nginx/auto/cc

case $CC in

    *gcc)

         # optimization
         #CFLAGS="$CFLAGS -O2 -fomit-frame-pointer"
         # optimize for Pentium Pro, Pentium II and Pentium III
         #CFLAGS="$CFLAGS -march=pentiumpro"
         # optimize for Pentium 4, gcc 3.x
         #CFLAGS="$CFLAGS -march=pentium4"

         # warnings
         CFLAGS="$CFLAGS -O -W"
         CFLAGS="$CFLAGS -Wall -Wpointer-arith"
         #CFLAGS="$CFLAGS -Wconversion"
         #CFLAGS="$CFLAGS -Winline"

         # we have a lot of the unused function arguments
         CFLAGS="$CFLAGS -Wno-unused"

         # stop on warning
         CFLAGS="$CFLAGS -Werror"

         # ANSI C warnings
         #CFLAGS="$CFLAGS -pedantic"

         # debug
         CFLAGS="$CFLAGS -g"

         have=HAVE_GCC_VARIADIC_MACROS . auto/have

         OBJEXT=o
         OBJOUT="-o "
         BINOUT="-o "

         CC_STRONG="$CC -Wall -Werror"
    ;;


    *icc)
         # Intel C++ compiler 7.1

         # optimization
         CFLAGS="$CFLAGS -O"
         # optimize for Pentium Pro, Pentium II and Pentium III
         CFLAGS="$CFLAGS -mcpu=pentiumpro -march=pentiumpro"
         # optimize for Pentium 4, default
         #CFLAGS="$CFLAGS -march=pentium4"

         # warnings
         CFLAGS="$CFLAGS -w1"

         # stop on warning
         CFLAGS="$CFLAGS -Werror"

         have=HAVE_C99_VARIADIC_MACROS . auto/have

         OBJEXT=o
         OBJOUT="-o "
         BINOUT="-o "

         CC_STRONG="$CC -w1 -Werror"
    ;;


    cl)
         # MSVC 6.0 SP2

         # optimization

         # maximize speed
         CFLAGS="$CFLAGS -O2"
         # enable global optimization
         CFLAGS="$CFLAGS -Og"
         # enable intrinsic functions
         CFLAGS="$CFLAGS -Oi"
         # inline expansion
         CFLAGS="$CFLAGS -Ob1"
         # enable frame pointer omission
         CFLAGS="$CFLAGS -Oy"
         # disable stack checking calls
         CFLAGS="$CFLAGS -Gs"
         # optimize for Pentium Pro
         CFLAGS="$CFLAGS -G6"

         # warnings
         CFLAGS="$CFLAGS -W3"
         #CFLAGS="$CFLAGS -W4"

         # stop on warning
         CFLAGS="$CFLAGS -WX"

         # multithreaded
         CFLAGS="$CFLAGS -MT"

         # disable logo
         CFLAGS="$CFLAGS -nologo"

         # link flags
         CORE_LINK="$CORE_LINK -link"

         # msvcrt.dll
         CORE_LINK="$CORE_LINK -nodefaultlib:libcmt"

         # static libc
         #CORE_LINK="$CORE_LINK -nodefaultlib:msvcrt"

         CORE_LINK="$CORE_LINK -verbose:lib"

         # debug
         CFLAGS="$CFLAGS -Yd"
         CORE_LINK="$CORE_LINK -debug -debugtype:coff"

         OBJEXT=obj
         OBJOUT="-Fo"
         BINOUT="-Fe"

         CC_STRONG="$CC -W3 -WX"
    ;;

esac