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lalr1.cc: no longer require %defines.

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* data/lalr1.cc: Generate the parser header only when %defines is
passed.
* tests/calc.at: Check it.
This commit is contained in:
Akim Demaille
2012-07-30 15:49:28 +02:00
parent 28427f57ce
commit 85f0b29e6d
2 changed files with 13 additions and 6 deletions
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11
data/lalr1.cc
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@@ -336,7 +336,8 @@ b4_public_types_define])[
# We do want M4 expansion after # for CPP macros.
m4_changecom()
m4_divert_push(0)dnl
b4_defines_if(
[m4_divert_push(0)dnl
@output(b4_spec_defines_file@)@
b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++])
[
@@ -350,6 +351,11 @@ b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++])
]b4_cpp_guard_open([b4_spec_defines_file])[
]b4_shared_declarations[
]b4_cpp_guard_close([b4_spec_defines_file])
m4_divert_pop(0)dnl
])
m4_divert_push(0)dnl
@output(b4_parser_file_name@)@
b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++])
b4_percent_code_get([[top]])[]dnl
@@ -363,7 +369,8 @@ m4_if(b4_prefix, [yy], [],
]b4_null_define[
#include "@basename(]b4_spec_defines_file[@)"
]b4_defines_if([[#include "@basename(]b4_spec_defines_file[@)"]],
[b4_shared_declarations])[
/* User implementation prologue. */
]b4_user_post_prologue[