That export patch failed and generated more error lines than the original
PKGBUILD had.  I put that export line as the first line of the prepare
section in the PKGBUILD as a test.

On Thu, 23 Nov 2023, Jelle van der Waa wrote:

export CFLAGS="${CFLAGS} -Wno-format-security" in the PKGBUILD

That line is not a patch but changes build flags . Try putting it as first line in the build() function

(or package function if it doesn't have  a build() function)

Lone_Wolf