Fix compiling on Solaris since Nate's libelf change

SConstruct:
    export env after we've set CC/CXX
ext/libelf/SConscript:
    pull in the CC/CXX variables from env. Use gm4 if it exists
ext/libelf/elf_begin.c:
ext/libelf/libelf_allocate.c:
    include errno.h instead of sys/errno.h
ext/libelf/elf_common.h:
    use the more standard uintX_t
ext/libelf/elf_strptr.c:
ext/libelf/elf_update.c:
    include sysmacros.h on Solaris for roundup()

--HG--
extra : convert_revision : ea1aab834029399c445dfa4c9f78febf2c3d8f0c

ext/libelf/SConscript

@@ -28,7 +28,7 @@
 #
 # Authors: Nathan Binkert
 
-import os
+import os, subprocess
 
 Import('env')
 
@@ -88,6 +88,15 @@ ElfFile('libelf_fsize.c')
 ElfFile('libelf_msize.c')
 
 m4env = Environment(ENV=os.environ)
+if env.get('CC'):
+    m4env['CC'] = env['CC']
+if env.get('CXX'):
+    m4env['CXX'] = env['CXX']
+# If we have gm4 use it
+if subprocess.Popen("gm4 --version", shell=True, stdout=subprocess.PIPE, 
+                     stderr=subprocess.STDOUT, close_fds=True).communicate()[0].find('GNU') >= 0:
+    m4env['M4'] = 'gm4'
+
 m4env.Append(M4FLAGS='-DSRCDIR=%s' % Dir('.').path)
 m4env['M4COM'] = '$M4 $M4FLAGS $SOURCES > $TARGET'
 m4env.M4(target=File('libelf_convert.c'),
@@ -101,3 +110,4 @@ m4env.Library('elf', elf_files)
 env.Append(CPPPATH=Dir('.'))
 env.Append(LIBS=['elf'])
 env.Append(LIBPATH=[Dir('.')])
+

ext/libelf/elf_begin.c

@@ -26,7 +26,7 @@
 
 
 #include <sys/types.h>
-#include <sys/errno.h>
+#include <errno.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
 

ext/libelf/elf_common.h

@@ -45,9 +45,9 @@
  */
 
 typedef struct {
-        u_int32_t	n_namesz;	/* Length of name. */
-        u_int32_t	n_descsz;	/* Length of descriptor. */
-        u_int32_t	n_type;		/* Type of this note. */
+        uint32_t	n_namesz;	/* Length of name. */
+        uint32_t	n_descsz;	/* Length of descriptor. */
+        uint32_t	n_type;		/* Type of this note. */
 } Elf_Note;
 
 /* Indexes into the e_ident array.  Keep synced with

ext/libelf/elf_strptr.c

@@ -26,6 +26,9 @@
 
 
 #include <sys/param.h>
+#ifdef __sun
+#include <sys/sysmacros.h>
+#endif
 
 #include <assert.h>
 #include "gelf.h"

ext/libelf/elf_update.c

@@ -27,6 +27,9 @@
 
 #include <sys/mman.h>
 #include <sys/param.h>
+#ifdef __sun
+#include <sys/sysmacros.h>
+#endif
 
 #include <assert.h>
 #include <errno.h>

ext/libelf/libelf_allocate.c

@@ -28,7 +28,7 @@
  * Internal APIs
  */
 
-#include <sys/errno.h>
+#include <errno.h>
 
 #include <assert.h>
 #include "libelf.h"