configure.ac: Do not use '+=' to set CFLAGS to be POSIX-compliant #244
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The '+=' operator used in configure.ac to append to the CFLAGS variable is present in Bash, but not the POSIX sh specification. Therefore, the aforementioned part of the configure.ac (from which the configure script is obtained) might not run correctly under non Bash-like POSIX compliant shells (dash - default shell on Debian, ash, etc). Bug: https://bugs.gentoo.org/924200 Signed-off-by: Zurab Kvachadze <zurabid2016@gmail.com>
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The '+=' operator used in configure.ac to append to the CFLAGS variable is present in Bash, but not the POSIX sh specification. Therefore, the aforementioned part of the configure.ac (from which the configure script is obtained) might not run correctly under non Bash-like POSIX compliant shells (dash - default shell on Debian, ash, etc).
Bug: https://bugs.gentoo.org/924200