> Mark Heily:

>
> I have attached a collection of patches that allows libdispatch to build on
> Linux and Solaris. Many thanks to Joakim Johansson for providing the Solaris
> patches and testing everything.
> 
> The commands I used to build on Linux are:
> 
>   CC="clang" LD="llvm-ld-2.8" CFLAGS="-I/usr/local" \
>   LDFLAGS="-L/usr/local" LIBS="-lbsd" ./configure && make
> 
> The commands Joakim used to build on Solaris are:
> 
>   ./configure CFLAGS="-m64 -I/usr/local/include" \
>   LDFLAGS="-L/usr/local/lib” gmake

My Solaris and Linux environments are limping at the moment (dev tools all
horked up in both) so I couldn't do the build tests on anything but Darwin,
but the patches pass the eyeball check in any case.  Also made a small
change to the xcode project to increase buildability (no legacy APIs).

git-svn-id: https://svn.macosforge.org/repository/libdispatch/trunk@194 5710d607-3af0-45f8-8f96-4508d4f60227

Author: Jordan K. Hubbard

configure.ac

@@ -181,6 +181,13 @@ AC_CHECK_HEADER([pthread_workqueue.h],
   [AC_DEFINE(HAVE_PTHREAD_WORKQUEUES, 1,Define if pthread work queues are present)]
 )
 
+#
+# Check if libpthread_workqueue.so exists
+#
+AC_CHECK_LIB(pthread_workqueue, pthread_workqueue_init_np,
+        have_lpwq=true, have_lpwq=false)
+AM_CONDITIONAL(USE_LIBPTHREAD_WORKQUEUE, $have_lpwq)
+
 #
 # Find functions and declarations we care about.
 #
@@ -193,7 +200,7 @@ AC_CHECK_DECLS([FD_COPY], [], [], [[#include <sys/select.h>]])
 AC_CHECK_DECLS([SIGEMT], [], [], [[#include <signal.h>]])
 AC_CHECK_DECLS([VQ_UPDATE, VQ_VERYLOWDISK], [], [], [[#include <sys/mount.h>]])
 AC_CHECK_DECLS([program_invocation_short_name], [], [], [[#include <errno.h>]])
-AC_CHECK_FUNCS([pthread_key_init_np pthread_main_np mach_absolute_time malloc_create_zone sysconf getprogname])
+AC_CHECK_FUNCS([pthread_key_init_np pthread_main_np mach_absolute_time malloc_create_zone sysconf getprogname getexecname])
 
 AC_CHECK_DECLS([POSIX_SPAWN_START_SUSPENDED],
   [have_posix_spawn_start_suspended=true],

libdispatch.xcodeproj/project.pbxproj

@@ -328,7 +328,14 @@
 			isa = PBXProject;
 			buildConfigurationList = 1DEB91EF08733DB70010E9CD /* Build configuration list for PBXProject "libdispatch" */;
 			compatibilityVersion = "Xcode 3.1";
+			developmentRegion = English;
 			hasScannedForEncodings = 1;
+			knownRegions = (
+				English,
+				Japanese,
+				French,
+				German,
+			);
 			mainGroup = 08FB7794FE84155DC02AAC07 /* libdispatch */;
 			projectDirPath = "";
 			projectRoot = "";
@@ -403,7 +410,10 @@
 				GCC_ENABLE_CPP_RTTI = NO;
 				GCC_ENABLE_OBJC_EXCEPTIONS = NO;
 				GCC_OPTIMIZATION_LEVEL = s;
-				GCC_PREPROCESSOR_DEFINITIONS = "__DARWIN_NON_CANCELABLE=1";
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DISPATCH_NO_LEGACY=1",
+					"__DARWIN_NON_CANCELABLE=1",
+				);
 				GENERATE_MASTER_OBJECT_FILE = NO;
 				INSTALL_PATH = /usr/local/lib/system;
 				LINK_WITH_STANDARD_LIBRARIES = NO;

m4/private-extern.m4

@@ -4,10 +4,12 @@
 #
 AC_DEFUN([DISPATCH_C_PRIVATE_EXTERN], [
 
+AC_LANG_WERROR
+
 AC_CACHE_CHECK([for __attribute__((visibility("hidden")))],
     dispatch_cv_hidden_visibility_attribute, [
-        AC_TRY_LINK([], 
-                    [extern __attribute__ ((visibility ("hidden"))) int foo;],
+	AC_TRY_LINK([int foo; extern __attribute__ ((visibility ("hidden"))) int foo;], 
+		[foo = 0;],
                     [dispatch_cv_hidden_visibility_attribute=yes],
                     [dispatch_cv_hidden_visibility_attribute=no])])
 

src/Makefile.am

@@ -36,6 +36,10 @@ endif
 libdispatch_la_LIBADD=libshims.la $(KQUEUE_LIBS)
 libdispatch_la_DEPENDENCIES=libshims.la
 
+if USE_LIBPTHREAD_WORKQUEUE
+libdispatch_la_LIBADD+=-lpthread_workqueue
+endif
+
 if USE_MIG
 libdispatch_la_SOURCES+=	\
 	protocolUser.c		\

src/queue.c

@@ -1206,7 +1206,7 @@ _dispatch_root_queues_init(void *context __attribute__((unused)))
 #endif
 #if HAVE_PTHREAD_WORKQUEUES
 		} else {
-			dispatch_assume(_dispatch_root_queue_contexts[i].dgq_kworkqueue);
+			(void)dispatch_assume(_dispatch_root_queue_contexts[i].dgq_kworkqueue);
 		}
 #endif
 	}

src/shims/getprogname.h

@@ -23,15 +23,19 @@
 #define __DISPATCH_SHIMS_GETPROGNAME__
 
 #ifndef HAVE_GETPROGNAME
-static inline char *
+
+static inline const char *
 getprogname(void)
 {
 # if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME
     return program_invocation_short_name;
+#elif HAVE_GETEXECNAME
+    return getexecname();
 # else
 #   error getprogname(3) is not available on this platform
 # endif
 }
+
 #endif /* HAVE_GETPROGNAME */
 
 #endif /* __DISPATCH_SHIMS_GETPROGNAME__ */

src/shims/time.c

@@ -37,6 +37,10 @@ _dispatch_get_host_time_init(void *context __attribute__((unused)))
 	dispatch_assume(QueryPerformanceFrequency(&freq));
 	_dispatch_host_time_data.frac = (long double)NSEC_PER_SEC / (long double)freq.QuadPart;
 	_dispatch_host_time_data.ratio_1_to_1 = (freq.QuadPart == 1);
-#endif /* TARGET_OS_WIN32 */
+#else // TARGET_OS_WIN32 
+	_dispatch_host_time_data.frac = 1.0;
+	_dispatch_host_time_data.ratio_1_to_1 = 1;
+#endif
 }
+
 #endif

testing/dispatch_after.c

@@ -29,7 +29,7 @@
 #include "dispatch_test.h"
 #include <Block.h>
 
-void done(void *arg __unused) {
+void done(void *arg __attribute__((unused))) {
     sleep(1);
     test_stop();
 }