Define variables differently for Solaris. 

Do not plan to send upstream.

diff --git a/toolkit/library/StaticXULComponentsEnd/StaticXULComponentsEnd.cpp b/toolkit/library/StaticXULComponentsEnd/StaticXULComponentsEnd.cpp

--- a/toolkit/library/StaticXULComponentsEnd/StaticXULComponentsEnd.cpp

+++ b/toolkit/library/StaticXULComponentsEnd/StaticXULComponentsEnd.cpp

@@ -5,9 +5,10 @@

 #ifdef _MSC_VER

 /* Sections on Windows are in two parts, separated with $. When linking,

  * sections with the same first part are all grouped, and ordered

  * alphabetically with the second part as sort key. */

 #  pragma section(".kPStaticModules$Z", read)

 #  undef NSMODULE_SECTION

 #  define NSMODULE_SECTION __declspec(allocate(".kPStaticModules$Z"), dllexport)

 #endif

-NSMODULE_DEFN(end_kPStaticModules) = nullptr;

+static const mozilla::Module kEndModule = { 0 };

+NSMODULE_DEFN(end_kPStaticModules) = &kEndModule;

diff --git a/toolkit/library/StaticXULComponentsStart.cpp b/toolkit/library/StaticXULComponentsStart.cpp

--- a/toolkit/library/StaticXULComponentsStart.cpp

+++ b/toolkit/library/StaticXULComponentsStart.cpp

@@ -1,3 +1,4 @@

 #include "mozilla/Module.h"

-NSMODULE_DEFN(start_kPStaticModules) = nullptr;

+static const mozilla::Module kStartModule = { 0 };

+NSMODULE_DEFN(start_kPStaticModules) = &kStartModule;