diff options
Diffstat (limited to 'src/Makefile.in')
| -rw-r--r-- | src/Makefile.in | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/Makefile.in b/src/Makefile.in index 9eaf95a42..0f2048664 100644 --- a/src/Makefile.in +++ b/src/Makefile.in @@ -1716,6 +1716,25 @@ check-misc: done | $(ASSORT) -u ) > $@-t chmod a-w $@-t mv $@-t $@ + +# The following rule is not designed to be portable, +# and relies on tools that not everyone has. + +# Most functions in src/*.c should have static scope. +# Any that don't must be marked with `extern', but `main' +# and `usage' are exceptions. They're always extern, but +# don't need to be marked. +sc_src_functions_have_static_scope: $(all_programs) + @t=exceptions-$$$$; \ + trap "s=$$?; rm -f $$t; exit $$s" 0 1 2 13 15; \ + ( printf '^main$$\n^usage$$\n'; \ + grep -h -A1 '^extern .*[^;]$$' $(SOURCES) \ + | grep -vE '^(extern |--)' |sed 's/^/^/;s/ .*/$$/' ) > $$t; \ + nm -e *.$(OBJEXT) \ + | sed -n 's/.* T //p' \ + | grep -Ev -f $$t && \ + { echo 'the above functions should have static scope' 1>&2; \ + exit 1; } || : # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: |