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autoconf: Added the -Wunused-but-set-variable to the default compile to help avoid commiting more unused variable but set value. Please report if you do have problem with it.

This commit is contained in:
Marc Olivier Chouinard 2011-04-22 21:45:42 -04:00
parent e13821c243
commit f952719e89
1 changed files with 11 additions and 0 deletions
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11
configure.in
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@ -583,6 +583,17 @@ if test x"$ac_cv_gcc_declaration_after_statement" = xyes; then
fi
CFLAGS="$saved_CFLAGS"
saved_CFLAGS="$CFLAGS"
AC_CACHE_CHECK([whether compiler supports -Wunused-but-set-variable], [ac_cv_gcc_unused_but_set_variable], [
CFLAGS="$CFLAGS -Wunused-but-set-variable"
AC_TRY_COMPILE([],[return 0;],[ac_cv_gcc_unused_but_set_variable=yes],[ac_cv_gcc_unused_but_set_variable=no])
])
AC_MSG_RESULT($ac_cv_gcc_unused_but_set_variable)
if test x"$ac_cv_gcc_unused_but_set_variable" = xyes; then
APR_ADDTO(SWITCH_ANSI_CFLAGS, -Wunused-but-set-variable)
fi
CFLAGS="$saved_CFLAGS"
AC_C_BIGENDIAN(AC_DEFINE([SWITCH_BYTE_ORDER],__BIG_ENDIAN,[Big Endian]),AC_DEFINE([SWITCH_BYTE_ORDER],__LITTLE_ENDIAN,[Little Endian]))
# Checks for integer size