https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63810
--- Comment #1 from Jeremy Huddleston Sequoia <jeremyhu at macports dot org> ---
Larry said that he's working on a patch to fix this for gcc trunk, and I
suspect he's pretty close to having something since that was about a week ago.
The algorithm for determining what the macro should be is quite simple:
Split the string by "."
Use implicit "0" if there are less than three elements.
if (first field is >10) or (first field is 10 and second field >= 10), use
"%02d%02d%02d" as the format
else use "%02d%01d%01d" as the format
I had to do this in bash for some unrelated reason, and here it is in case it
is helpful to you:
BUILD_MAJOR=$(echo ${PRODUCT_VERSION} | cut -f1 -d.)
BUILD_MINOR=$(echo ${PRODUCT_VERSION} | cut -f2 -d.)
BUILD_TINY=$(echo ${PRODUCT_VERSION} | cut -f3 -d.)
[[ -z "${BUILD_MINOR}" ]] && BUILD_MINOR="0"
[[ -z "${BUILD_TINY}" ]] && BUILD_TINY="0"
if ((BUILD_MAJOR > 10 || (BUILD_MAJOR == 10 && BUILD_MINOR >= 10))) ; then
VERSION_ENCODED=$(printf "%02d%02d%02d" ${BUILD_MAJOR} ${BUILD_MINOR}
${BUILD_TINY})
else
VERSION_ENCODED=$(printf "%02d%01d%01d" ${BUILD_MAJOR} ${BUILD_MINOR}
${BUILD_TINY})
fi
For clang, I did this (slightly less clean):
- char Str[5];
- Str[0] = '0' + (Maj / 10);
- Str[1] = '0' + (Maj % 10);
- Str[2] = '0' + std::min(Min, 9U);
- Str[3] = '0' + std::min(Rev, 9U);
- Str[4] = '\0';
+ char Str[7];
+ if (Maj < 10 || Maj == 10 && Min < 10) {
+ Str[0] = '0' + (Maj / 10);
+ Str[1] = '0' + (Maj % 10);
+ Str[2] = '0' + std::min(Min, 9U);
+ Str[3] = '0' + std::min(Rev, 9U);
+ Str[4] = '\0';
+ } else {
+ Str[0] = '0' + (Maj / 10);
+ Str[1] = '0' + (Maj % 10);
+ Str[2] = '0' + (Min / 10);
+ Str[3] = '0' + (Min % 10);
+ Str[4] = '0' + (Rev / 10);
+ Str[5] = '0' + (Rev % 10);
+ Str[6] = '\0';
+ }
