dnl CHECK COMMAND LINE OPTIONS
dnl --------------------------
-dnl Do you want to debug nmh?
-AC_ARG_ENABLE([debug],
- AS_HELP_STRING([--enable-debug],[enable nmh code debugging]))
-
dnl Do you want client-side support for using SASL for authentication?
dnl Note that this code will be enabled for both POP and SMTP
AC_ARG_WITH([cyrus-sasl], AS_HELP_STRING([--with-cyrus-sasl],
[Enable SASL support via the Cyrus SASL library]))
-AS_IF([test x"$with_cyrus_sasl" != x -a x"$with_cyrus_sasl" != x"no"],[
- AC_DEFINE([CYRUS_SASL], [1],
- [Define to use the Cyrus SASL library for authentication of POP and SMTP.])dnl
- AS_IF([test x"$with_cyrus_sasl" != xyes],[
- AC_MSG_WARN([Arguments to --with-cyrus-sasl now ignored])
- AC_MSG_WARN([Please pass the appropriate arguments to CPPFLAGS/LDFLAGS])])
- sasl_support=yes], [sasl_support=no])
+AS_IF([test x"$with_cyrus_sasl" != x -a x"$with_cyrus_sasl" != xyes -a \
+ x"$with_cyrus_sasl" != xno],[
+ AC_MSG_WARN([Arguments to --with-cyrus-sasl now ignored])
+ AC_MSG_WARN([Please pass the appropriate arguments to CPPFLAGS/LDFLAGS])])
+
+dnl Do you want client-side support for encryption with TLS?
+AC_ARG_WITH([tls], AS_HELP_STRING([--with-tls], [Enable TLS support]))
dnl Do you want client-side support for using OAuth2 for SMTP authentication?
AC_ARG_WITH([oauth], AS_HELP_STRING([--with-oauth],
[Enable OAuth2 support in SMTP auth]))
-dnl Do you want client-side support for encryption with TLS?
-AC_ARG_WITH([tls], AS_HELP_STRING([--with-tls], [Enable TLS support]))
-AS_IF([test x"$with_tls" != x"no"],[
- AC_DEFINE([TLS_SUPPORT], [1], [Support TLS for session encryption.])dnl
- tls_support=yes],[tls_support=no])
-
dnl Set the backup prefix
AC_ARG_WITH([hash-backup],
AS_HELP_STRING([--with-hash-backup],[use # as the backup prefix (default: ,)]))
dnl ------------------
AC_HEADER_TIOCGWINSZ
-AC_CHECK_HEADERS([fcntl.h wchar.h wctype.h sys/param.h sys/time.h sys/stream.h])
+AC_CHECK_HEADERS([fcntl.h stdbool.h wchar.h wctype.h \
+ sys/param.h sys/time.h sys/stream.h])
AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM,1,
[Define to 1 if `struct winsize' requires <sys/ptem.h>.]),,
dnl ---------------
AC_CHECK_FUNCS([wcwidth mbtowc getutxent arc4random mkstemps])
+dnl Use custom getline for platforms that don't have it.
+AC_CONFIG_LIBOBJ_DIR([sbr])
+AC_REPLACE_FUNCS([getline])
+
dnl -----------------------
dnl CHECK MULTIBYTE SUPPORT
dnl -----------------------
dnl better to use an autoconf test, except -v will probably succeed
dnl with many other compilers but have different meaning.
AS_CASE([`${CC} -V 2>&1`],
- [cc:\ Sun\ C*], [AM_CFLAGS=\
-"${AM_CFLAGS:+$AM_CFLAGS }-v -errtags=yes -erroff=E_STATEMENT_NOT_REACHED"])
+ [cc:*\ Sun\ C*], [CFLAGS=\
+"${CFLAGS:+$CFLAGS }-v -errtags=yes -erroff=E_STATEMENT_NOT_REACHED"])
fi
AC_CACHE_CHECK([whether compiler supports -Wall], [nmh_cv_has_wall],
CFLAGS="$AM_CFLAGS $CFLAGS -Wall -Werror"
AC_TRY_COMPILE([],[],nmh_cv_has_wall=yes,nmh_cv_has_wall=no)
CFLAGS="$nmh_saved_cflags"])
-test "$nmh_cv_has_wall" = "yes" && AM_CFLAGS="${AM_CFLAGS:+$AM_CFLAGS }-Wall"
+test "$nmh_cv_has_wall" = "yes" && CFLAGS="${CFLAGS:+$CFLAGS }-Wall"
AC_CACHE_CHECK([whether compiler supports -Wextra], [nmh_cv_has_wextra],
[nmh_saved_cflags="$CFLAGS"
AC_TRY_COMPILE([],[],nmh_cv_has_wextra=yes,
nmh_cv_has_wextra=no)
CFLAGS="$nmh_saved_cflags"])
-test "$nmh_cv_has_wextra" = "yes" && AM_CFLAGS="${AM_CFLAGS:+$AM_CFLAGS }-Wextra"
+test "$nmh_cv_has_wextra" = "yes" && CFLAGS="${CFLAGS:+$CFLAGS }-Wextra"
AC_SUBST([AM_CFLAGS])
dnl If the user configures with a CFLAGS that contains a -O flag
dnl but then removes it a make time, they'll also have to remove
dnl -D_FORTIFY_SOURCE from AM_CPPFLAGS because it requires optimization.
+ dnl Use "\ " instead of ' ' or " " for compatiblity with posh.
AS_CASE([$CFLAGS],
- [-O*|*' -O'*],[AM_CPPFLAGS="${AM_CPPFLAGS:+$AM_CPPFLAGS }-D_FORTIFY_SOURCE=2"])
+ [-O|*\ -O|-O[[!0]]*|*\ -O[[!0]]*],
+ [AM_CPPFLAGS="${AM_CPPFLAGS:+$AM_CPPFLAGS }-D_FORTIFY_SOURCE=2"])
fi
dnl FreeBSD needs a bit of magic to bring getline() into scope.
[AS_IF([test "$GCC" = yes && `${CC} --version 2>&1 | \
grep clang >/dev/null`],
[nmh_saved_ldflags="$LDFLAGS"
- LDFLAGS="$LDFLAGS -Qunused-arguments"
+ LDFLAGS="$AM_LDFLAGS $LDFLAGS -Qunused-arguments"
AC_TRY_LINK([],[],nmh_cv_has_q_unused_arguments=yes,
nmh_cv_has_q_unused_arguments=no)
LDFLAGS="$nmh_saved_ldflags"],
[nmh_cv_has_q_unused_arguments=no])])
test "$nmh_cv_has_q_unused_arguments" = "yes" && \
- LDFLAGS="${LDFLAGS:+$LDFLAGS }-Qunused-arguments"
+ AM_LDFLAGS="${AM_LDFLAGS:+$AM_LDFLAGS }-Qunused-arguments"
dnl This hack turns off assertions by default, assuming
dnl that configure still uses this shell variable. Without
dnl CHECK FOR CYRUS-SASL
dnl --------------------
-AS_IF([test x"$sasl_support" = x"yes"],[
- AC_CHECK_HEADER([sasl/sasl.h], , [AC_MSG_ERROR([sasl.h not found])])
- AC_CHECK_LIB([sasl2], [sasl_client_new], [SASLLIB="-lsasl2"],
- [AC_MSG_ERROR([Cyrus SASL library not found])])],[SASLLIB=""])
+AS_IF([test x"$with_cyrus_sasl" != x"no"],[
+ AC_CHECK_HEADER([sasl/sasl.h], HAVE_SASL_H=1)
+ AC_CHECK_LIB([sasl2], [sasl_client_new], [SASLLIB="-lsasl2"])])
AC_SUBST([SASLLIB])
+dnl -----------------
+dnl Enable SASL?
+dnl -----------------
+dnl By default (with_cyrus_sasl=''), enable SASL if header and lib are found.
+dnl If SASL requested (--with-sasl with_cyrus_sasl=yes), error if header or lib not found.
+dnl If SASL disabled (--without-sasl with_cyrus_sasl=no), don't enable it.
+sasl_support=no
+CYRUS_SASL=0
+AC_SUBST([CYRUS_SASL])
+AS_IF([test "x$with_cyrus_sasl" = xyes && test "x$HAVE_SASL_H" = x],
+ [AC_MSG_ERROR([SASL requested but sasl.h not found])],
+ [test "x$with_cyrus_sasl" = xyes && test "x$SASLLIB" = x],
+ [AC_MSG_ERROR([SASL requested but Cyrus SASL library not found])],
+ [test "x$with_cyrus_sasl" != xno && test "x$HAVE_SASL_H" = x1 &&
+ test "x$SASLLIB" != x],
+ [AC_DEFINE([CYRUS_SASL], [1],
+ [Define to use the Cyrus SASL library for authentication of POP and SMTP.])
+ CYRUS_SASL=1
+ sasl_support=yes])
+
dnl -----------------
dnl CHECK FOR OPENSSL
dnl -----------------
-AS_IF([test x"$tls_support" = x"yes"],[
- dnl OpenBSD 5 needs the other-libraries (fourth argument) to the
- dnl AC_CHECK_LIB for SSL_library_init, because it doesn't
+AS_IF([test x"$with_tls" != x"no"],[
+ dnl OpenBSD 5 needs the other-libraries (fifth argument) to the
+ dnl AC_CHECK_LIB for SSL_new, because it doesn't
dnl automatically append -lcrypto when linking with -lssl.
- AC_CHECK_HEADER([openssl/ssl.h], , [AC_MSG_ERROR([openssl/ssl.h not found])])
- AC_CHECK_LIB([crypto], [BIO_write], [TLSLIB="-lcrypto"],
- [AC_MSG_ERROR([OpenSSL crypto library not found])])
- AC_CHECK_LIB([ssl], [SSL_library_init], [TLSLIB="-lssl $TLSLIB"],
- [AC_MSG_ERROR([OpenSSL library not found])],[$TLSLIB])],
- [TLSLIB=])
+ AC_CHECK_HEADER([openssl/ssl.h], HAVE_SSL_H=1)
+ AC_CHECK_LIB([crypto], [BIO_write], [TLSLIB="-lcrypto"])
+ AC_CHECK_LIB([ssl], [SSL_new], [TLSLIB="-lssl $TLSLIB"], [TLSLIB=],
+ [$TLSLIB])])
AC_SUBST([TLSLIB])
+dnl -----------------
+dnl Enable TLS?
+dnl -----------------
+dnl By default (with_tls=''), enable TLS if header and libs were found.
+dnl If TLS requested (--with-tls with_tls=yes), error if header/lib not found.
+dnl If TLS disabled (--without-tls with_tls=no), don't enable it.
+tls_support=no
+TLS_SUPPORT=0
+AC_SUBST([TLS_SUPPORT])
+AS_IF([test "x$with_tls" = xyes && test "x$HAVE_SSL_H" = x],
+ [AC_MSG_ERROR([TLS requested but openssl/ssl.h not found])],
+ [test "x$with_tls" = xyes && test "x$TLSLIB" = x],
+ [AC_MSG_ERROR([TLS requested but crypto or ssl library not found])],
+ [test "x$with_tls" != xno && test "x$HAVE_SSL_H" = x1 && test "x$TLSLIB" != x],
+ [AC_DEFINE([TLS_SUPPORT], [1], [Support TLS for session encryption.])
+ TLS_SUPPORT=1
+ tls_support=yes
+ save_LIBS="$LIBS"
+ LIBS="$LIBS $TLSLIB"
+ AC_CHECK_FUNCS([X509_VERIFY_PARAM_set1_host])
+ LIBS="$save_LIBS"])
+
dnl -----------------
dnl CHECK FOR CURL
dnl -----------------
dnl ----------------
dnl CHECK FLEX FIXUP
dnl ----------------
+dnl BUG: This stops $(LFLAGS) working as it comes after $(AM_FLAGS).
dnl Use AM_LFLAGS make variable setting to work around bugs in flex
dnl 2.5.36-37 that cause signed/unsigned mismatch,
dnl http://sourceforge.net/p/flex/bugs/140/
+dnl 2.6.1 bug: https://github.com/westes/flex/issues/97
AS_IF([test "$LEX" = flex],
[AS_CASE([`$LEX -V`],
[flex\ 2.5.35], [AM_LFLAGS=\
'; sed "s/ int n;/ size_t n;/" $@ >$@.tmp && mv -f $@.tmp $@'],
[flex\ 2.5.3[[67]]], [AM_LFLAGS=\
-'; sed "s/\( \)int i;/\1yy_size_t i;/" $@ >$@.tmp && mv -f $@.tmp $@'])
+'; sed "s/\( \)int i;/\1yy_size_t i;/" $@ >$@.tmp && mv -f $@.tmp $@'],
+ [flex\ 2.6.1], [AM_LFLAGS=\
+'; sed '\''/\<int num_to_read\>/s/int/size_t/; s/\<yy_size_t i\>/int i/'\'' $@ >$@.tmp && mv -f $@.tmp $@'])
AC_SUBST([AM_LFLAGS])])
dnl ------------------
dnl CHECK STRUCTURES
dnl ----------------
+dnl FIXME: This test could work on Linux if _BSD_SOURCE was #define'd
+dnl according to localtime(3).
+dnl
dnl For platforms such as FreeBSD that have tm_gmtoff in struct tm.
dnl (FreeBSD has a timezone() function but not a timezone global
dnl variable that is visible).
host os : ${host}
compiler : ${CC}
compiler flags : ${AM_CFLAGS} ${CFLAGS}
-linker flags : ${LDFLAGS}
+linker flags : ${AM_LDFLAGS} ${LDFLAGS}
preprocessor flags : ${AM_CPPFLAGS} ${CPPFLAGS}
source code location : ${srcdir}
binary install path : ${nmhbin}