X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/23d13411c85d3a8705f9507219f61eddea57a218..0bd5ee5f8919a74cd3f4b8da3f51da99193e1319:/tests/atlocal.in
diff --git a/tests/atlocal.in b/tests/atlocal.in
index e350d137..0184ae19 100644
--- a/tests/atlocal.in
+++ b/tests/atlocal.in
@@ -1,7 +1,7 @@
# @configure_input@ -*- shell-script -*-
# Configurable variable values for Bison test suite.
-# Copyright (C) 2000-2012 Free Software Foundation, Inc.
+# Copyright (C) 2000-2013 Free Software Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -16,9 +16,18 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see .
-# We need `config.h'.
+# We need 'config.h'.
CPPFLAGS="-I$abs_top_builddir/lib @CPPFLAGS@"
+# Don't just check if $POSIXLY_CORRECT is set, as Bash, when launched
+# as /bin/sh, sets the shell variable POSIXLY_CORRECT to y, but not
+# the environment variable.
+if env | grep '^POSIXLY_CORRECT=' >/dev/null; then
+ POSIXLY_CORRECT_IS_EXPORTED=true
+else
+ POSIXLY_CORRECT_IS_EXPORTED=false
+fi
+
## ------------------- ##
## C/C++ Compilation. ##
## ------------------- ##
@@ -41,12 +50,54 @@ CXXFLAGS="$NO_WERROR_CXXFLAGS @WERROR_CXXFLAGS@"
# If 'exit 77'; skip all C++ tests; otherwise ':'.
BISON_CXX_WORKS='@BISON_CXX_WORKS@'
+# Be sure that the C++ compiler is not broken because of gnulib. This
+# cannot be checked in configure (gnulib is not parameterized yet),
+# and checking this in every C++ test in AC_COMPILE_CXX is too costly.
+#
+# http://lists.gnu.org/archive/html/bug-bison/2013-06/msg00001.html
+#
+# FIXME: Check (say 2014) whether this is still needed.
+if $BISON_CXX_WORKS; then
+ # See AT_DATA_SOURCE_PROLOGUE.
+ cat >conftest.cc <
+/* We don't need perfect functions for these tests. */
+#undef malloc
+#undef memcmp
+#undef realloc
+#include
+
+int main ()
+{
+ std::cout << "Works" << std::endl;
+}
+EOF
+ $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS $LIBS -o conftest conftest.cc
+ case $? in
+ 0);;
+ *) BISON_CXX_WORKS="as_fn_error 77 cannot-compile-simple-program";;
+ esac
+ rm -fr conftest*
+fi
+
+# Whether the compiler supports POSIXLY_CORRECT defined.
+: ${C_COMPILER_POSIXLY_CORRECT='@C_COMPILER_POSIXLY_CORRECT@'}
+: ${CXX_COMPILER_POSIXLY_CORRECT='@CXX_COMPILER_POSIXLY_CORRECT@'}
+
+if $POSIXLY_CORRECT_IS_EXPORTED; then
+ $C_COMPILER_POSIXLY_CORRECT ||
+ BISON_C_WORKS="as_fn_error 77 POSIXLY_CORRECT"
+ $CXX_COMPILER_POSIXLY_CORRECT ||
+ BISON_CXX_WORKS="as_fn_error 77 POSIXLY_CORRECT"
+fi
+
# Handle --compile-c-with-cxx here, once CXX and CXXFLAGS are known.
if "$at_arg_compile_c_with_cxx"; then
CC_IS_CXX=1
CC=$CXX
NO_WERROR_CFLAGS=$NO_WERROR_CXXFLAGS
CFLAGS=$CXXFLAGS
+ BISON_C_WORKS=$BISON_CXX_WORKS
else
CC_IS_CXX=0
fi
@@ -79,9 +130,12 @@ LIBS="$abs_top_builddir/lib/libbison.a @LIBS@ @INTLLIBS@"
# Empty if no xsltproc was found
: ${XSLTPROC='@XSLTPROC@'}
-
-# Handle --compile-c-with-cxx here, once CXX and CXXFLAGS are known.
-if "$at_arg_compile_c_with_cxx"; then
- CC=$CXX
- CFLAGS=$CXXFLAGS
+# Don't just check if $POSIXLY_CORRECT is set, as Bash, when launched
+# as /bin/sh, sets the shell variable POSIXLY_CORRECT to y, but not
+# the environment variable.
+: ${C_COMPILER_POSIXLY_CORRECT='@C_COMPILER_POSIXLY_CORRECT@'}
+if env | grep '^POSIXLY_CORRECT=' >/dev/null; then
+ POSIXLY_CORRECT_IS_EXPORTED=true
+else
+ POSIXLY_CORRECT_IS_EXPORTED=false
fi