X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/ac3f2e33b464a168b84ddb8a2da2195a6656dd19..fc5618b3387fb1311c9d88187655191088f09cc2:/tests/atlocal.in

diff --git a/tests/atlocal.in b/tests/atlocal.in
index 0b888d16..8adb3933 100644
--- a/tests/atlocal.in
+++ b/tests/atlocal.in
@@ -16,30 +16,52 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-# We need a C compiler.
-: ${CC='@CC@'}
-
-# We want no optimization.
-CFLAGS='@O0CFLAGS@ @WARN_CFLAGS_TEST@ @WERROR_CFLAGS@'
-
-# Sometimes a test group needs to ignore gcc warnings, so it locally
-# sets CFLAGS to this.
-NO_WERROR_CFLAGS='@O0CFLAGS@ @WARN_CFLAGS_TEST@'
-
 # We need `config.h'.
 CPPFLAGS="-I$abs_top_builddir/lib @CPPFLAGS@"
 
+## ------------------- ##
+## C/C++ Compilation.  ##
+## ------------------- ##
+
+: ${CC='@CC@'}
+: ${CXX='@CXX@'}
+
 # Is the compiler GCC?
 GCC='@GCC@'
 
-# The C++ compiler.
-: ${CXX='@CXX@'}
+# We want no optimization, as they uncover warnings (therefore,
+# failures) about uninitialized variables in the test suite.  FIXME:
+# fix the warnings, not the flags.
+  O0CFLAGS=`echo '@CFLAGS@'   | sed 's/-O[0-9s] *//g'`
+O0CXXFLAGS=`echo '@CXXFLAGS@' | sed 's/-O[0-9s] *//g'`
+
+# Sometimes a test group needs to ignore gcc warnings, so it locally
+# sets CFLAGS to this.
+  NO_WERROR_CFLAGS="$O0CFLAGS   @WARN_CFLAGS@   @WARN_CFLAGS_TEST@"
+NO_WERROR_CXXFLAGS="$O0CXXFLAGS @WARN_CXXFLAGS@ @WARN_CXXFLAGS_TEST@"
+
+# But most of the time, we want -Werror.
+  CFLAGS="$NO_WERROR_CFLAGS   @WERROR_CFLAGS@"
+CXXFLAGS="$NO_WERROR_CXXFLAGS @WERROR_CXXFLAGS@"
 
 # If 'exit 77'; skip all C++ tests; otherwise ':'.
 BISON_CXX_WORKS='@BISON_CXX_WORKS@'
 
-# We want no optimization with C++, too.
-CXXFLAGS='@O0CXXFLAGS@ @WARN_CXXFLAGS_TEST@ @WERROR_CFLAGS@'
+# 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
+  O0CFLAGS=$O0CXXFLAGS
+  NO_WERROR_CFLAGS=$NO_WERROR_CXXFLAGS
+  CFLAGS=$CXXFLAGS
+else
+  CC_IS_CXX=0
+fi
+
+
+## ------- ##
+## Other.  ##
+## ------- ##
 
 # Are special link options needed?
 LDFLAGS='@LDFLAGS@'
@@ -56,8 +78,9 @@ CONF_JAVA='@CONF_JAVA@'
 # Empty if no xsltproc was found
 : ${XSLTPROC='@XSLTPROC@'}
 
-# We need egrep.
+# We need egrep and perl.
 : ${EGREP='@EGREP@'}
+: ${PERL='@PERL@'}
 
 # Use simple quotes (lib/quote.c).
 LC_CTYPE=C