Mercurial > urweb
view m4/ax_check_openssl.m4 @ 1739:c414850f206f
Add support for -boot flag, which allows in-tree execution of Ur/Web
The boot flag rewrites most hardcoded paths to point to the build
directory, and also forces static compilation. This is convenient
for developing Ur/Web, or if you cannot 'sudo make install' Ur/Web.
The following changes were made:
* Header files were moved to include/urweb instead of include;
this lets FFI users point their C_INCLUDE_PATH at this directory
at write <urweb/urweb.h>. For internal Ur/Web executables,
we simply pass -I$PATH/include/urweb as normal.
* Differentiate between LIB and SRCLIB; SRCLIB is Ur and JavaScript
source files, while LIB is compiled products from libtool. For
in-tree compilation these live in different places.
* No longer reference Config for paths; instead use Settings; these
settings can be changed dynamically by Compiler.enableBoot ()
(TODO: add a disableBoot function.)
* config.h is now generated directly in include/urweb/config.h,
for consistency's sake (especially since it gets installed
along with the rest of the headers!)
* All of the autotools build products got updated.
* The linkStatic field in protocols now only contains the name of the
build product, and not the absolute path.
Future users have to be careful not to reference the Settings files
to early, lest they get an old version (this was the source of two
bugs during development of this patch.)
author | Edward Z. Yang <ezyang@mit.edu> |
---|---|
date | Wed, 02 May 2012 17:17:57 -0400 |
parents | df8f18d50746 |
children |
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# =========================================================================== # http://www.gnu.org/software/autoconf-archive/ax_check_openssl.html # =========================================================================== # # SYNOPSIS # # AX_CHECK_OPENSSL([action-if-found[, action-if-not-found]]) # # DESCRIPTION # # Look for OpenSSL in a number of default spots, or in a user-selected # spot (via --with-openssl). Sets # # OPENSSL_INCLUDES to the include directives required # OPENSSL_LIBS to the -l directives required # OPENSSL_LDFLAGS to the -L or -R flags required # # and calls ACTION-IF-FOUND or ACTION-IF-NOT-FOUND appropriately # # This macro sets OPENSSL_INCLUDES such that source files should use the # openssl/ directory in include directives: # # #include <openssl/hmac.h> # # LICENSE # # Copyright (c) 2009,2010 Zmanda Inc. <http://www.zmanda.com/> # Copyright (c) 2009,2010 Dustin J. Mitchell <dustin@zmanda.com> # # Copying and distribution of this file, with or without modification, are # permitted in any medium without royalty provided the copyright notice # and this notice are preserved. This file is offered as-is, without any # warranty. #serial 7 AU_ALIAS([CHECK_SSL], [AX_CHECK_OPENSSL]) AC_DEFUN([AX_CHECK_OPENSSL], [ found=false AC_ARG_WITH(openssl, AS_HELP_STRING([--with-openssl=DIR], [root of the OpenSSL directory]), [ case "$withval" in "" | y | ye | yes | n | no) AC_MSG_ERROR([Invalid --with-openssl value]) ;; *) ssldirs="$withval" ;; esac ], [ # if pkg-config is installed and openssl has installed a .pc file, # then use that information and don't search ssldirs AC_PATH_PROG(PKG_CONFIG, pkg-config) if test x"$PKG_CONFIG" != x""; then OPENSSL_LDFLAGS=`$PKG_CONFIG openssl --libs-only-L 2>/dev/null` if test $? = 0; then OPENSSL_LIBS=`$PKG_CONFIG openssl --libs-only-l 2>/dev/null` OPENSSL_INCLUDES=`$PKG_CONFIG openssl --cflags-only-I 2>/dev/null` found=true fi fi # no such luck; use some default ssldirs if ! $found; then ssldirs="/usr/local/ssl /usr/lib/ssl /usr/ssl /usr/pkg /usr/local /usr" fi ] ) # note that we #include <openssl/foo.h>, so the OpenSSL headers have to be in # an 'openssl' subdirectory if ! $found; then OPENSSL_INCLUDES= for ssldir in $ssldirs; do AC_MSG_CHECKING([for openssl/ssl.h in $ssldir]) if test -f "$ssldir/include/openssl/ssl.h"; then OPENSSL_INCLUDES="-I$ssldir/include" OPENSSL_LDFLAGS="-L$ssldir/lib" OPENSSL_LIBS="-lssl -lcrypto" found=true AC_MSG_RESULT([yes]) break else AC_MSG_RESULT([no]) fi done # if the file wasn't found, well, go ahead and try the link anyway -- maybe # it will just work! fi # try the preprocessor and linker with our new flags, # being careful not to pollute the global LIBS, LDFLAGS, and CPPFLAGS AC_MSG_CHECKING([whether compiling and linking against OpenSSL works]) echo "Trying link with OPENSSL_LDFLAGS=$OPENSSL_LDFLAGS;" \ "OPENSSL_LIBS=$OPENSSL_LIBS; OPENSSL_INCLUDES=$OPENSSL_INCLUDES" >&AS_MESSAGE_LOG_FD save_LIBS="$LIBS" save_LDFLAGS="$LDFLAGS" save_CPPFLAGS="$CPPFLAGS" LDFLAGS="$LDFLAGS $OPENSSL_LDFLAGS" LIBS="$OPENSSL_LIBS $LIBS" CPPFLAGS="$OPENSSL_INCLUDES $CPPFLAGS" AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <openssl/ssl.h>], [SSL_new(NULL)])], [ AC_MSG_RESULT([yes]) $1 ], [ AC_MSG_RESULT([no]) $2 ]) CPPFLAGS="$save_CPPFLAGS" LDFLAGS="$save_LDFLAGS" LIBS="$save_LIBS" AC_SUBST([OPENSSL_INCLUDES]) AC_SUBST([OPENSSL_LIBS]) AC_SUBST([OPENSSL_LDFLAGS]) ])