First pass at getting cmake build to work with non-Windows systems.

Make doc building option dependent on asciidoc being installed
Fix MSVC build requiring cygwin.
Don't use try_run to get the version

builds/cmake/platform.hpp.in

+#ifndef __ZMQ_PLATFORM_HPP_INCLUDED__
+#define __ZMQ_PLATFORM_HPP_INCLUDED__
+
+#cmakedefine ZMQ_FORCE_SELECT
+#cmakedefine ZMQ_FORCE_POLL
+#cmakedefine ZMQ_FORCE_EPOLL
+#cmakedefine ZMQ_FORCE_DEVPOLL
+#cmakedefine ZMQ_FORCE_KQUEUE
+#cmakedefine ZMQ_FORCE_SELECT
+#cmakedefine ZMQ_FORCE_POLL
+
+#cmakedefine ZMQ_FORCE_MUTEXES
+
+
+#cmakedefine HAVE_CLOCK_GETTIME
+#cmakedefine HAVE_GETHRTIME
+#cmakedefine ZMQ_HAVE_UIO
+
+#cmakedefine ZMQ_HAVE_EVENTFD
+#cmakedefine ZMQ_HAVE_IFADDRS
+
+#cmakedefine ZMQ_HAVE_SOCK_CLOEXEC
+#cmakedefine ZMQ_HAVE_SO_KEEPALIVE
+#cmakedefine ZMQ_HAVE_TCP_KEEPCNT
+#cmakedefine ZMQ_HAVE_TCP_KEEPIDLE
+#cmakedefine ZMQ_HAVE_TCP_KEEPINTVL
+#cmakedefine ZMQ_HAVE_TCP_KEEPALIVE
+
+#cmakedefine ZMQ_HAVE_OPENPGM
+#cmakedefine ZMQ_MAKE_VALGRIND_HAPPY
+
+#cmakedefine size_t
+#cmakedefine ssize_t
+
+
+#ifdef _AIX
+  #define ZMQ_HAVE_AIX
+#endif
+
+#if defined ANDROID
+  #define ZMQ_HAVE_ANDROID
+#endif
+
+#if defined __CYGWIN__
+  #define ZMQ_HAVE_CYGWIN
+#endif
+
+#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
+  #define ZMQ_HAVE_FREEBSD
+#endif
+
+#if defined __hpux
+  #define ZMQ_HAVE_HPUX
+#endif
+
+#if defined __linux__
+  #define ZMQ_HAVE_LINUX
+#endif
+
+#if defined __NetBSD__
+  #define ZMQ_HAVE_NETBSD
+#endif
+
+#if defined __OpenBSD__
+  #define ZMQ_HAVE_OPENBSD
+#endif
+
+#if defined __VMS
+  #define ZMQ_HAVE_OPENVMS
+#endif
+
+#if defined __APPLE__
+  #define ZMQ_HAVE_OSX
+#endif
+
+#if defined __QNXNTO__
+  #define ZMQ_HAVE_QNXNTO
+#endif
+
+#if defined(sun) || defined(__sun)
+  #define ZMQ_HAVE_SOLARIS
+#endif
+
+#if defined(WIN32) || defined(_WIN32)
+  #define ZMQ_HAVE_WINDOWS
+#endif
+
+
+
+#endif

cmake/Modules/AutoconfHelper.cmake

+# Helper functions for translating autoconf projects. Several functions
+# are lifted from the Mono sources
+
+include (CheckCSourceCompiles)
+include (CheckIncludeFile)
+include (TestBigEndian)
+include (CheckFunctionExists)
+include (CheckTypeSize)
+include (CheckCSourceRuns)
+
+
+# Function to get the version information from the configure.ac file in the
+# current directory. Its argument is the name of the library as passed to
+# AC_INIT. It will set the variables ${LIBNAME}_VERSION and ${LIBNAME}_SOVERSION
+function (ac_get_version libname)
+  string(TOUPPER "${libname}" libname_upper)
+  
+  # Read the relevant content from configure.ac
+  file (STRINGS configure.ac tmp_configure_ac
+    REGEX "${libname_upper}_[_A-Z]+=[ \\t]*[0-9]+")
+  
+  # Product version
+  string (REGEX REPLACE ".+MAJOR[_A-Z]+=([0-9]+).+MINOR[_A-Z]+=([0-9]+).+MICRO[_A-Z]+=([0-9]+).*"
+    "\\1.\\2.\\3" ${libname_upper}_VERSION "${tmp_configure_ac}")
+    
+  # Library version for libtool
+  string (REGEX REPLACE ".+CURRENT=([0-9]+).+REVISION=([0-9]+).+AGE=([0-9]+).*"
+    "\\1.\\2.\\3" ${libname_upper}_SOVERSION "${tmp_configure_ac}")
+  
+  # Checks if the string needs to be displayed
+  set (${libname_upper}_DISPLAYSTR_AUX 
+    "Found ${libname} version ${${libname_upper}_VERSION}, soversion ${${libname_upper}_SOVERSION} from configure.ac"
+  )
+  if ((NOT ${libname_upper}_DISPLAYSTR) OR (NOT ${libname_upper}_DISPLAYSTR STREQUAL ${libname_upper}_DISPLAYSTR_AUX))
+    set (${libname_upper}_DISPLAYSTR ${${libname_upper}_DISPLAYSTR_AUX} 
+      CACHE INTERNAL "Version string from ${libname}" FORCE)
+    message (STATUS ${${libname_upper}_DISPLAYSTR})
+  endif ()
+  
+  # Export the result to the caller
+  set(${libname_upper}_VERSION "${${libname_upper}_VERSION}" PARENT_SCOPE)
+  set(${libname_upper}_SOVERSION "${${libname_upper}_SOVERSION}" PARENT_SCOPE)
+endfunction()
+
+
+# Also from mono's source code
+# Implementation of AC_CHECK_HEADERS
+# In addition, it also records the list of variables in the variable 
+# 'autoheader_vars', and for each variable, a documentation string in the
+# variable ${var}_doc
+function(ac_check_headers)
+  foreach (header ${ARGV})
+	string(TOUPPER ${header} header_var)
+	string(REPLACE "." "_" header_var ${header_var})
+	string(REPLACE "/" "_" header_var ${header_var})
+	set(header_var "HAVE_${header_var}")
+	check_include_file (${header} ${header_var})
+	set("${header_var}_doc" "Define to 1 if you have the <${header}> header file." PARENT_SCOPE)
+	if (${header_var})
+	  set("${header_var}_defined" "1" PARENT_SCOPE)
+	endif()
+	set("${header_var}_val" "1" PARENT_SCOPE)
+	set (autoheader_vars ${autoheader_vars} ${header_var})
+  endforeach()
+  set (autoheader_vars ${autoheader_vars} PARENT_SCOPE)
+endfunction()
+
+# Function taken from mono's source code
+function (ac_check_funcs)
+  foreach (func ${ARGV})
+    string(TOUPPER ${func} var)
+    set(var "HAVE_${var}")
+    set(${var})
+    check_function_exists (${func} ${var})
+    set("${var}_doc" "Define to 1 if you have the '${func}' function." PARENT_SCOPE)
+    if (${var})
+      set("${var}_defined" "1" PARENT_SCOPE)
+      set(${var} yes PARENT_SCOPE)
+    endif()
+    set("${var}_val" "1" PARENT_SCOPE)
+    set (autoheader_vars ${autoheader_vars} ${var})
+  endforeach()
+  set (autoheader_vars ${autoheader_vars} PARENT_SCOPE)
+endfunction()
+
+
+# Specifically, this macro checks for stdlib.h', stdarg.h',
+# string.h', and float.h'; if the system has those, it probably
+# has the rest of the ANSI C header files.  This macro also checks
+# whether string.h' declares memchr' (and thus presumably the
+# other mem' functions), whether stdlib.h' declare free' (and
+# thus presumably malloc' and other related functions), and whether
+# the ctype.h' macros work on characters with the high bit set, as
+# ANSI C requires.
+function (ac_header_stdc)
+  if (STDC_HEADERS)
+    return()
+  endif()
+  message(STATUS "Looking for ANSI-C headers")
+  set(code "
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int main(int argc, char **argv)
+{
+  void *ptr;
+  free((void*)1);
+  ptr = memchr((void*)1, 0, 0);
+
+  return (int)ptr;
+}
+")
+  # FIXME Check the ctype.h high bit
+  CHECK_C_SOURCE_COMPILES("${code}" STDC_HEADERS)
+  if (STDC_HEADERS)
+    set(STDC_HEADERS 1 PARENT_SCOPE)
+	message(STATUS "Looking for ANSI-C headers - found")
+  else()
+    message(STATUS "Looking for ANSI-C headers - not found")
+  endif()
+endfunction()
+
+
+# Also from the mono sources, kind of implements AC_SYS_LARGEFILE
+function (ac_sys_largefile)
+  CHECK_C_SOURCE_RUNS("
+#include <sys/types.h>
+#define BIG_OFF_T (((off_t)1<<62)-1+((off_t)1<<62))
+int main (int argc, char **argv) {
+    int big_off_t=((BIG_OFF_T%2147483629==721) &&
+                   (BIG_OFF_T%2147483647==1));
+    return big_off ? 0 : 1;
+}
+" HAVE_LARGE_FILE_SUPPORT)
+
+# Check if it makes sense to define _LARGE_FILES or _FILE_OFFSET_BITS
+  if (HAVE_LARGE_FILE_SUPPORT)
+    return()
+  endif()
+  
+  set (_LARGE_FILE_EXTRA_SRC "
+#include <sys/types.h>
+int main (int argc, char **argv) {
+  return sizeof(off_t) == 8 ? 0 : 1;
+}
+")
+  CHECK_C_SOURCE_RUNS ("#define _LARGE_FILES\n${_LARGE_FILE_EXTRA_SRC}" 
+    HAVE_USEFUL_D_LARGE_FILES)
+  if (NOT HAVE_USEFUL_D_LARGE_FILES)
+    if (NOT DEFINED HAVE_USEFUL_D_FILE_OFFSET_BITS)
+      set (SHOW_LARGE_FILE_WARNING TRUE)
+    endif ()
+    CHECK_C_SOURCE_RUNS ("#define _FILE_OFFSET_BITS 64\n${_LARGE_FILE_EXTRA_SRC}"
+      HAVE_USEFUL_D_FILE_OFFSET_BITS)
+	  if (HAVE_USEFUL_D_FILE_OFFSET_BITS)
+      set (_FILE_OFFSET_BITS 64 PARENT_SCOPE)
+	  elseif (SHOW_LARGE_FILE_WARNING)
+	    message (WARNING "No 64 bit file support through off_t available.")
+	  endif ()
+  else ()
+    set (_LARGE_FILES 1 PARENT_SCOPE)
+  endif ()
+endfunction ()
+
+
+# Quick way to set some basic variables
+# FIXME add support for variable number of arguments: only package and version are mandatory
+function (ac_init package version bug_report tarname)
+  set(PACKAGE_NAME "\"${package}\"" PARENT_SCOPE)
+  set(PACKAGE_VERSION "\"${version}\"" PARENT_SCOPE)
+  set(VERSION "\"${version}\"" PARENT_SCOPE)
+  set(PACKAGE_STRING "\"${package} ${version}\"" PARENT_SCOPE)
+  
+  if (bug_report)
+    set(PACKAGE_BUGREPORT "\"${bug_report}\"" PARENT_SCOPE)
+  endif()
+  if (tarname)
+    set(PACKAGE_TARNAME "\"${tarname}\"" PARENT_SCOPE)
+    set(PACKAGE "\"${tarname}\"" PARENT_SCOPE)
+    set(PACKAGE_UNQUOTED "${tarname}" PARENT_SCOPE)
+  endif()
+endfunction()
+
+
+# Checks for the const keyword, defining "HAS_CONST_SUPPORT"
+# If it does not have support, defines "const" to 0 in the parent scope
+function (ac_c_const)
+  CHECK_C_SOURCE_COMPILES(
+    "int main(int argc, char **argv){const int r = 0;return r;}"
+    HAS_CONST_SUPPORT)
+  if (NOT HAS_CONST_SUPPORT)
+    set(const 0 PARENT_SCOPE)
+  endif()
+endfunction()
+
+
+# Inline keyword support. Defines "inline" in the parent scope to the
+# compiler internal keyword for inline in C
+# TODO write a better test!
+function (ac_c_inline)
+  if (MSVC)
+    set (inline __inline)
+  elseif(CMAKE_COMPILER_IS_GNUC)
+    set (inline __inline__)
+  endif()
+  set(inline "${inline}" PARENT_SCOPE)
+endfunction()
+
+
+# Test if you can safely include both <sys/time.h> and <time.h>
+function (ac_header_time)
+  CHECK_C_SOURCE_COMPILES(
+    "#include <sys/time.h>\n#include <time.h>\nint main(int argc, char **argv) { return 0; }" 
+    TIME_WITH_SYS_TIME)
+  set(TIME_WITH_SYS_TIME ${TIME_WITH_SYS_TIME} PARENT_SCOPE)
+endfunction()
+
+
+# Native cpu byte order: 1 if big-endian (Motorola) or 0 if little-endian
+# (Intel), setting "WORDS_BIGENDIAN" to 1 if big endian
+function (ac_c_bigendian)
+  TEST_BIG_ENDIAN(HOST_BIGENDIAN)
+  if (HOST_BIGENDIAN)
+    set(WORDS_BIGENDIAN 1 PARENT_SCOPE)
+  endif()
+endfunction()
+
+
+# Check for off_t, setting "off_t" in the parent scope
+function(ac_type_off_t)
+  CHECK_TYPE_SIZE("off_t" SIZEOF_OFF_T)
+  if (NOT SIZEOF_OFF_T)
+    set(off_t "long int")
+  endif()
+  set(off_t ${off_t} PARENT_SCOPE)
+endfunction()
+
+
+# Check for size_t, setting "size_t" in the parent scope
+function(ac_type_size_t)
+  CHECK_TYPE_SIZE("size_t" SIZEOF_SIZE_T)
+  if (NOT SIZEOF_SIZE_T)
+    set(size_t "unsigned int")
+  endif()
+  set(size_t ${size_t} PARENT_SCOPE)
+endfunction()
+
+
+# Define "TM_IN_SYS_TIME" to 1 if <sys/time.h> declares "struct tm"
+function(ac_struct_tm)
+  CHECK_C_SOURCE_COMPILES(
+    "#include <sys/time.h>\nint main(int argc, char **argv) { struct tm x; return 0; }"
+    TM_IN_SYS_TIME
+  )
+  if (TM_IN_SYS_TIME)
+    set (TM_IN_SYS_TIME 1 PARENT_SCOPE)
+  endif()
+endfunction()
+
+
+# Obtain size of an 'type' and define as SIZEOF_TYPE
+function (ac_check_sizeof typename)
+  string(TOUPPER "SIZEOF_${typename}" varname)
+	string(REPLACE " " "_" varname "${varname}")
+  string(REPLACE "*" "p" varname "${varname}")
+  CHECK_TYPE_SIZE("${typename}" ${varname} BUILTIN_TYPES_ONLY)
+  if(NOT ${varname})
+    set(${varname} 0 PARENT_SCOPE)
+  endif()
+endfunction()
+
+
+# Check if the type exists, defines HAVE_<type>
+function (ac_check_type typename)
+  string(TOUPPER "${typename}" varname)
+	string(REPLACE " " "_" varname "${varname}")
+  string(REPLACE "*" "p" varname "${varname}")
+  CHECK_TYPE_SIZE("${typename}" ${varname})
+  if (NOT "${varname}" STREQUAL "")
+    set("HAVE_${varname}" 1 PARENT_SCOPE)
+    set("${varname}" "${typename}" PARENT_SCOPE)
+  else()
+    set("${varname}" "unknown" PARENT_SCOPE)  
+  endif()
+endfunction()
+
+
+# Verifies if each type on the list exists, using the given prelude
+function (ac_check_types type_list prelude)
+  foreach(typename ${type_list})
+    string(TOUPPER "HAVE_${typename}" varname)
+    string(REPLACE " " "_" varname "${varname}")
+    string(REPLACE "*" "p" varname "${varname}")
+    CHECK_C_SOURCE_COMPILES("${prelude}\n ${typename} foo;" ${varname})
+  endforeach()
+endfunction()

cmake/Modules/FindAsciiDoc.cmake

+# - Find Asciidoc
+# this module looks for asciidoc and a2x
+#
+# ASCIIDOC_EXECUTABLE - the full path to asciidoc
+# ASCIIDOC_FOUND - If false, don't attempt to use asciidoc.
+# A2X_EXECUTABLE - the full path to a2x
+# A2X_FOUND - If false, don't attempt to use a2x.
+
+find_program(ASCIIDOC_EXECUTABLE asciidoc asciidoc.py
+             PATHS "$ENV{ASCIIDOC_ROOT}"
+                   "$ENV{PROGRAMW6432}/asciidoc"
+                   "$ENV{PROGRAMFILES}/asciidoc"
+                   "$ENV{PROGRAMFILES(X86)}/asciidoc")
+
+find_program(A2X_EXECUTABLE a2x)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_ARGS(AsciiDoc REQUIRED_VARS ASCIIDOC_EXECUTABLE)
+mark_as_advanced(ASCIIDOC_EXECUTABLE A2X_EXECUTABLE)
\ No newline at end of file

cmake/Modules/TestZMQVersion.cmake

@@ -5,7 +5,7 @@
         TRY_RUN(RUN_RESULT COMPILE_RESULT
           ${TRY_RUN_DIR}
           ${CMAKE_SOURCE_DIR}/cmake/Modules/zmq_version.cpp
-          CMAKE_FLAGS 
+          CMAKE_FLAGS
             "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_SOURCE_DIR}/include"
           COMPILE_OUTPUT_VARIABLE COMPILE_OUTPUT
           RUN_OUTPUT_VARIABLE RUN_OUTPUT)

cmake/Modules/ZMQSourceRunChecks.cmake

+
+
+macro(zmq_check_sock_cloexec)
+  message(STATUS "Checking whether SOCK_CLOEXEC is supported")
+  check_c_source_runs(
+    "
+#include <sys/types.h>
+#include <sys/socket.h>
+
+int main(int argc, char *argv [])
+{
+    int s = socket(PF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
+    return(s == -1);
+}
+"
+    ZMQ_HAVE_SOCK_CLOEXEC)
+endmacro()
+
+# TCP keep-alives Checks.
+
+macro(zmq_check_so_keepalive)
+  message(STATUS "Checking whether SO_KEEPALIVE is supported")
+  check_c_source_runs(
+"
+#include <sys/types.h>
+#include <sys/socket.h>
+
+int main(int argc, char *argv [])
+{
+    int s, rc, opt = 1;
+    return(
+       ((s = socket(PF_INET, SOCK_STREAM, 0)) == -1) ||
+       ((rc = setsockopt(s, SOL_SOCKET, SO_KEEPALIVE,(char*) &opt, sizeof(int))) == -1)
+    );
+}
+"
+    ZMQ_HAVE_SO_KEEPALIVE)
+endmacro()
+
+macro(zmq_check_tcp_keepcnt)
+  message(STATUS "Checking whether TCP_KEEPCNT is supported")
+  check_c_source_runs(
+    "
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+
+int main(int argc, char *argv [])
+{
+    int s, rc, opt = 1;
+    return(
+       ((s = socket(PF_INET, SOCK_STREAM, 0)) == -1) ||
+       ((rc = setsockopt(s, SOL_SOCKET, SO_KEEPALIVE,(char*) &opt, sizeof(int))) == -1) ||
+       ((rc = setsockopt(s, IPPROTO_TCP, TCP_KEEPCNT,(char*) &opt, sizeof(int))) == -1)
+    );
+}
+"
+    ZMQ_HAVE_TCP_KEEPCNT)
+endmacro()
+
+macro(zmq_check_tcp_keepidle)
+  message(STATUS "Checking whether TCP_KEEPIDLE is supported")
+  check_c_source_runs(
+    "
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+
+int main(int argc, char *argv [])
+{
+    int s, rc, opt = 1;
+    return(
+       ((s = socket(PF_INET, SOCK_STREAM, 0)) == -1) ||
+       ((rc = setsockopt(s, SOL_SOCKET, SO_KEEPALIVE,(char*) &opt, sizeof(int))) == -1) ||
+       ((rc = setsockopt(s, IPPROTO_TCP, TCP_KEEPIDLE,(char*) &opt, sizeof(int))) == -1)
+    );
+}
+"
+    ZMQ_HAVE_TCP_KEEPIDLE)
+endmacro()
+
+
+macro(zmq_check_tcp_keepintvl)
+  message(STATUS "Checking whether TCP_KEEPINTVL is supported")
+  check_c_source_runs(
+    "
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+
+int main(int argc, char *argv [])
+{
+    int s, rc, opt = 1;
+    return(
+       ((s = socket(PF_INET, SOCK_STREAM, 0)) == -1) ||
+       ((rc = setsockopt(s, SOL_SOCKET, SO_KEEPALIVE,(char*) &opt, sizeof(int))) == -1) ||
+       ((rc = setsockopt(s, IPPROTO_TCP, TCP_KEEPINTVL,(char*) &opt, sizeof(int))) == -1)
+    );
+}
+
+"
+    ZMQ_HAVE_TCP_KEEPINTVL)
+endmacro()
+
+
+macro(zmq_check_tcp_keepalive)
+  message(STATUS "Checking whether TCP_KEEPALIVE is supported")
+  check_c_source_runs(
+    "
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+
+int main(int argc, char *argv [])
+{
+    int s, rc, opt = 1;
+    return(
+       ((s = socket(PF_INET, SOCK_STREAM, 0)) == -1) ||
+       ((rc = setsockopt(s, SOL_SOCKET, SO_KEEPALIVE,(char*) &opt, sizeof(int))) == -1) ||
+       ((rc = setsockopt(s, IPPROTO_TCP, TCP_KEEPALIVE,(char*) &opt, sizeof(int))) == -1)
+    );
+}
+"
+    ZMQ_HAVE_TCP_KEEPALIVE)
+endmacro()

cmake/Modules/zmq_version.cpp

-/*
-    Copyright (c) 2007-2012 iMatix Corporation
-    Copyright (c) 2009-2011 250bpm s.r.o.
-    Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
-
-    This file is part of 0MQ.
-
-    0MQ is free software; you can redistribute it and/or modify it under
-    the terms of the GNU Lesser General Public License as published by
-    the Free Software Foundation; either version 3 of the License, or
-    (at your option) any later version.
-
-    0MQ is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Lesser General Public License for more details.
-
-    You should have received a copy of the GNU Lesser General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "zmq.h"
-
-#include <stdio.h>
-
-int main ()
-{
-    printf ("%d.%d.%d\n", ZMQ_VERSION_MAJOR, ZMQ_VERSION_MINOR, ZMQ_VERSION_PATCH);
-    return 0;
-}
-

src/libzmq.pc.cmake.in

+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=@CMAKE_INSTALL_PREFIX@
+libdir=@CMAKE_INSTALL_PREFIX@/lib
+includedir=@CMAKE_INSTALL_PREFIX@/include
+
+Name: libzmq
+Description: 0MQ c++ library
+Version: @ZMQ_VERSION_MAJOR@.@ZMQ_VERSION_MINOR@.@ZMQ_VERSION_PATCH@
+Libs: -L${libdir} -lzmq
+Cflags: -I@CMAKE_INSTALL_PREFIX@/include