From 624cc771da4ac5f15ec16a2b0f10feeef0b125c7 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Thu, 21 Sep 2000 02:04:51 +0000 Subject: More portable handling of loop header files, as done in util-linux --- libbb/mk_loop_h.sh | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100755 libbb/mk_loop_h.sh (limited to 'libbb/mk_loop_h.sh') diff --git a/libbb/mk_loop_h.sh b/libbb/mk_loop_h.sh new file mode 100755 index 000000000..c33c010ca --- /dev/null +++ b/libbb/mk_loop_h.sh @@ -0,0 +1,34 @@ +#!/bin/sh +# +# Figure out (i) the type of dev_t (ii) the defines for loop stuff +# + +rm -f loop.h + +# Since 1.3.79 there is an include file +# that defines __kernel_dev_t. +# (The file itself appeared in 1.3.78, but there it defined __dev_t.) +# If it exists, we use it, or, rather, which +# avoids namespace pollution. Otherwise we guess that __kernel_dev_t +# is an unsigned short (which is true on i386, but false on alpha). + +if [ -f /usr/include/linux/posix_types.h ]; then + echo '#include ' >> loop.h + echo '#undef dev_t' >> loop.h + echo '#define dev_t __kernel_dev_t' >> loop.h +else + echo '#undef dev_t' >> loop.h + echo '#define dev_t unsigned short' >> loop.h +fi + +# Next we have to find the loop stuff itself. +# First try kernel source, then a private version. + +if [ -f /usr/include/linux/loop.h ]; then + echo '#include ' >> loop.h +else + echo '#include "real_loop.h"' >> loop.h +fi + +echo '#undef dev_t' >> loop.h + -- cgit v1.2.3