605dce2aac
examples/Makefile.am, examples/Makefile.def, examples/adder/Makefile.am, examples/calculator/Makefile.am, examples/cmilner/Makefile.am, examples/fdd/Makefile.am, examples/internal/Makefile.am, examples/milner/Makefile.am, examples/money/Makefile.am, examples/queen/Makefile.am, examples/solitar/Makefile.am, m4/debug.m4, m4/gccwarns.m4, ChangeLog, INSTALL: New files. * config, makefile, src/makefile, doc/makefile, examples/adder/makefile, examples/calculator/makefile examples/cmilner/makefile, examples/fdd/makefile, examples/internal/makefile, examples/milner/makefile, examples/money/makefile, examples/queen/makefile, examples/solitare/makefile : Delete. * examples/adder/adder.cxx, examples/fdd/statespace.cxx, examples/internal/bddtest.cxx, examples/milner/milner.cxx, examples/money/money.cxx, examples/queen/queen.cxx, examples/solitare/solitare.cxx: Include iostream. * examples/calculator/parser.y: Rename as ... * examples/calculator/parser.yxx: ... this. Remove spurious comas in %token, %right, and %left arguments. * examples/calculator/parser.h: Rename as ... * examples/calculator/parser_.h: ... this, because the bison rule with output parser.h (not tokens.h) from parser.y. * examples/calculator/lexer.l: Rename as ... * examples/calculator/lexer.lxx: ... this. Include parser.h instead of tokens.h. * examples/calculator/slist.h (voidSList::voisSListElem, SList::ite): Fix friend usage. * src/kernel.h (DEFAULT_CLOCK): Default to 60 if not already defined. * README: Update build instruction, and file listing.
51 lines
1.7 KiB
Text
51 lines
1.7 KiB
Text
dnl Check if the compiler supports useful warning options. There's a few that
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dnl we don't use, simply because they're too noisy:
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dnl
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dnl -ansi (prevents declaration of functions like strdup, and because
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dnl it makes warning in system headers).
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dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
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dnl -Wtraditional (combines too many unrelated messages, only a few useful)
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dnl -Wredundant-decls (system headers make this too noisy)
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dnl -pedantic
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dnl -Wunreachable-code (broken, see GCC PR/7827)
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dnl -Wredundant-decls (too many warnings in GLIBC's header with old GCC)
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dnl
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dnl A few other options have been left out because they are annoying in C++.
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AC_DEFUN([CF_GCC_WARNINGS],
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[if test -n "$GCC"; then
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AC_CACHE_CHECK([for $GCC warning options], ac_cv_prog_gxx_warn_flags,
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[
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cat > conftest.$ac_ext <<EOF
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#line __oline__ "configure"
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int main(int argc, char *argv[[]]) { return argv[[argc-1]] == 0; }
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EOF
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cf_save_CFLAGS="$CFLAGS"
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ac_cv_prog_gcc_warn_flags="-W -Wall"
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for cf_opt in \
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Waggregate-return \
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Wbad-function-cast \
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Wcast-align \
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Winline \
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Wnested-externs \
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Wpointer-arith \
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Wwrite-strings \
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Wmissing-declarations \
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Wmissing-prototypes \
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Wstrict-prototypes \
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Wshadow \
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Wcast-qual \
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do
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CFLAGS="$cf_save_CFLAGS $ac_cv_prog_gcc_warn_flags -$cf_opt"
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if AC_TRY_EVAL(ac_compile); then
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ac_cv_prog_gcc_warn_flags="$ac_cv_prog_gcc_warn_flags -$cf_opt"
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test "$cf_opt" = Wcast-qual && ac_cv_prog_gcc_warn_flags="$ac_cv_prog_gcc_warn_flags -DXTSTRINGDEFINES"
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fi
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done
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rm -f conftest*
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dnl CFLAGS="$cf_save_CFLAGS"
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])
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fi
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dnl AC_SUBST([WARNING_CFLAGS], ["${ac_cv_prog_gcc_warn_flags}"])
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])
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