1# pic_flag.at -- override the pic_flag at configure time -*- Autotest -*- 2 3# Copyright (C) 2010-2015 Free Software Foundation, Inc. 4# 5# This file is part of GNU Libtool. 6# 7# GNU Libtool is free software; you can redistribute it and/or 8# modify it under the terms of the GNU General Public License as 9# published by the Free Software Foundation; either version 2 of 10# the License, or (at your option) any later version. 11# 12# GNU Libtool 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 GNU Libtool; see the file COPYING. If not, a copy 19# can be downloaded from http://www.gnu.org/licenses/gpl.html, 20# or obtained by writing to the Free Software Foundation, Inc., 21# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 22#### 23 24AT_SETUP([override pic_flag at configure time]) 25 26# Just try to configure the Libtool package with -fpic if we can compile 27# with it, for C and C++. 28 29AT_DATA([foo.c], 30[[int data = 42; 31int func(void) { return data; } 32]]) 33 34cp foo.c foo.cpp 35C_pic_flag='-fpic -DPIC' 36AT_CHECK([$CC $CPPFLAGS $CFLAGS $C_pic_flag -c foo.c || exit 77], 37 [], [stdout], [stderr]) 38# The configure test for the PIC flag also checks for warnings. 39AT_CHECK([$GREP fpic stdout stderr && exit 77], [1]) 40AT_CHECK([[$GREP '[uU]nknown.*option' stdout stderr && exit 77]], [1]) 41 42CXX_pic_flag='-fpic -DPIC' 43if $CXX $CPPFLAGS $CXXFLAGS $CXX_pic_flag -c foo.cpp; then :; else 44 CXX_pic_flag= 45fi 46 47# Set up a tests/demo.at style project. 48_LT_DEMO_SETUP 49 50# Bootstrap, and configure it so that we can extract libtool --config 51# settings. 52LT_AT_BOOTSTRAP([], [-I m4], [], [--add-missing], [], 53 [ignore], [ignore]) 54 55LT_AT_CONFIGURE([lt_cv_prog_compiler_pic="$C_pic_flag" ]dnl 56 [lt_cv_prog_compiler_pic_CXX="$CXX_pic_flag"], 57 [./configure]) 58: ${MAKE=make} 59AT_CHECK([$MAKE], [], [stdout], [ignore]) 60AT_CHECK([if ./libtool --features | $GREP 'enable shared libraries'; then ]dnl 61 [ $GREP ' -fpic' stdout; else exit 77; fi], [], [ignore], [ignore]) 62 63AT_CLEANUP 64