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OCTOBER 6, 2026
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gcc/cobol

Support non-bootstrap builds for GCC 8.5 with brace initialization

A minor change in the COBOL parser enables non-bootstrap builds with GCC 8.5 by correctly handling brace-initialized elements.

This commit updates the COBOL parser to support non-bootstrap builds when using GCC 8.5. It addresses an issue where brace-initialized construction of elements required each element to be explicitly constructed, now adding wordop_t to each element in parse.y.

In Details

The COBOL parser's parse.y file is updated to include wordop_t for each element within a brace-initialized list. This change accommodates GCC 8.5's stricter brace initialization rules, which mandate explicit construction for each element, thus enabling non-bootstrap builds for the COBOL front-end.

For Context
non-bootstrap build
A build process where the compiler being used is not a previously built version of the same compiler. This is in contrast to a bootstrap build, which uses a prior version of the compiler to build the new one.
brace initialization
A C++ initialization syntax using curly braces {} to initialize objects or aggregate types. Different compiler versions may have slightly different interpretations or requirements for this syntax.
wordop_t
Likely a type or structure within the COBOL parser related to operations on tokens or words, used here to ensure elements in a list are properly initialized.
parse.y
A file typically containing grammar rules for a parser generator like Bison (or Yacc), used here for the COBOL front-end.
Filed Under: cobolbuild