add support for checking sizes of different types through configure and dynamically generating include/FLAC/ordinals.h
diff --git a/configure.in b/configure.in
index af6dcb8..d07f0d4 100644
--- a/configure.in
+++ b/configure.in
@@ -73,6 +73,56 @@
AC_DEFINE(FLAC__HAS_NASM)
fi
+dnl Check for type sizes
+
+AC_CHECK_SIZEOF(short)
+AC_CHECK_SIZEOF(int)
+AC_CHECK_SIZEOF(long)
+AC_CHECK_SIZEOF(long long)
+
+case 2 in
+ $ac_cv_sizeof_short) FLaC__SIZE16="short" ; FLaC__USIZE16="unsigned short";;
+ $ac_cv_sizeof_int) FLaC__SIZE16="int" ; FLaC__USIZE16="unsigned int";;
+esac
+
+case 4 in
+ $ac_cv_sizeof_short) FLaC__SIZE32="short" ; FLaC__USIZE32="unsigned short";;
+ $ac_cv_sizeof_int) FLaC__SIZE32="int" ; FLaC__USIZE32="unsigned int";;
+ $ac_cv_sizeof_long) FLaC__SIZE32="long" ; FLaC__USIZE32="unsigned long";;
+esac
+
+case 8 in
+ $ac_cv_sizeof_int) FLaC__SIZE64="int" ; FLaC__USIZE64="unsigned int";;
+ $ac_cv_sizeof_long) FLaC__SIZE64="long" ; FLaC__USIZE64="unsigned long";;
+ $ac_cv_sizeof_long_long) FLaC__SIZE64="long long" ; FLaC__USIZE64="unsigned long long";;
+esac
+
+if test -z "$FLaC__SIZE16"; then
+ AC_MSG_ERROR(No 16 bit type found on this platform!)
+fi
+if test -z "$FLaC__USIZE16"; then
+ AC_MSG_ERROR(No unsigned 16 bit type found on this platform!)
+fi
+if test -z "$FLaC__SIZE32"; then
+ AC_MSG_ERROR(No 32 bit type found on this platform!)
+fi
+if test -z "$FLaC__USIZE32"; then
+ AC_MSG_ERROR(No unsigned 32 bit type found on this platform!)
+fi
+if test -z "$FLaC__SIZE64"; then
+ AC_MSG_WARN(No 64 bit type found on this platform!)
+fi
+if test -z "$FLaC__USIZE64"; then
+ AC_MSG_ERROR(No unsigned 64 bit type found on this platform!)
+fi
+
+AC_SUBST(FLaC__SIZE16)
+AC_SUBST(FLaC__USIZE16)
+AC_SUBST(FLaC__SIZE32)
+AC_SUBST(FLaC__USIZE32)
+AC_SUBST(FLaC__SIZE64)
+AC_SUBST(FLaC__USIZE64)
+
CFLAGS='-I./include -I $(top_srcdir)/include -Wall -W'
if test x$debug = xtrue; then
CFLAGS="$CFLAGS -g -O0 -DDEBUG"
@@ -94,5 +144,6 @@
src/test_unit/Makefile \
include/Makefile \
include/FLAC/Makefile \
+ include/FLAC/ordinals.h \
test/Makefile \
)