tests/export-def.at

# export-def.at -- test module-definition files              -*- Autotest -*-

#   Copyright (C) 2013-2019, 2021-2025 Free Software Foundation, Inc.
#   Written by Peter Rosin, 2013
#
#   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/>.
####

AT_SETUP([export from a DLL with a .def file])
AT_KEYWORDS([libtool])

AT_CHECK([$LIBTOOL --features | $GREP 'disable shared libraries' && (exit 77)],
	 [1], [ignore])
eval `$LIBTOOL --config | $EGREP '^(shrext_cmds|libname_spec|soname_spec)='`

eval shared_ext=\"$shrext_cmds\"

# skip if not building a .dll
AT_CHECK([test .dll = "$shared_ext" || (exit 77)])

LDFLAGS="$LDFLAGS -no-undefined"
libdir=`pwd`/inst/lib
mkdir inst inst/lib

AT_DATA([a.c],
[[/* a */
#ifdef __cplusplus
extern "C" {
#endif

int v1 = -1;
int v2 (void) { return -2; }

#ifdef __cplusplus
}
#endif
]])

AT_DATA([syms],
[[v1
v2
]])

AT_DATA([def1],
[[EXPORTS
v1 DATA
v2
]])

AT_DATA([def2],
[[; Def file
    ; with some very important comments
EXPORTS
v1 DATA
v2
]])

AT_DATA([def3],
[[
   EXPORTS v1 DATA
   v2
]])

AT_DATA([def4],
[[	LIBRARY %soname%
EXPORTS
v1 DATA
v2
]])

AT_DATA([main.c],
[[
/* w32 fun.  With GCC, you can have auto-import, which will work for
 * functions and non-const variables.  With MSVC, you have to explicitly
 * import all variables.
 *
 * For users, it's best to realize that they should not provide any
 * non-function API at all.
 */
#if defined LIBA_DLL_IMPORT
#  if defined _WIN32 && defined _MSC_VER
#    define LIBA_SCOPE_VAR extern __declspec(dllimport)
#  endif
#endif
#if !defined LIBA_SCOPE_VAR
#  define LIBA_SCOPE_VAR extern
#endif
#ifdef __cplusplus
extern "C" {
#endif
LIBA_SCOPE_VAR int v1;
extern int v2(void);
#ifdef __cplusplus
}
#endif

int main (void)
{
  return v1 + v2() + 3;
}
]])

name=a
eval libname=\"$libname_spec\"
major=0
versuffix=-$major
eval soname=\"$soname_spec\"

AT_CHECK([$LIBTOOL --mode=compile $CC $CPPFLAGS $CFLAGS -c a.c],[0],[ignore],[ignore])
AT_CHECK([$CC $CPPFLAGS -DLIBA_DLL_IMPORT $CFLAGS -c main.c],[0],[ignore],[ignore])

for exportsyms in syms def1 def2 def3 def4
do
  $SED "s/%soname%/$soname/" -i $exportsyms

  LT_AT_CHECK([eval '$LIBTOOL --mode=link $CC $CFLAGS $LDFLAGS -o liba.la a.lo \
	       -rpath $libdir' -export-symbols $exportsyms], [], [ignore], [ignore])
  AT_CHECK([$LIBTOOL --mode=link $CC $CFLAGS $LDFLAGS -o main$EXEEXT main.$OBJEXT liba.la],
	   [], [ignore], [ignore])
  LT_AT_EXEC_CHECK([./main])
done

AT_CLEANUP