Mingw port fixes (#12103)

* [openal-soft] MinGW build fixes

* [glew] MinGW build fixes

* [protobuf] MinGW build fixes

* [protobuf] Update to 3.12.3

* [protobuf] Preserve existing cross-compilation behavior (e.g. android)

Co-authored-by: Robert Schumacher <roschuma@microsoft.com>
Co-authored-by: Jack·Boos·Yu <47264268+JackBoosY@users.noreply.github.com>

6 files changed, 19 insertions, 4 deletions

diff --git a/ports/glew/CONTROL b/ports/glew/CONTROL
index 9a7fd7e9c..6409f87e7 100644
--- a/ports/glew/CONTROL
+++ b/ports/glew/CONTROL
@@ -1,4 +1,4 @@
 Source: glew
-Version: 2.1.0-7
+Version: 2.1.0-8
 Description: The OpenGL Extension Wrangler Library (GLEW) is a cross-platform open-source C/C++ extension loading library.
 Homepage: https://github.com/nigels-com/glew
diff --git a/ports/glew/portfile.cmake b/ports/glew/portfile.cmake
index 504a91dcf..de436818c 100644
--- a/ports/glew/portfile.cmake
+++ b/ports/glew/portfile.cmake
@@ -26,7 +26,7 @@ vcpkg_configure_cmake(
 vcpkg_install_cmake()
 vcpkg_fixup_cmake_targets(CONFIG_PATH lib/cmake/glew)
 
-if(VCPKG_TARGET_IS_WINDOWS)
+if(VCPKG_TARGET_IS_WINDOWS AND NOT VCPKG_TARGET_IS_MINGW)
 set(_targets_cmake_files)
 if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
     list(APPEND _targets_cmake_files "${CURRENT_PACKAGES_DIR}/share/glew/glew-targets-debug.cmake")
diff --git a/ports/openal-soft/CONTROL b/ports/openal-soft/CONTROL
index 6b84e63ff..a139fb9e8 100644
--- a/ports/openal-soft/CONTROL
+++ b/ports/openal-soft/CONTROL
@@ -1,6 +1,6 @@
 Source: openal-soft
 Version: 1.20.1
-Port-Version: 4
+Port-Version: 5
 Homepage: https://github.com/kcat/openal-soft
 Description: OpenAL Soft is an LGPL-licensed, cross-platform, software implementation of the OpenAL 3D audio API.
 Supports: !uwp
diff --git a/ports/openal-soft/fix-mingw-build.patch b/ports/openal-soft/fix-mingw-build.patch
new file mode 100644
index 000000000..ffb2db303
--- /dev/null
+++ b/ports/openal-soft/fix-mingw-build.patch
@@ -0,0 +1,14 @@
+diff --git a/common/alstring.h b/common/alstring.h
+index 194e54a1..5a5f87ed 100644
+--- a/common/alstring.h
++++ b/common/alstring.h
+@@ -4,6 +4,9 @@
+ #include <cstddef>
+ #include <string>
+ 
++// This fixes MinGW link errors. It defines strcasecmp and strncasecmp in string.h.
++#include <string.h>
++
+ #include "almalloc.h"
+ 
+ 
diff --git a/ports/openal-soft/portfile.cmake b/ports/openal-soft/portfile.cmake
index 5b6c8067c..31ebc6bae 100644
--- a/ports/openal-soft/portfile.cmake
+++ b/ports/openal-soft/portfile.cmake
@@ -9,6 +9,7 @@ vcpkg_from_github(
     PATCHES
         dont-export-symbols-in-static-build.patch
         fix-arm-builds.patch
+        fix-mingw-build.patch
 )
 
 if(VCPKG_LIBRARY_LINKAGE STREQUAL "dynamic")
diff --git a/ports/protobuf/portfile.cmake b/ports/protobuf/portfile.cmake
index 2c4497fe0..4bfc11644 100644
--- a/ports/protobuf/portfile.cmake
+++ b/ports/protobuf/portfile.cmake
@@ -12,7 +12,7 @@ vcpkg_from_github(
 
 if(CMAKE_HOST_WIN32 AND NOT VCPKG_TARGET_ARCHITECTURE MATCHES "x64" AND NOT VCPKG_TARGET_ARCHITECTURE MATCHES "x86")
     set(protobuf_BUILD_PROTOC_BINARIES OFF)
-elseif(CMAKE_HOST_WIN32 AND VCPKG_CMAKE_SYSTEM_NAME)
+elseif(CMAKE_HOST_WIN32 AND NOT VCPKG_TARGET_IS_MINGW AND NOT (VCPKG_TARGET_IS_WINDOWS AND NOT VCPKG_TARGET_IS_UWP))
     set(protobuf_BUILD_PROTOC_BINARIES OFF)
 else()
     set(protobuf_BUILD_PROTOC_BINARIES ON)