GCC warning options for numerical programs

[Jeffrey Walton]

Hi All,

http://www.gnu.org/software/gsl/manual/html_node/GCC-warning-options-for-numerical-programs.html
recommends the following:

     gcc -ansi -pedantic -Werror -Wall -W
       -Wmissing-prototypes -Wstrict-prototypes
       -Wconversion -Wshadow -Wpointer-arith
       -Wcast-qual -Wcast-align
       -Wwrite-strings -Wnested-externs
       -fshort-enums -fno-common -Dinline= -g -O2

Is it possible to efficiently tell which of the above options are not
included with -Wall -Wextra?

Wouldn't -Weverything be easier on folks who really want to know about
all errata? Its a helpful Clang switch.

Jeff