Explicitly assigning value of variable - Rebuild of the Debian archive with clang

"Explicitly assigning value of variable" build failure(s)
clang 4.0.1

Versions: 2.9 - 3.0 - 3.1 - 3.2 - 3.3 - 3.4 - 3.4.2 - 3.5.0 - 3.6.0 - 3.8.1 - 3.9.1 - 4.0.1 - 5.0 - 6.0 - 8.0.1 - 9.0.1 - 10.0.0 - 11.0.0 - 12.0.1 - 13.0.0

Package	Version	Supposed error message	Full log
mailavenger	0.8.4-4.1	pcre.c:1338:6: error: explicitly assigning value of variable of type 'BOOL' (aka 'int') to itself [-Werror,-Wself-assign]	Log
massxpert	3.6.1-1	chemicalGroup.cpp:548:12: error: explicitly assigning value of variable of type 'int' to itself [-Werror,-Wself-assign]	Log
pam-python	1.0.6-1	pam_python.c:1523:11: error: explicitly assigning value of variable of type 'void *' to itself [-Werror,-Wself-assign]	Log

3 errors

Debian Package rebuild