diff options
| author |   Juro Bystricky <jurobystricky@hotmail.com> | 2014-11-27 10:32:59 -0800 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-12-05 17:42:47 +0000 |
| commit | 7f1bdc331304a61a4836a5752bca210450b6c5b5 (patch) | |
| tree | 9ec5822ae1ba2198236c9377227c1214d5384951 /meta/recipes-core/glibc/glibc/option-groups.patch | |
| parent | 9e4b25893cc8e15e390b8f25545416ef431f0b88 (diff) | |
| download | openembedded-core-contrib-7f1bdc331304a61a4836a5752bca210450b6c5b5.tar.gz | |
eglibc: modified option-groups.h generation
option-groups.h only explicitely #defines options that are enabled.
EGLIBC options are typically pre-processed under the assumption that if
an option is not explicitely defined then it evaluates as 0.
This assumption is correct, but it generates a compiler warning
message each time an undefined symbol is being evaluated.
In order to remove the warnings, each EGLIBC option is now defined
as 1 if the option is enabled or as 0 otherwise.
The consequence is we cannot use #ifdef OPTION_XXX when evaluating
the option, we must always use #if OPTION_XXX.
[YOCTO #7001]
Signed-off-by: Juro Bystricky <jurobystricky@hotmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Diffstat (limited to 'meta/recipes-core/glibc/glibc/option-groups.patch')
| -rw-r--r-- | meta/recipes-core/glibc/glibc/option-groups.patch | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/meta/recipes-core/glibc/glibc/option-groups.patch b/meta/recipes-core/glibc/glibc/option-groups.patch index 693bd2fbb8..198be73524 100644 --- a/meta/recipes-core/glibc/glibc/option-groups.patch +++ b/meta/recipes-core/glibc/glibc/option-groups.patch @@ -1358,8 +1358,8 @@ Index: git/scripts/option-groups.awk + print " It defines macros that indicate which EGLIBC option groups were" + print " configured in 'option-groups.config' when this C library was" + print " built. For each option group named OPTION_foo, it #defines" -+ print " __OPTION_foo to be 1 if the group is enabled, or leaves that" -+ print " symbol undefined if the group is disabled. */" ++ print " __OPTION_foo to be 1 if the group is enabled, or #defines that" ++ print " symbol to be 0 if the group is disabled. */" + print "" + print "#ifndef __GNU_OPTION_GROUPS_H" + print "#define __GNU_OPTION_GROUPS_H" @@ -1379,7 +1379,7 @@ Index: git/scripts/option-groups.awk + if (vars[var] == "y") + print "#define __" var " 1" + else if (vars[var] == "n") -+ print "/* #undef __" var " */" ++ print "#define __" var " 0" + else if (vars[var] ~ /^[0-9]+/ || + vars[var] ~ /^0x[0-9aAbBcCdDeEfF]+/ || + vars[var] ~ /^\"/) |