Recommended gcc warning options for C [closed]

I routinely use:

    gcc -m64 -std=c99 -pedantic -Wall -Wshadow -Wpointer-arith -Wcast-qual \        -Wstrict-prototypes -Wmissing-prototypes

This set catches a lot for people unused to it (people whose code I get to compile with those flags for the first time); it seldom gives me a problem (though -Wcast-qual is occasionally a nuisance).

As of 2011-09-01, with gcc version 4.6.1

My current "development" alias

gcc -std=c89 -pedantic -Wall \    -Wno-missing-braces -Wextra -Wno-missing-field-initializers -Wformat=2 \    -Wswitch-default -Wswitch-enum -Wcast-align -Wpointer-arith \    -Wbad-function-cast -Wstrict-overflow=5 -Wstrict-prototypes -Winline \    -Wundef -Wnested-externs -Wcast-qual -Wshadow -Wunreachable-code \    -Wlogical-op -Wfloat-equal -Wstrict-aliasing=2 -Wredundant-decls \    -Wold-style-definition -Werror \    -ggdb3 \    -O0 \    -fno-omit-frame-pointer -ffloat-store -fno-common -fstrict-aliasing \    -lm

The "release" alias

gcc -std=c89 -pedantic -O3 -DNDEBUG -flto -lm

As of 2009-11-03

"development" alias

gcc -Wall -Wextra -Wformat=2 -Wswitch-default -Wcast-align -Wpointer-arith \    -Wbad-function-cast -Wstrict-prototypes -Winline -Wundef -Wnested-externs \    -Wcast-qual -Wshadow -Wwrite-strings -Wconversion -Wunreachable-code \    -Wstrict-aliasing=2 -ffloat-store -fno-common -fstrict-aliasing \    -lm -std=c89 -pedantic -O0 -ggdb3 -pg --coverage

"release" alias

gcc -lm -std=c89 -pedantic -O3 -DNDEBUG --combine -fwhole-program -funroll-loops

I started out with C++, so when I made the switch to learning C I made sure to be extra-anal:

-fmessage-length=0-ansi -pedantic -std=c99-Werror-Wall-Wextra-Wwrite-strings-Winit-self-Wcast-align-Wcast-qual-Wpointer-arith-Wstrict-aliasing-Wformat=2-Wmissing-declarations-Wmissing-include-dirs-Wno-unused-parameter-Wuninitialized-Wold-style-definition-Wstrict-prototypes-Wmissing-prototypes