# a list of pkg-config bad constructions
# regex (xms)
# found in omnithread3.pc
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-[DU]__linux__) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-[DU]__x86_64__) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-D__OSVERSION__=\d+) \s
# found in znc.pc
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-g\d*) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-D_FORTIFY_SOURCE=\d+) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-O[s0-9]) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-W\S*) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-fvisibility=\w+) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-fPI[CE]) \s
# found in dolfin.pc
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-f(?:no-)?stack-protector) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (--param=ssp-buffer-size=\d+) \s
# found in clam_core.pc
[:=\h](-[IL](?:/usr/local/|/var/cache/pbuilder/build/|/var/lib/s?buildd?/)\S*)\s
# found in scilab.pc
^((?:[cC]flags\h*:|CFLAGS\h*=) (?:\V*\h)? -l\S+) \s
# found meep.pc
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-march=\S+) \s
# found opensaml.pc
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-[DU]NDEBUG) \s
# found in libspatialindex.pc
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-pedantic) \s
# found in common-cpp.pc
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-[DU]NEW_STDCPP) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-f(?:no-)?check-new) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-f(?:no-)?inline) \s
# found in postgresql, see 687208
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-pie) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-f(?:no-)?strict-aliasing) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-f(?:no-)?wrapv) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-fexcess-precision=\w+) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-f(?:no-)?unsafe-math-optimizations) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-f(?:no-)?signed-zeros) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-f(?:no-)?fp-contract) \s
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-f(?:no-)?finite-math-only) \s
# generic math
^(?:[^:]*flags\h*:|[^=]*FLAGS\h*=) (?:\V*\h)? (-f\S+math) \s
# found in libbt.pc
^(?:[lL]ibs\h*:|LDFLAGS\h*=) (?:\V*\h)? (-Wl,z,relro) \s
# unexpanded automake variable
(@[^@\s]*@)