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authorLasse Collin <lasse.collin@tukaani.org>2008-01-06 16:27:41 +0200
committerLasse Collin <lasse.collin@tukaani.org>2008-01-06 16:27:41 +0200
commit4e7e54c4c522ab2f6a7abb92cefc4f707e9568fb (patch)
tree852cde1e5bef3e46c5415884e283ef874f8eed73 /configure.ac
parentFix typo in comment (INT64_MAX -> UINT64_MAX). (diff)
downloadxz-4e7e54c4c522ab2f6a7abb92cefc4f707e9568fb.tar.xz
Introduced compatibility with systems that have pre-C99
or no inttypes.h. This is useful when the compiler has good enough support for C99, but libc headers don't. Changed liblzma API so that sys/types.h and inttypes.h have to be #included before #including lzma.h. On systems that don't have C99 inttypes.h, it's the problem of the applications to provide the required types and macros before #including lzma.h. If lzma.h defined the missing types and macros, it could conflict with third-party applications whose configure has detected that the types are missing and defined them in config.h already. An alternative would have been introducing lzma_uint32 and similar types, but that would just be an extra pain on modern systems.
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac13
1 files changed, 12 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index e0b394a5..514408e8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -392,10 +392,21 @@ AC_CHECK_HEADERS([assert.h errno.h byteswap.h sys/param.h sys/sysctl.h],
# Checks for typedefs, structures, and compiler characteristics.
###############################################################################
-AC_HEADER_STDBOOL
AC_C_INLINE
AC_C_RESTRICT
+AC_HEADER_STDBOOL
+
+AC_TYPE_UINT8_T
+AC_TYPE_INT32_T
+AC_TYPE_UINT32_T
+AC_TYPE_INT64_T
+AC_TYPE_UINT64_T
+AC_TYPE_UINTPTR_T
+
+AC_CHECK_SIZEOF([unsigned long])
+AC_CHECK_SIZEOF([size_t])
+
# The command line tool can copy high resolution timestamps if such
# information is availabe in struct stat. Otherwise one second accuracy
# is used. Most systems seem to have st_xtim but BSDs have st_xtimespec.