X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/f6b561d9f9cbc6fc95bbb86518372a5cb52f45a6..11aef5e95b890364474c49c7d4529de2bec3544e:/tests/atlocal.in?ds=sidebyside diff --git a/tests/atlocal.in b/tests/atlocal.in index e350d137..bdc6d47c 100644 --- a/tests/atlocal.in +++ b/tests/atlocal.in @@ -19,6 +19,15 @@ # We need `config.h'. CPPFLAGS="-I$abs_top_builddir/lib @CPPFLAGS@" +# Don't just check if $POSIXLY_CORRECT is set, as Bash, when launched +# as /bin/sh, sets the shell variable POSIXLY_CORRECT to y, but not +# the environment variable. +if env | grep '^POSIXLY_CORRECT=' >/dev/null; then + POSIXLY_CORRECT_IS_EXPORTED=true +else + POSIXLY_CORRECT_IS_EXPORTED=false +fi + ## ------------------- ## ## C/C++ Compilation. ## ## ------------------- ## @@ -38,15 +47,30 @@ NO_WERROR_CXXFLAGS='@CXXFLAGS@ @WARN_CXXFLAGS@ @WARN_CXXFLAGS_TEST@' CFLAGS="$NO_WERROR_CFLAGS @WERROR_CFLAGS@" CXXFLAGS="$NO_WERROR_CXXFLAGS @WERROR_CXXFLAGS@" +# C++ variants break strict aliasing analysis. +NO_STRICT_ALIAS_CXXFLAGS='@NO_STRICT_ALIAS_CXXFLAGS@' + # If 'exit 77'; skip all C++ tests; otherwise ':'. BISON_CXX_WORKS='@BISON_CXX_WORKS@' +# 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 +103,12 @@ 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