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Add -Wall only if $CC and $CXX pass test

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This commit is contained in:
slamm%netscape.com 1999-02-12 02:22:25 +00:00
parent f77b185a7c
commit 12484a3b24
1 changed files with 17 additions and 2 deletions
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19
configure.in
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@ -416,7 +416,7 @@ fi
rm -f include-test-*.h
CFLAGS=$_SAVE_CFLAGS
dnl Check cc for -Wall flag support (adds compiler warnings)
dnl Check cc and cxx for -Wall flag support (adds compiler warnings)
AC_MSG_CHECKING($CC for \"-Wall\" support)
_SAVE_CFLAGS=$CFLAGS ; CFLAGS="$CFLAGS -Wall"
AC_CACHE_VAL(ac_cv_cc_wall_flag,
@ -426,10 +426,25 @@ AC_CACHE_VAL(ac_cv_cc_wall_flag,
[ac_cv_cc_wall_flag=false])])
if test $ac_cv_cc_wall_flag = true ; then
AC_MSG_RESULT(yes)
WARNINGS_CFLAGS="${WARNINGS_CFLAGS} -Wall"
else
AC_MSG_RESULT(no)
fi
_SAVE_CC=$CC ; CC=$CXX
AC_MSG_CHECKING($CXX for \"-Wall\" support)
AC_CACHE_VAL(ac_cv_cxx_wall_flag,
[AC_TRY_COMPILE([],
[int i;],
[ac_cv_cxx_wall_flag=true],
[ac_cv_cxx_wall_flag=false])])
if test $ac_cv_cxx_wall_flag = true ; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
if test $ac_cv_cc_wall_flag = true -a $ac_cv_cxx_wall_flag = true ; then
WARNINGS_CFLAGS="${WARNINGS_CFLAGS} -Wall"
fi
CC=$_SAVE_CC
CFLAGS=$_SAVE_CFLAGS
dnl Check cc for -pedantic flag support (adds compiler warnings)