| |
| dnl We create a function for detecting which compiler we use and then set as |
| dnl pendantic compiler options as possible for that particular compiler. The |
| dnl options are only used for debug-builds. |
| |
| dnl This is a copy of the original found in curl's configure script. Don't |
| dnl modify this one, edit the one in curl and copy it back here when that one |
| dnl is changed. |
| |
| AC_DEFUN([CURL_CC_DEBUG_OPTS], |
| [ |
| if test "$GCC" = "yes"; then |
| |
| dnl figure out gcc version! |
| AC_MSG_CHECKING([gcc version]) |
| gccver=`$CC -dumpversion` |
| num1=`echo $gccver | cut -d . -f1` |
| num2=`echo $gccver | cut -d . -f2` |
| gccnum=`(expr $num1 "*" 100 + $num2) 2>/dev/null` |
| AC_MSG_RESULT($gccver) |
| |
| AC_MSG_CHECKING([if this is icc in disguise]) |
| AC_EGREP_CPP([^__INTEL_COMPILER], [__INTEL_COMPILER], |
| dnl action if the text is found, this it has not been replaced by the |
| dnl cpp |
| ICC="no" |
| AC_MSG_RESULT([no]), |
| dnl the text was not found, it was replaced by the cpp |
| ICC="yes" |
| AC_MSG_RESULT([yes]) |
| ) |
| |
| if test "$ICC" = "yes"; then |
| dnl this is icc, not gcc. |
| |
| dnl ICC warnings we ignore: |
| dnl * 279 warns on static conditions in while expressions |
| dnl * 269 warns on our "%Od" printf formatters for curl_off_t output: |
| dnl "invalid format string conversion" |
| |
| WARN="-wd279,269" |
| |
| if test "$gccnum" -gt "600"; then |
| dnl icc 6.0 and older doesn't have the -Wall flag |
| WARN="-Wall $WARN" |
| fi |
| else dnl $ICC = yes |
| dnl |
| WARN="-W -Wall -Wwrite-strings -pedantic -Wno-long-long -Wundef -Wpointer-arith -Wnested-externs -Winline -Wmissing-declarations -Wmissing-prototypes -Wsign-compare" |
| |
| dnl -Wcast-align is a bit too annoying ;-) |
| |
| if test "$gccnum" -ge "296"; then |
| dnl gcc 2.96 or later |
| WARN="$WARN -Wfloat-equal" |
| |
| if test "$gccnum" -gt "296"; then |
| dnl this option does not exist in 2.96 |
| WARN="$WARN -Wno-format-nonliteral" |
| fi |
| |
| dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on |
| dnl on i686-Linux as it gives us heaps with false positives |
| if test "$gccnum" -ge "303"; then |
| 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 |
| add=`echo $flag | sed 's/^-I/-isystem /g'` |
| WARN="$WARN $add" |
| ;; |
| esac |
| done |
| |
| fi dnl $ICC = no |
| |
| CFLAGS="$CFLAGS $WARN" |
| |
| fi dnl $GCC = yes |
| |
| dnl strip off optimizer flags |
| NEWFLAGS="" |
| for flag in $CFLAGS; do |
| case "$flag" in |
| -O*) |
| dnl echo "cut off $flag" |
| ;; |
| *) |
| NEWFLAGS="$NEWFLAGS $flag" |
| ;; |
| esac |
| done |
| CFLAGS=$NEWFLAGS |
| |
| ]) dnl end of AC_DEFUN() |
| |
