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dnl Checks for required headers and functions
dnl
dnl Version: 20220529
dnl Function to detect if libcaes dependencies are available
AC_DEFUN([AX_LIBCAES_CHECK_LOCAL],
[dnl Check for libcrypto (openssl) support
AX_LIBCRYPTO_CHECK_ENABLE
AS_IF(
[test "x$ac_cv_libcrypto" != xno],
[AX_LIBCRYPTO_CHECK_AES
AX_LIBCRYPTO_CHECK_AES_XTS])
dnl Fallback to local versions if necessary
AS_IF(
[test "x$ac_cv_libcrypto" = xno || test "x$ac_cv_libcrypto_aes_cbc" = xno],
[ac_cv_libcaes_aes_cbc=local],
[ac_cv_libcaes_aes_cbc=$ac_cv_libcrypto_aes_cbc])
AS_IF(
[test "x$ac_cv_libcrypto" = xno || test "x$ac_cv_libcrypto_aes_ecb" = xno],
[ac_cv_libcaes_aes_ecb=local],
[ac_cv_libcaes_aes_ecb=$ac_cv_libcrypto_aes_ecb])
AS_IF(
[test "x$ac_cv_libcrypto" = xno || test "x$ac_cv_libcrypto_aes_xts" = xno],
[ac_cv_libcaes_aes_xts=local],
[ac_cv_libcaes_aes_xts=$ac_cv_libcrypto_aes_xts])
])
dnl Function to check if DLL support is needed
AC_DEFUN([AX_LIBCAES_CHECK_DLL_SUPPORT],
[AS_IF(
[test "x$enable_shared" = xyes],
[AS_CASE(
[$host],
[*cygwin* | *mingw* | *msys*],
[AC_DEFINE(
[HAVE_DLLMAIN],
[1],
[Define to 1 to enable the DllMain function.])
AC_SUBST(
[HAVE_DLLMAIN],
[1])
AC_SUBST(
[LIBCAES_DLL_EXPORT],
["-DLIBCAES_DLL_EXPORT"])
AC_SUBST(
[LIBCAES_DLL_IMPORT],
["-DLIBCAES_DLL_IMPORT"])
])
])
])
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