-dnl
-dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
-dnl to use an existing library implementation to save on code size.
-dnl
-
-if test x"$wget_need_md5" = xyes
-then
- dnl This should be moved to an AC_DEFUN, but I'm not sure how to
- dnl manipulate MD5_OBJ from the defun.
-
- AC_LIBOBJ([gen-md5])
- found_md5=no
-
- dnl Check for the system MD5 library on Solaris. We don't check for
- dnl something simple like "MD5Update" because there are a number of
- dnl MD5 implementations that use that name, but have an otherwise
- dnl incompatible interface. md5_calc is, hopefully, specific to the
- dnl Solaris MD5 library.
- if test x"$found_md5" = xno; then
- AC_CHECK_LIB(md5, md5_calc, [
- dnl Some installations have bogus <md5.h> in the compiler's
- dnl include path, making the system md5 library useless.
- AC_MSG_CHECKING([for working md5.h])
- AC_COMPILE_IFELSE([#include <md5.h>
- ], [
- AC_MSG_RESULT(yes)
- AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
- LIBS="-lmd5 $LIBS"
- found_md5=yes
- AC_MSG_NOTICE([using the Solaris MD5 implementation])
- ], [AC_MSG_RESULT(no)])
- ])
- fi
-
- dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
- dnl implementation.
- if test x"$found_md5" = xno; then
- if test x"$LIBSSL" != x; then
- AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
- found_md5=yes
- AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
- fi
- fi
-
- dnl If none of the above worked, use the one we ship with Wget.
- if test x"$found_md5" = xno; then
- AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
- found_md5=yes
- AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
- AC_C_BIGENDIAN
-
- AC_SUBST(MD5_CPPFLAGS, '-I $(top_srcdir)/md5')
- AC_SUBST(MD5_LDADD, '../md5/libmd5.a')
- AC_SUBST(MD5_SUBDIR, md5)
- md5_INIT
- fi
- AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
-fi
-