added a FAKEROOT define allowing to use pacman in a fakeroot enivronment (for tests purpose)

configure.ac

@@ -52,6 +52,11 @@ AC_ARG_ENABLE(debug,
     AC_HELP_STRING([--disable-debug], [Disable debugging support]),
     [debug=$enableval], [debug=yes])
 
+dnl Help line for fakeroot
+AC_ARG_ENABLE(fakeroot,
+    AC_HELP_STRING([--disable-fakeoot], [Disable fakeroot proof  support]),
+    [fakeroot=$enableval], [fakeroot=yes])
+
 dnl Check for man2html binary
 AC_MSG_CHECKING(for support man2html)
 if test x$wantman2html = xyes ; then
@@ -111,6 +116,15 @@ else
     AC_MSG_RESULT(no)
 fi
 
+dnl Enable or disable fakeroot code
+AC_MSG_CHECKING(for fakeroot proof support)
+if test x$fakeroot = xyes ; then
+	AC_MSG_RESULT(yes)
+else
+	CFLAGS="$CFLAGS -DFAKEROOT"
+	AC_MSG_RESULT(no)
+fi
+
 dnl Check for zlib
 AC_CHECK_LIB([z], [gzsetparams], [AC_CHECK_HEADER([zlib.h], [LIBZ='-lz'])])
 if test -n "$LIBZ"; then

lib/libalpm/handle.c

@@ -55,13 +55,19 @@ pmhandle_t *handle_new()
 #ifndef CYGWIN
 	/* see if we're root or not */
 	handle->uid = geteuid();
+#ifndef FAKEROOT
 	if(!handle->uid && getenv("FAKEROOTKEY")) {
 		/* fakeroot doesn't count, we're non-root */
 		handle->uid = 99;
 	}
+#endif
 
 	/* see if we're root or not (fakeroot does not count) */
+#ifndef FAKEROOT
 	if(handle->uid == 0 && !getenv("FAKEROOTKEY")) {
+#else
+	if(handle->uid == 0) {
+#endif
 		handle->access = PM_ACCESS_RW;
 	} else {
 		handle->access = PM_ACCESS_RO;

src/pacman/pacman.c

@@ -101,10 +101,12 @@ int main(int argc, char *argv[])
 #ifndef CYGWIN
 	/* see if we're root or not */
 	myuid = geteuid();
+#ifndef FAKEROOT
 	if(!myuid && getenv("FAKEROOTKEY")) {
 		/* fakeroot doesn't count, we're non-root */
 		myuid = 99;
 	}
+#endif
 
 	/* check if we have sufficient permission for the requested operation */
 	if(myuid > 0) {