Mercurial > urweb

annotate m4/ax_check_openssl.m4 @ 1739:c414850f206f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
rev   line source
adam@1368 1 # ===========================================================================
adam@1368 2 # http://www.gnu.org/software/autoconf-archive/ax_check_openssl.html
adam@1368 3 # ===========================================================================
adam@1368 4 #
adam@1368 5 # SYNOPSIS
adam@1368 6 #
adam@1368 7 # AX_CHECK_OPENSSL([action-if-found[, action-if-not-found]])
adam@1368 8 #
adam@1368 9 # DESCRIPTION
adam@1368 10 #
adam@1368 11 # Look for OpenSSL in a number of default spots, or in a user-selected
adam@1368 12 # spot (via --with-openssl). Sets
adam@1368 13 #
adam@1368 14 # OPENSSL_INCLUDES to the include directives required
adam@1368 15 # OPENSSL_LIBS to the -l directives required
adam@1368 16 # OPENSSL_LDFLAGS to the -L or -R flags required
adam@1368 17 #
adam@1368 18 # and calls ACTION-IF-FOUND or ACTION-IF-NOT-FOUND appropriately
adam@1368 19 #
adam@1368 20 # This macro sets OPENSSL_INCLUDES such that source files should use the
adam@1368 21 # openssl/ directory in include directives:
adam@1368 22 #
adam@1368 23 # #include <openssl/hmac.h>
adam@1368 24 #
adam@1368 25 # LICENSE
adam@1368 26 #
adam@1368 27 # Copyright (c) 2009,2010 Zmanda Inc. <http://www.zmanda.com/>
adam@1368 28 # Copyright (c) 2009,2010 Dustin J. Mitchell <dustin@zmanda.com>
adam@1368 29 #
adam@1368 30 # Copying and distribution of this file, with or without modification, are
adam@1368 31 # permitted in any medium without royalty provided the copyright notice
adam@1368 32 # and this notice are preserved. This file is offered as-is, without any
adam@1368 33 # warranty.
adam@1368 34
adam@1368 35 #serial 7
adam@1368 36
adam@1368 37 AU_ALIAS([CHECK_SSL], [AX_CHECK_OPENSSL])
adam@1368 38 AC_DEFUN([AX_CHECK_OPENSSL], [
adam@1368 39 found=false
adam@1368 40 AC_ARG_WITH(openssl,
adam@1368 41 AS_HELP_STRING([--with-openssl=DIR],
adam@1368 42 [root of the OpenSSL directory]),
adam@1368 43 [
adam@1368 44 case "$withval" in
adam@1368 45 "" | y | ye | yes | n | no)
adam@1368 46 AC_MSG_ERROR([Invalid --with-openssl value])
adam@1368 47 ;;
adam@1368 48 *) ssldirs="$withval"
adam@1368 49 ;;
adam@1368 50 esac
adam@1368 51 ], [
adam@1368 52 # if pkg-config is installed and openssl has installed a .pc file,
adam@1368 53 # then use that information and don't search ssldirs
adam@1368 54 AC_PATH_PROG(PKG_CONFIG, pkg-config)
adam@1368 55 if test x"$PKG_CONFIG" != x""; then
adam@1368 56 OPENSSL_LDFLAGS=`$PKG_CONFIG openssl --libs-only-L 2>/dev/null`
adam@1368 57 if test $? = 0; then
adam@1368 58 OPENSSL_LIBS=`$PKG_CONFIG openssl --libs-only-l 2>/dev/null`
adam@1368 59 OPENSSL_INCLUDES=`$PKG_CONFIG openssl --cflags-only-I 2>/dev/null`
adam@1368 60 found=true
adam@1368 61 fi
adam@1368 62 fi
adam@1368 63
adam@1368 64 # no such luck; use some default ssldirs
adam@1368 65 if ! $found; then
adam@1368 66 ssldirs="/usr/local/ssl /usr/lib/ssl /usr/ssl /usr/pkg /usr/local /usr"
adam@1368 67 fi
adam@1368 68 ]
adam@1368 69 )
adam@1368 70
adam@1368 71
adam@1368 72 # note that we #include <openssl/foo.h>, so the OpenSSL headers have to be in
adam@1368 73 # an 'openssl' subdirectory
adam@1368 74
adam@1368 75 if ! $found; then
adam@1368 76 OPENSSL_INCLUDES=
adam@1368 77 for ssldir in $ssldirs; do
adam@1368 78 AC_MSG_CHECKING([for openssl/ssl.h in $ssldir])
adam@1368 79 if test -f "$ssldir/include/openssl/ssl.h"; then
adam@1368 80 OPENSSL_INCLUDES="-I$ssldir/include"
adam@1368 81 OPENSSL_LDFLAGS="-L$ssldir/lib"
adam@1666 82 OPENSSL_LIBS="-lssl -lcrypto"
adam@1368 83 found=true
adam@1368 84 AC_MSG_RESULT([yes])
adam@1368 85 break
adam@1368 86 else
adam@1368 87 AC_MSG_RESULT([no])
adam@1368 88 fi
adam@1368 89 done
adam@1368 90
adam@1368 91 # if the file wasn't found, well, go ahead and try the link anyway -- maybe
adam@1368 92 # it will just work!
adam@1368 93 fi
adam@1368 94
adam@1368 95 # try the preprocessor and linker with our new flags,
adam@1368 96 # being careful not to pollute the global LIBS, LDFLAGS, and CPPFLAGS
adam@1368 97
adam@1368 98 AC_MSG_CHECKING([whether compiling and linking against OpenSSL works])
adam@1368 99 echo "Trying link with OPENSSL_LDFLAGS=$OPENSSL_LDFLAGS;" \
adam@1368 100 "OPENSSL_LIBS=$OPENSSL_LIBS; OPENSSL_INCLUDES=$OPENSSL_INCLUDES" >&AS_MESSAGE_LOG_FD
adam@1368 101
adam@1368 102 save_LIBS="$LIBS"
adam@1368 103 save_LDFLAGS="$LDFLAGS"
adam@1368 104 save_CPPFLAGS="$CPPFLAGS"
adam@1368 105 LDFLAGS="$LDFLAGS $OPENSSL_LDFLAGS"
adam@1368 106 LIBS="$OPENSSL_LIBS $LIBS"
adam@1368 107 CPPFLAGS="$OPENSSL_INCLUDES $CPPFLAGS"
adam@1459 108 AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <openssl/ssl.h>], [SSL_new(NULL)])],
adam@1368 109 [
adam@1368 110 AC_MSG_RESULT([yes])
adam@1368 111 $1
adam@1368 112 ], [
adam@1368 113 AC_MSG_RESULT([no])
adam@1368 114 $2
adam@1368 115 ])
adam@1368 116 CPPFLAGS="$save_CPPFLAGS"
adam@1368 117 LDFLAGS="$save_LDFLAGS"
adam@1368 118 LIBS="$save_LIBS"
adam@1368 119
adam@1368 120 AC_SUBST([OPENSSL_INCLUDES])
adam@1368 121 AC_SUBST([OPENSSL_LIBS])
adam@1368 122 AC_SUBST([OPENSSL_LDFLAGS])
adam@1368 123 ])