Commit 6789dfc5 authored by Daniel Stenberg's avatar Daniel Stenberg
Browse files

Perhaps -Wundef is better on gcc versions after 2.95, since the autobuild 

on FreeBSD gives us lots of warnings in system headers and I suspect this
option is what causes them!
parent 193a652e

acinclude.m4

+24 −15
Original line number Diff line number Diff line
@@ -518,14 +518,22 @@ AC_DEFUN([CURL_CC_DEBUG_OPTS], 
            WARN="-Wall $WARN"

         fi

       else dnl $ICC = yes

         dnl 

         WARN="-W -Wall -Wwrite-strings -pedantic -Wno-long-long -Wundef -Wpointer-arith -Wnested-externs -Winline -Wmissing-declarations -Wmissing-prototypes -Wsign-compare"

         dnl this is a set of options we believe *ALL* gcc versions support:

         WARN="-W -Wall -Wwrite-strings -pedantic -Wno-long-long -Wpointer-arith -Wnested-externs -Winline -Wmissing-declarations -Wmissing-prototypes -Wsign-compare"



         dnl -Wcast-align is a bit too annoying on all gcc versions ;-)



         dnl -Wcast-align is a bit too annoying ;-)

         if test "$gccnum" -gt "295"; then

           dnl only if the compiler is newer than 2.95 since we got lots of

           dnl "`_POSIX_C_SOURCE' is not defined" in system headers with

           dnl gcc 2.95.4 on FreeBSD 4.9!

           WARN="$WARN -Wundef"

         fi



         if test "$gccnum" -ge "296"; then

           dnl gcc 2.96 or later

           WARN="$WARN -Wfloat-equal"

         fi



         if test "$gccnum" -gt "296"; then

           dnl this option does not exist in 2.96
@@ -538,12 +546,13 @@ AC_DEFUN([CURL_CC_DEBUG_OPTS], 
           dnl gcc 3.3 and later

           WARN="$WARN -Wendif-labels -Wstrict-prototypes"

         fi

         fi



         for flag in $CPPFLAGS; do

           case "$flag" in

            -I*)

              dnl include path

              dnl Include path, provide a -isystem option for the same dir

              dnl to prevent warnings in those dirs. The -isystem was not very

              dnl reliable on earlier gcc versions.

              add=`echo $flag | sed 's/^-I/-isystem /g'`

              WARN="$WARN $add"

              ;;