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Diffstat (limited to '')
| -rw-r--r-- | configure.ac | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index c576d224..d4a51ffd 100644 --- a/configure.ac +++ b/configure.ac @@ -380,6 +380,30 @@ AC_MSG_RESULT([$enable_threads]) # We use the actual result a little later. +######################### +# Assumed amount of RAM # +######################### + +# We use 32 MiB as default, because it should be small enough for most +# cases and allows decompressing files compressed with the default settings. +# Probably it is too small for most systems, but it's safer to guess too low. +AC_MSG_CHECKING([how much RAM to assume if the real amount is unknown]) +AC_ARG_ENABLE([assume-ram], AC_HELP_STRING([--enable-assume-ram=SIZE], + [If and only if the real amount of RAM cannot be determined, + assume SIZE MiB. The default is 32 MiB. This affects the + default memory usage limit.]), + [], [enable_assume_ram=32]) +assume_ram_check=`echo "$enable_assume_ram" | tr -d 0123456789` +if test -z "$enable_assume_ram" || test -n "$assume_ram_check"; then + AC_MSG_RESULT([]) + AC_MSG_ERROR([--enable-assume-ram accepts only an integer argument]) +fi +AC_MSG_RESULT([$enable_assume_ram MiB]) +AC_DEFINE_UNQUOTED([ASSUME_RAM], [$enable_assume_ram], + [How many MiB of RAM to assume if the real amount cannot + be determined.]) + + ############################################ # xz/xzdec/lzmadec linkage against liblzma # ############################################ |