From f09d23b9cd22771e04f49b386e3b67df8ad108c3 Mon Sep 17 00:00:00 2001
From: Ray Donnelly <mingw.android@gmail.com>
Date: Mon, 10 Mar 2014 22:59:39 +0000
Subject: [PATCH] win32-g++: Add QMAKE_EXTENSION_IMPORTLIB defaulting to 'a'

This is to allow the MSYS2 project to set it to 'dll.a' so
that static and shared Qt libraries can be installed into
the same prefix without conflicting.

To change it, you should pass -device-option to configure.

Change-Id: I9ee49d2aef46e21f31b97611de2fc6d3070e288a
---
 mkspecs/features/create_cmake.prf     |  5 +++--
 qmake/generators/win32/mingw_make.cpp | 15 +++++++++++++--
 qmake/generators/win32/mingw_make.h   |  1 +
 3 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/mkspecs/features/create_cmake.prf b/mkspecs/features/create_cmake.prf
index 82e2812..2d8a043 100644
--- a/mkspecs/features/create_cmake.prf
+++ b/mkspecs/features/create_cmake.prf
@@ -214,8 +214,9 @@ mac {
             CMAKE_PRL_FILE_LOCATION_DEBUG = lib$${CMAKE_QT_STEM}d.prl
             CMAKE_PRL_FILE_LOCATION_RELEASE = lib$${CMAKE_QT_STEM}.prl
         } else {
-            CMAKE_IMPLIB_FILE_LOCATION_DEBUG = lib$${CMAKE_QT_STEM}d.a
-            CMAKE_IMPLIB_FILE_LOCATION_RELEASE = lib$${CMAKE_QT_STEM}.a
+            isEmpty(QMAKE_EXTENSION_IMPORTLIB): QMAKE_EXTENSION_IMPORTLIB = a
+            CMAKE_IMPLIB_FILE_LOCATION_DEBUG = lib$${CMAKE_QT_STEM}d.$${QMAKE_EXTENSION_IMPORTLIB}
+            CMAKE_IMPLIB_FILE_LOCATION_RELEASE = lib$${CMAKE_QT_STEM}.$${QMAKE_EXTENSION_IMPORTLIB}
         }
     } else {
         CMAKE_WINMAIN_FILE_LOCATION_DEBUG = qtmain$${QT_LIBINFIX}d.lib
diff --git a/mkspecs/win32-g++/qmake.conf b/mkspecs/win32-g++/qmake.conf
index 6d5764f..77e910b 100644
--- a/mkspecs/win32-g++/qmake.conf
+++ b/mkspecs/win32-g++/qmake.conf
@@ -92,7 +92,7 @@
 QMAKE_EXTENSION_SHLIB   = dll
 QMAKE_PREFIX_STATICLIB  = lib
 QMAKE_EXTENSION_STATICLIB = a
-QMAKE_LIB_EXTENSIONS    = a dll.a
+QMAKE_EXTENSION_IMPORTLIB    = dll.a

 QMAKE_LIBS              =
 QMAKE_LIBS_CORE         = -lole32 -luuid -lws2_32 -ladvapi32 -lshell32 -luser32 -lkernel32
diff --git a/qmake/generators/win32/winmakefile.cpp b/qmake/generators/win32/winmakefile.cpp
index 6d5764f..77e910b 100644
--- a/qmake/generators/win32/winmakefile.cpp
+++ b/qmake/generators/win32/winmakefile.cpp
@@ -85,10 +85,14 @@
 bool
 Win32MakefileGenerator::findLibraries(bool linkPrl, bool mergeLflags)
 {
-    ProStringList impexts = project->values("QMAKE_LIB_EXTENSIONS");
-    if (impexts.isEmpty())
-        impexts = project->values("QMAKE_EXTENSION_STATICLIB");
-    QList<QMakeLocalFileName> dirs;
+  ProStringList impexts;
+  if (project->isActiveConfig("staticlib")) {
+    impexts.append(project->values("QMAKE_EXTENSION_STATICLIB"));
+  } else {
+    impexts.append(project->values("QMAKE_EXTENSION_IMPORTLIB"));
+    impexts.append(project->values("QMAKE_EXTENSION_STATICLIB"));
+  }
+  QList<QMakeLocalFileName> dirs;
   static const char * const lflags[] = { "QMAKE_LIBS", "QMAKE_LIBS_PRIVATE", 0 };
   for (int i = 0; lflags[i]; i++) {
     ProStringList &l = project->values(lflags[i]);
@@ -233,9 +237,12 @@
     if (!project->values("QMAKE_APP_FLAG").isEmpty()) {
         project->values("TARGET_EXT").append(".exe");
     } else if (project->isActiveConfig("shared")) {
+        ProString impext = project->first("QMAKE_EXTENSION_IMPORTLIB");
+        if (impext.isEmpty())
+          impext = project->first("QMAKE_PREFIX_STATICLIB");
         project->values("LIB_TARGET").prepend(project->first("QMAKE_PREFIX_STATICLIB")
                                               + project->first("TARGET") + project->first("TARGET_VERSION_EXT")
-                                              + '.' + project->first("QMAKE_EXTENSION_STATICLIB"));
+                                              + '.' + impext);
         project->values("TARGET_EXT").append(project->first("TARGET_VERSION_EXT") + "."
                 + project->first("QMAKE_EXTENSION_SHLIB"));
         project->values("TARGET").first() = project->first("QMAKE_PREFIX_SHLIB") + project->first("TARGET");