- introduced common/jpeg/{configure.ac,Makefile.am}
- removed autogenerated stuff (jconfig.h, configure, config.guess, config.sub, jconfig.h, install-sh)
- minor macros changes in jchuff.c, jcphuff.c, jmorecfg.h (same with configure produced macros)
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/branches/1.5-xserver@2455 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/jpeg/configure.ac b/common/jpeg/configure.ac
new file mode 100644
index 0000000..28d8638
--- /dev/null
+++ b/common/jpeg/configure.ac
@@ -0,0 +1,79 @@
+# -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.61])
+AC_INIT([libjpeg], [6.b])
+
+AM_INIT_AUTOMAKE([-Wall foreign dist-bzip2])
+
+# Always build with prototypes
+AC_DEFINE([HAVE_PROTOTYPES], 1, [Define if your compiler supports prototypes])
+# Don't use undefined types
+AC_DEFINE([INCOMPLETE_TYPES_BROKEN], 1, [Define if you want use complete types])
+
+# Checks for programs.
+AC_PROG_CC
+AC_PROG_INSTALL
+AC_PROG_LIBTOOL
+AC_PROG_LN_S
+
+# Checks for libraries.
+
+# Checks for header files.
+AC_HEADER_STDC
+AC_CHECK_HEADERS([stddef.h stdlib.h string.h])
+AC_CHECK_HEADER([sys/types.h], AC_DEFINE([NEED_SYS_TYPES_H], 1, [Define if you have sys/types.h]))
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_CONST
+AC_C_CHAR_UNSIGNED
+AC_C_INLINE
+AC_TYPE_SIZE_T
+AC_CHECK_TYPES([unsigned char, unsigned short])
+
+AC_MSG_CHECKING([if right shift is signed])
+AC_TRY_RUN(
+ [#include <stdio.h>
+ int is_shifting_signed (long arg) {
+ long res = arg >> 4;
+
+ if (res == -0x7F7E80CL)
+ return 1; /* right shift is signed */
+
+ /* see if unsigned-shift hack will fix it. */
+ /* we can't just test exact value since it depends on width of long... */
+ res |= (~0L) << (32-4);
+ if (res == -0x7F7E80CL)
+ return 0; /* right shift is unsigned */
+
+ printf("Right shift isn't acting as I expect it to.\n");
+ printf("I fear the JPEG software will not work at all.\n\n");
+ return 0; /* try it with unsigned anyway */
+ }
+ int main (void) {
+ exit(is_shifting_signed(-0x7F7E80B1L));
+ }],
+ [AC_MSG_RESULT(no)
+ AC_DEFINE([RIGHT_SHIFT_IS_UNSIGNED], 1, [Define if shift is unsigned])],
+ [AC_MSG_RESULT(yes)],
+ [AC_MSG_RESULT(Assuming that right shift is signed on target machine.)])
+
+# test whether global names are unique to at least 15 chars
+AC_MSG_CHECKING([for short external names])
+AC_TRY_LINK(
+ [int possibly_duplicate_function () { return 0; }
+ int possibly_dupli_function () { return 1; }], [ ],
+ [AC_MSG_RESULT(ok)],
+ [AC_MSG_RESULT(short)
+ AC_DEFINE([NEED_SHORT_EXTERNAL_NAMES], 1, [Define if you need short function names])])
+
+# Checks for library functions.
+AC_FUNC_MALLOC
+AC_CHECK_FUNCS([memset memcpy], [],
+ [AC_DEFINE([NEED_BSD_STRINGS], 1,
+ [Define if you have BSD-like bzero and bcopy])])
+
+
+AC_CONFIG_HEADER([jconfig.h:config.h.in])
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT