X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/f3ead217b8636f623399e66bd937b1c51774d4af..465df9c65c7022a66e9cea7145b80886174e90af:/tests/atlocal.in diff --git a/tests/atlocal.in b/tests/atlocal.in index a545e5e2..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. ## ## ------------------- ## @@ -44,12 +53,24 @@ 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