
        # Use mktemp if possible; otherwise fall back on mkdir,
        # with $RANDOM to make collisions less likely.
        : ${TMPDIR=/tmp}
        {
          tmp=`
            (umask 077 && mktemp -d "$TMPDIR/fooXXXXXX") 2>/dev/null
          ` &&
          test -n "$tmp" && test -d "$tmp"
        } || {
          tmp=$TMPDIR/foo$$-$RANDOM
          (umask 077 && mkdir "$tmp")
        } || AT_CHECK([exit 77])
        bindir=$tmp/bar
      ;;
      *)
        # Clear any old stuff out before we install.
        rm -rf $bindir
        AS_MKDIR_P($bindir)
      ;;
    esac

    # Relink with new rpaths.
    AT_CHECK([$LIBTOOL --mode=link --tag=CC $CC -no-undefined -bindir $bindir -o libfoo.la $CPPFLAGS $CFLAGS $LDFLAGS foo.lo bar.lo baz.lo -rpath $libdir],[0],[ignore],[ignore])
    AT_CHECK([$LIBTOOL --mode=link --tag=CC $CC -o main$EXEEXT $CPPFLAGS $CFLAGS $LDFLAGS main.lo libfoo.la],[0],[ignore],[ignore])

    # Recreate directories (bindir already done) and install.
    AS_MKDIR_P($libdir)
    AS_MKDIR_P($curdir/sbin)
    AT_CHECK([$LIBTOOL --mode=install $lt_INSTALL libfoo.la "$libdir"], [], [ignore], [ignore])
    AT_CHECK([$LIBTOOL --mode=install $lt_INSTALL main$EXEEXT "$curdir/sbin/main$EXEEXT"], [], [ignore], [ignore])

    # Ensure it went to bindir rather than default dir this time.
    if $bindirneeded; then
      AT_CHECK([test -f "$bindir"/???foo-0.dll || ls "$bindir"/*foo*0*], [], [ignore], [ignore])
    else
      AT_CHECK([ls "$libdir"/*foo*], [], [ignore], [ignore])
    fi

    # And that it can be executed.
    func_save_and_prepend_path "$bindir"
    LT_AT_EXEC_CHECK([$curdir/sbin/main$EXEEXT], [0], [ignore], [ignore], [])
    func_restore_path

    # Clean up if we made a temp dir.  Subdirs under our testdir get rm'd
    # and recreated at the top of the loop.  Securely created subdirs under
    # /tmp get created precisely once and rm'd when we're done with them.
    if test ! -z "$tmp"; then
      rm -rf "$tmp"
    fi

  done
done

AT_CLEANUP