dpkg-buildpackage: source package test gcc -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat-security -Werror=format-security -D_FORTIFY_SOURCE=2 -c test-a.c gcc -g -O2 -fstack-protector -Wformat -Wformat-security -Werror=format-security -D_FORTIFY_SOURCE=2 -c test-b.c gcc -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -D_FORTIFY_SOURCE=2 -c test-c.c gcc -Wl,-z,relro -o test test-a.o test-b.o test-c.o -ltest # Compiling and linking in one step must also check CFLAGS/CPPFLAGS. gcc -Wl,-z,relro -o test test.c -ltest gcc -shared -fPIC -Wl,-z,relro -o test.so test.c -ltest gcc -fPIC -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat-security -Werror=format-security -c -D_FORTIFY_SOURCE=2 ../../../../src/test/test.c -o test.so.o gcc test.c -o test.output (gcc -Wl,-z,relro -o test.output test.c)