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101 lines
3.0 KiB
101 lines
3.0 KiB
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dnl We create a function for detecting which compiler we use and then set as |
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dnl pendantic compiler options as possible for that particular compiler. The |
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dnl options are only used for debug-builds. |
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dnl This is a copy of the original found in curl's configure script. Don't |
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dnl modify this one, edit the one in curl and copy it back here when that one |
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dnl is changed. |
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AC_DEFUN([CURL_CC_DEBUG_OPTS], |
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[ |
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if test "$GCC" = "yes"; then |
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dnl figure out gcc version! |
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AC_MSG_CHECKING([gcc version]) |
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gccver=`$CC -dumpversion` |
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num1=`echo $gccver | cut -d . -f1` |
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num2=`echo $gccver | cut -d . -f2` |
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gccnum=`(expr $num1 "*" 100 + $num2) 2>/dev/null` |
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AC_MSG_RESULT($gccver) |
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AC_MSG_CHECKING([if this is icc in disguise]) |
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AC_EGREP_CPP([^__INTEL_COMPILER], [__INTEL_COMPILER], |
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dnl action if the text is found, this it has not been replaced by the |
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dnl cpp |
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ICC="no" |
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AC_MSG_RESULT([no]), |
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dnl the text was not found, it was replaced by the cpp |
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ICC="yes" |
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AC_MSG_RESULT([yes]) |
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) |
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if test "$ICC" = "yes"; then |
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dnl this is icc, not gcc. |
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dnl ICC warnings we ignore: |
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dnl * 279 warns on static conditions in while expressions |
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dnl * 269 warns on our "%Od" printf formatters for curl_off_t output: |
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dnl "invalid format string conversion" |
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WARN="-wd279,269" |
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if test "$gccnum" -gt "600"; then |
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dnl icc 6.0 and older doesn't have the -Wall flag |
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WARN="-Wall $WARN" |
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fi |
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else dnl $ICC = yes |
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dnl |
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WARN="-W -Wall -Wwrite-strings -pedantic -Wno-long-long -Wundef -Wpointer-arith -Wnested-externs -Winline -Wmissing-declarations -Wmissing-prototypes -Wsign-compare" |
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dnl -Wcast-align is a bit too annoying ;-) |
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if test "$gccnum" -ge "296"; then |
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dnl gcc 2.96 or later |
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WARN="$WARN -Wfloat-equal" |
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if test "$gccnum" -gt "296"; then |
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dnl this option does not exist in 2.96 |
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WARN="$WARN -Wno-format-nonliteral" |
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fi |
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dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on |
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dnl on i686-Linux as it gives us heaps with false positives |
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if test "$gccnum" -ge "303"; then |
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dnl gcc 3.3 and later |
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WARN="$WARN -Wendif-labels -Wstrict-prototypes" |
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fi |
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fi |
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for flag in $CPPFLAGS; do |
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case "$flag" in |
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-I*) |
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dnl include path |
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add=`echo $flag | sed 's/^-I/-isystem /g'` |
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WARN="$WARN $add" |
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;; |
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esac |
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done |
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fi dnl $ICC = no |
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CFLAGS="$CFLAGS $WARN" |
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fi dnl $GCC = yes |
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dnl strip off optimizer flags |
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NEWFLAGS="" |
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for flag in $CFLAGS; do |
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case "$flag" in |
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-O*) |
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dnl echo "cut off $flag" |
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;; |
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*) |
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NEWFLAGS="$NEWFLAGS $flag" |
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;; |
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esac |
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done |
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CFLAGS=$NEWFLAGS |
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]) dnl end of AC_DEFUN() |
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