tests/pic_flag.at

# pic_flag.at -- override the pic_flag at configure time   -*- Autotest -*-

#   Copyright (C) 2010-2019, 2021-2025 Free Software Foundation, Inc.
#
#   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([override pic_flag at configure time])

# Just try to configure the Libtool package with -fpic if we can compile
# with it, for C and C++.

AT_DATA([foo.c],
[[int data = 42;
int func(void) { return data; }
]])

cp foo.c foo.cpp
C_pic_flag='-fpic -DPIC'
AT_CHECK([$CC $CPPFLAGS $CFLAGS $C_pic_flag -c foo.c || exit 77],
	 [], [stdout], [stderr])
# The configure test for the PIC flag also checks for warnings.
AT_CHECK([$GREP fpic stdout stderr && exit 77], [1])
AT_CHECK([[$GREP '[uU]nknown.*option' stdout stderr && exit 77]], [1])

CXX_pic_flag='-fpic -DPIC'
if $CXX $CPPFLAGS $CXXFLAGS $CXX_pic_flag -c foo.cpp; then :; else
  CXX_pic_flag=
fi

# Set up a tests/demo.at style project.
_LT_DEMO_SETUP

# Bootstrap, and configure it so that we can extract libtool --config
# settings.
LT_AT_BOOTSTRAP([], [-I m4], [], [--add-missing], [],
    [ignore], [ignore])

LT_AT_CONFIGURE([lt_cv_prog_compiler_pic="$C_pic_flag" ]dnl
		[lt_cv_prog_compiler_pic_CXX="$CXX_pic_flag"],
		[./configure])
: ${MAKE=make}
AT_CHECK([$MAKE], [], [stdout], [ignore])
AT_CHECK([if ./libtool --features | $GREP 'enable shared libraries'; then ]dnl
	 [  $GREP ' -fpic' stdout; else exit 77; fi], [], [ignore], [ignore])

AT_CLEANUP