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build: make the C99 requirement explicit #193

Merged
merged 1 commit into from
Jan 19, 2023
Merged

build: make the C99 requirement explicit #193

merged 1 commit into from
Jan 19, 2023

Commits on Jan 15, 2023

  1. build: make the C99 requirement explicit 

    Recent code uses C99 syntax (as reported in PCRE2Project#163, and therefore it
will fail to build unless C99 (or higher) support is required by the
compiler (gcc >= 5 does it by default).

For those unfortunate to need an older compiler that does require a
flag to enable that, make sure that both autoconf and cmake make it
explicit.

While testing the change with the ancient autoconf version listed as
a prerequisite, noticed that the LT_INIT syntax introduced with 91485e5
(Update configure.ac for latest version of autoconf., 2021-02-02), was
not supported, so update the autoconf minimum as well.
    @carenas
    carenas committed Jan 15, 2023
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